Граф коммитов

12142 Коммитов

Автор SHA1 Сообщение Дата
Khem Raj afbc8d8e72 Fix conditional export of kvh.h and a.out.h to userspace.
Some architectures have moved the asm/ into arch/ and some have not.
This patch checks for a.out.h and kvh.h in both places before exporting
the corresponding file from linux/

[dwmw2: simplified a little]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-05 15:44:31 +01:00
Venkatesh Pallipadi 7c1e768974 clockevents: prevent clockevent event_handler ending up handler_noop
There is a ordering related problem with clockevents code, due to which
clockevents_register_device() called after tickless/highres switch
will not work. The new clockevent ends up with clockevents_handle_noop as
event handler, resulting in no timer activity.

The problematic path seems to be

* old device already has hrtimer_interrupt as the event_handler
* new clockevent device registers with a higher rating
* tick_check_new_device() is called
  * clockevents_exchange_device() gets called
    * old->event_handler is set to clockevents_handle_noop
  * tick_setup_device() is called for the new device
    * which sets new->event_handler using the old->event_handler which is noop.

Change the ordering so that new device inherits the proper handler.

This does not have any issue in normal case as most likely all the clockevent
devices are setup before the highres switch. But, can potentially be affecting
some corner case where HPET force detect happens after the highres switch.
This was a problem with HPET in MSI mode code that we have been experimenting
with.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05 11:11:51 +02:00
Mauro Carvalho Chehab db0a2901a3 Merge branch 'fixes_stg' of ../git_old into fixes 2008-09-04 16:24:02 -03:00
Jean-Francois Moine 20122542df V4L/DVB (8832): gspca: Bad pixelformat of vc0321 webcams.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-09-03 18:37:45 -03:00
Hans de Goede d6db35e89c V4L/DVB (8809): gspca: Revert commit 9a9335776548d01525141c6e8f0c12e86bbde982
the previous patch (sensor upside down).

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-09-03 18:37:22 -03:00
Hans de Goede 89a44b8a69 V4L/DVB (8720): gspca: V4L2_CAP_SENSOR_UPSIDE_DOWN added as a cap for some webcams.
This patch adds a V4L2_CAP_SENSOR_UPSIDE_DOWN flag to the capabilities flags,
and sets this flag for the Philips SPC200NC cam (which has its sensor installed
upside down). The same flag is also needed and added for the Philips SPC300NC.

Together with a patch to libv4l which adds flipping the image in software this
fixes the upside down display with the SPC200NC cam.

Signed-of-by: Hans de Goede <j.w.r.degoede@hhs.nl>

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-09-03 18:37:00 -03:00
Jean-Francois Moine f75c4950bb V4L/DVB (8675): gspca: Pixmap PJPG (Pixart 73xx JPEG) added, generated by pac7311.
The JPEG frames generated by the Pixart 73xx have:
- special markers 'ff ff ff xx' every 1024/512 bytes,
- unused 8 bits at end of JPEG blocks,
and then ask for a new pixel format.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-09-03 18:36:39 -03:00
Linus Torvalds d26acd92fa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ipsec: Fix deadlock in xfrm_state management.
  ipv: Re-enable IP when MTU > 68
  net/xfrm: Use an IS_ERR test rather than a NULL test
  ath9: Fix ath_rx_flush_tid() for IRQs disabled kernel warning message.
  ath9k: Incorrect key used when group and pairwise ciphers are different.
  rt2x00: Compiler warning unmasked by fix of BUILD_BUG_ON
  mac80211: Fix debugfs union misuse and pointer corruption
  wireless/libertas/if_cs.c: fix memory leaks
  orinoco: Multicast to the specified addresses
  iwlwifi: fix 64bit platform firmware loading
  iwlwifi: fix apm_stop (wrong bit polarity for FLAG_INIT_DONE)
  iwlwifi: workaround interrupt handling no some platforms
  iwlwifi: do not use GFP_DMA in iwl_tx_queue_init
  net/wireless/Kconfig: clarify the description for CONFIG_WIRELESS_EXT_SYSFS
  net: Unbreak userspace usage of linux/mroute.h
  pkt_sched: Fix locking of qdisc_root with qdisc_root_sleeping_lock()
  ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0
2008-09-02 21:02:14 -07:00
KOSAKI Motohiro 4b8561521d mm: show quicklist usage in /proc/meminfo
Quicklists can consume several GB of memory.  We should provide a means of
monitoring this.

After this patch is applied, /proc/meminfo will output the following:

% cat /proc/meminfo

MemTotal:      7715392 kB
MemFree:       5401600 kB
Buffers:         80384 kB
Cached:         300800 kB
SwapCached:          0 kB
Active:         235584 kB
Inactive:       262656 kB
SwapTotal:     2031488 kB
SwapFree:      2031488 kB
Dirty:            3520 kB
Writeback:           0 kB
AnonPages:      117696 kB
Mapped:          38528 kB
Slab:          1589952 kB
SReclaimable:    23104 kB
SUnreclaim:    1566848 kB
PageTables:      14656 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
WritebackTmp:        0 kB
CommitLimit:   5889152 kB
Committed_AS:   393152 kB
VmallocTotal: 17592177655808 kB
VmallocUsed:     29056 kB
VmallocChunk: 17592177626432 kB
Quicklists:     130944 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
HugePages_Surp:      0
Hugepagesize:    262144 kB

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Keiichiro Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-02 19:21:38 -07:00
Linus Torvalds afa153fd7b Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide/Kconfig: mark ide-scsi as deprecated
  ide-disk: remove stale init_idedisk_capacity() documentation
  palm_bk3710: improve IDE registration
  ide: fix hwif_to_node()
  IDE: palm_bk3710: fix compile warning for unused variable
  IDE: compile fix for sff_dma_ops
2008-09-02 11:44:11 -07:00
Bartlomiej Zolnierkiewicz 96f80219b7 ide: fix hwif_to_node()
hwif_to_node() incorrectly assumes that hwif->dev always belongs to
a PCI device.  This results in ide-cs oopsing in init_irq() after
commit c56c5648a3 accidentally fixed
device tree registration for ide-cs.  Fix it by using dev_to_node().

Thanks to Martin Michlmayr and Larry Finger for help with debugging
the issue.

Reported-by: Martin Michlmayr <tbm@cyrius.com>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-02 20:18:47 +02:00
Kevin Hilman 71fc9fcc70 IDE: compile fix for sff_dma_ops
The sff_dma_ops struct should be wrapped by BLK_DEV_IDEDMA_SFF instead
of BLK_DEV_IDEDMA_PCI.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-02 20:18:46 +02:00
Linus Torvalds e77295dc9e Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.27' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix buffer overrun decoding NFSv4 acl
  sunrpc: fix possible overrun on read of /proc/sys/sunrpc/transports
  nfsd: fix compound state allocation error handling
  svcrdma: Fix race between svc_rdma_recvfrom thread and the dto_tasklet
2008-09-02 10:58:11 -07:00
Vegard Nossum 673d62cc5e debugobjects: fix lockdep warning
Daniel J. Blueman reported:
> =======================================================
> [ INFO: possible circular locking dependency detected ]
> 2.6.27-rc4-224c #1
> -------------------------------------------------------
> hald/4680 is trying to acquire lock:
>  (&n->list_lock){++..}, at: [<ffffffff802bfa26>] add_partial+0x26/0x80
>
> but task is already holding lock:
>  (&obj_hash[i].lock){++..}, at: [<ffffffff8041cfdc>]
> debug_object_free+0x5c/0x120

We fix it by moving the actual freeing to outside the lock (the lock
now only protects the list).

The pool lock is also promoted to irq-safe (suggested by Dan). It's
necessary because free_pool is now called outside the irq disabled
region. So we need to protect against an interrupt handler which calls
debug_object_init().

[tglx@linutronix.de: added hlist_move_list helper to avoid looping
		     through the list twice]

Reported-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-09-01 09:47:16 +02:00
Linus Torvalds bef69ea0dc Resource handling: add 'insert_resource_expand_to_fit()' function
Not used anywhere yet, but this complements the existing plain
'insert_resource()' functionality with a version that can expand the
resource we are adding in order to fix up any conflicts it has with
existing resources.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-29 20:25:20 -07:00
David S. Miller 7c19a3d280 net: Unbreak userspace usage of linux/mroute.h
Nothing in linux/pim.h should be exported to userspace.

This should fix the XORP build failure reported by
Jose Calhariz, the debain package maintainer.

Nothing originally in linux/mroute.h was exported to userspace
ever, but some of this stuff started to be when it was moved into
this new linux/pim.h, and that was wrong.  If we didn't provide these
definitions for 10 years we can reasonably expect that applications
defined this stuff locally or used GLIBC headers providing the
protocol definitions.  And as such the only result of this can
be conflict and userland build breakage.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 14:37:23 -07:00
Neil Horman 17f0f4a47d crypto: rng - RNG interface and implementation
This patch adds a random number generator interface as well as a
cryptographic pseudo-random number generator based on AES.  It is
meant to be used in cases where a deterministic CPRNG is required.

One of the first applications will be as an input in the IPsec IV
generation process.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:50:04 +10:00
Herbert Xu 73d3864a48 crypto: api - Use test infrastructure
This patch makes use of the new testing infrastructure by requiring
algorithms to pass a run-time test before they're made available to
users.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:49:57 +10:00
Herbert Xu da7f033ddc crypto: cryptomgr - Add test infrastructure
This patch moves the newly created alg_test infrastructure into
cryptomgr.  This shall allow us to use it for testing at algorithm
registrations.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-08-29 15:49:55 +10:00
Linus Torvalds 9c2bdac40e Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Prevent log spam on some DVB adapters
  i2c: Add missing kerneldoc descriptions
  i2c: Fix device_init_wakeup place
2008-08-28 12:28:50 -07:00
David Teigland 0f8e0d9a31 dlm: allow multiple lockspace creates
Add a count for lockspace create and release so that create can
be called multiple times to use the lockspace from different places.
Also add the new flag DLM_LSFL_NEWEXCL to create a lockspace with
the previous behavior of returning -EEXIST if the lockspace already
exists.

Signed-off-by: David Teigland <teigland@redhat.com>
2008-08-28 11:49:15 -05:00
Jean Delvare 96e21e4fbc i2c: Add missing kerneldoc descriptions
Add missing kernel descriptions of struct i2c_driver members.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: David Brownell <david-b@pacbell.net>
2008-08-28 08:33:23 +02:00
Linus Torvalds 5b51a7e9d8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] deal with the first call of ->show() generating no output
  [PATCH] fix ->llseek() for a bunch of directories
  [PATCH] fix regular readdir() and friends
  [PATCH] fix hpux_getdents()
  [PATCH] fix osf_getdirents()
  [PATCH] ntfs: use d_add_ci
  [PATCH] change d_add_ci argument ordering
  [PATCH] fix efs_lookup()
  [PATCH] proc: inode number fixlet
2008-08-27 14:31:44 -07:00
Jens Axboe 5168c47b4c block: remove blk_queue_tag_depth() and blk_queue_tag_queue()
They are unused and ->busy doesn't exist anymore.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27 09:50:20 +02:00
FUJITA Tomonori 4beab5c623 block: rename blk_scsi_cmd_filter to blk_cmd_filter
Technically, the cmd_filter would be applied to other protocols though
it's unlikely to happen. Putting SCSI stuff to request_queue is kinda
layer violation. So let's rename it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27 09:50:19 +02:00
FUJITA Tomonori abf5439370 block: move cmdfilter from gendisk to request_queue
cmd_filter works only for the block layer SG_IO with SCSI block
devices. It breaks scsi/sg.c, bsg, and the block layer SG_IO with SCSI
character devices (such as st). We hit a kernel crash with them.

The problem is that cmd_filter code accesses to gendisk (having struct
blk_scsi_cmd_filter) via inode->i_bdev->bd_disk. It works for only
SCSI block device files. With character device files, inode->i_bdev
leads you to struct cdev. inode->i_bdev->bd_disk->blk_scsi_cmd_filter
isn't safe.

SCSI ULDs don't expose gendisk; they keep it private. bsg needs to be
independent on any protocols. We shouldn't change ULDs to expose their
gendisk.

This patch moves struct blk_scsi_cmd_filter from gendisk to
request_queue, a common object, which eveyone can access to.

The user interface doesn't change; users can change the filters via
/sys/block/. gendisk has a pointer to request_queue so the cmd_filter
code accesses to struct blk_scsi_cmd_filter.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27 09:50:19 +02:00
David Woodhouse 5770a3fb5f Fix userspace export of <linux/net.h>
Including <linux/fcntl.h> in the user-visible part of this header has
caused build regressions with headers from 2.6.27-rc. Move it down to
the #ifdef __KERNEL__ part, which is the only place it's needed. Move
some other kernel-only things down there too, while we're at it.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-26 10:37:20 -07:00
Linus Torvalds 087713f454 Merge branch 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: fix userspace ABI breakage
  KVM: MMU: Fix torn shadow pte
  KVM: Use .fixup instead of .text.fixup on __kvm_handle_fault_on_reboot
2008-08-25 11:19:53 -07:00
Adrian Bunk 1327138e29 KVM: fix userspace ABI breakage
The following part of commit 9ef621d3be
(KVM: Support mixed endian machines) changed on the size of a struct
that is exported to userspace:

include/linux/kvm.h:

@@ -318,14 +318,14 @@ struct kvm_trace_rec {
 	__u32 vcpu_id;
 	union {
 		struct {
-			__u32 cycle_lo, cycle_hi;
+			__u64 cycle_u64;
 			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
 		} cycle;
 		struct {
 			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
 		} nocycle;
 	} u;
-};
+} __attribute__((packed));

Packing a struct was the correct idea, but it packed the wrong struct.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-08-25 17:28:25 +03:00
Rusty Russell bf20029677 stop_machine: Remove deprecated stop_machine_run
Everyone should be using stop_machine() now.  The staged API
transition helped life in linux-next.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-26 00:19:27 +10:00
Christoph Hellwig e45b590b97 [PATCH] change d_add_ci argument ordering
As pointed out during review d_add_ci argument order should match d_add,
so switch the dentry and inode arguments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-08-25 01:18:05 -04:00
Adrian Bunk 7a8fc9b248 removed unused #include <linux/version.h>'s
This patch lets the files using linux/version.h match the files that
#include it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-23 12:14:12 -07:00
Linus Torvalds 3ffc3f947d Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  nohz: fix wrong event handler after online an offlined cpu
2008-08-22 08:36:20 -07:00
Linus Torvalds a7b354e868 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] pata_it821x: fix warning
  libata: Fix a large collection of DMA mode mismatches
  ahci: sis controllers actually can do PMP
  pata_via: clean up recent tf_load changes
  libata: restore SControl on detach
  libata: use ata_link_printk() when printing SError
  libata: always do follow-up SRST if hardreset returned -EAGAIN
  libata: fix EH action overwriting in ata_eh_reset()
  sata_mv: add the Gen IIE flag to the SoC devices.
  ata_piix: IDE Mode SATA patch for Intel Ibex Peak DeviceIDs
  ahci: RAID mode SATA patch for Intel Ibex Peak DeviceIDs
  sata_mv: don't issue two DMA commands concurrently
  libata: implement no[hs]rst force params
2008-08-22 08:22:33 -07:00
Alan Cox b15b3ebae1 libata: Fix a large collection of DMA mode mismatches
Dave Müller sent a diff for the pata_oldpiix that highlighted a problem
where a lot of the ATA drivers assume dma_mode == 0 means "no DMA" while
the core code uses 0xFF.

This turns out to have other consequences such as code doing >= XFER_UDMA_0
also catching 0xFF as UDMAlots. Fortunately it doesn't generally affect
set_dma_mode, although some drivers call back into their own set mode code
from other points.

Having been through the drivers I've added helpers for using_udma/using_mwdma
dma_enabled so that people don't open code ranges that may change (eg if UDMA8
appears somewhere)

Thanks to David for the initial bits
[and added fix for pata_oldpiix from and signed-off-by Dave Mueller
 <dave.mueller@gmx.ch>  -jg]

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-22 02:27:49 -04:00
Tejun Heo d127ea7b86 libata: restore SControl on detach
Save SControl during probing and restore it on detach.  This prevents
adjustments made by libata drivers to seep into the next driver which
gets attached (be it a libata one or not).

It's not clear whether SControl also needs to be restored on suspend.
The next system to have control (ACPI or kexec'd kernel) would
probably like to see the original SControl value but there's no
guarantee that a link is gonna keep working after SControl is adjusted
without a reset and adding a reset and modified recovery cycle soley
for this is an overkill.  For now, do it only for detach.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-22 02:19:46 -04:00
Tejun Heo 05944bdf6f libata: implement no[hs]rst force params
Implement force params nohrst, nosrst and norst.  This is to work
around reset related problems and ease debugging.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-22 02:07:43 -04:00
Linus Torvalds 61311e1bbc Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  pnp: fix "add acpi:* modalias entries"
  UIO: generic irq handling for some uio platform devices
  UIO: uio_pdrv: fix license specification
  UIO: uio_pdrv: fix memory leak
  block: drop references taken by class_find_device()
  block: fix partial read() of /proc/{partitions,diskstats}
  PM: Remove WARN_ON from device_pm_add
  driver core: add init_name to struct device
  PM: don't skip device PM init when CONFIG_PM_SLEEP isn't set and CONFIG_PM is set
  driver model: anti-oopsing medicine
  dev_printk(): constify the `dev' argument
  drivers/base/driver.c: remove unused to_dev() macro
  Documentation: HOWTO-ja_JP-sync patch
  Japanese translation of Documentation/SubmitChecklist
  kobject: Replace ALL occurrences of '/' with '!' instead of only the first one.
2008-08-21 13:48:37 -07:00
Alan Stern 55151d7dab USB: Defer Set-Interface for suspended devices
This patch (as1128) fixes one of the problems related to the new PM
infrastructure.  We are not allowed to register new child devices
during the middle of a system sleep transition, but unbinding a USB
driver causes the core to automatically install altsetting 0 and
thereby create new endpoint pseudo-devices.

The patch fixes this problem (and the related problem that installing
altsetting 0 will fail if the device is suspended) by deferring the
Set-Interface call until some later time when it is legal and can
succeed.  Possible later times are: when a new driver is being probed
for the interface, and when the interface is being resumed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21 10:26:36 -07:00
Greg Kroah-Hartman c906a48adc driver core: add init_name to struct device
This gives us a way to handle both the bus_id and init_name values being
used for a while during the transition period.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21 10:15:37 -07:00
Jean Delvare bf9ca69fc8 dev_printk(): constify the `dev' argument
Add const markings to dev_name and dev_driver_string to make it clear that
dev_printk doesn't modify dev.  This is a prerequisite to adding more
const markings to other functions make it clearer, which functions can
modify dev and which can't.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21 10:15:36 -07:00
Miao Xie 3c4fbe5e01 nohz: fix wrong event handler after online an offlined cpu
On the tickless system(CONFIG_NO_HZ=y and CONFIG_HIGH_RES_TIMERS=n), after
I made an offlined cpu online, I found this cpu's event handler was
tick_handle_periodic, not tick_nohz_handler.

After debuging, I found this bug was caused by the wrong tick mode.  the
tick mode is not changed to NOHZ_MODE_INACTIVE when the cpu is offline.

This patch fixes this bug.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-21 09:54:06 +02:00
Ian Campbell d847471d06 fbdefio: add set_page_dirty handler to deferred IO FB
Fixes kernel BUG at lib/radix-tree.c:473.

Previously the handler was incidentally provided by tmpfs but this was
removed with:

  commit 14fcc23fdc
  Author: Hugh Dickins <hugh@veritas.com>
  Date:   Mon Jul 28 15:46:19 2008 -0700

    tmpfs: fix kernel BUG in shmem_delete_inode

relying on this behaviour was incorrect in any case and the BUG also
appeared when the device node was on an ext3 filesystem.

v2: override a_ops at open() time rather than mmap() time to minimise
races per AKPM's concerns.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Johannes Weiner <hannes@saeurebad.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Kel Modderman <kel@otaku42.de>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: <stable@kernel.org> [14fcc23fd is in 2.6.25.14 and 2.6.26.1]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:32 -07:00
Nick Piggin 479db0bf40 mm: dirty page tracking race fix
There is a race with dirty page accounting where a page may not properly
be accounted for.

clear_page_dirty_for_io() calls page_mkclean; then TestClearPageDirty.

page_mkclean walks the rmaps for that page, and for each one it cleans and
write protects the pte if it was dirty.  It uses page_check_address to
find the pte.  That function has a shortcut to avoid the ptl if the pte is
not present.  Unfortunately, the pte can be switched to not-present then
back to present by other code while holding the page table lock -- this
should not be a signal for page_mkclean to ignore that pte, because it may
be dirty.

For example, powerpc64's set_pte_at will clear a previously present pte
before setting it to the desired value.  There may also be other code in
core mm or in arch which do similar things.

The consequence of the bug is loss of data integrity due to msync, and
loss of dirty page accounting accuracy.  XIP's __xip_unmap could easily
also be unreliable (depending on the exact XIP locking scheme), which can
lead to data corruption.

Fix this by having an option to always take ptl to check the pte in
page_check_address.

It's possible to retain this optimization for page_referenced and
try_to_unmap.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Jared Hulbert <jaredeh@gmail.com>
Cc: Carsten Otte <cotte@freenet.de>
Cc: Hugh Dickins <hugh@veritas.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:32 -07:00
Ken Chen 2d70b68d42 fix setpriority(PRIO_PGRP) thread iterator breakage
When user calls sys_setpriority(PRIO_PGRP ...) on a NPTL style multi-LWP
process, only the task leader of the process is affected, all other
sibling LWP threads didn't receive the setting.  The problem was that the
iterator used in sys_setpriority() only iteartes over one task for each
process, ignoring all other sibling thread.

Introduce a new macro do_each_pid_thread / while_each_pid_thread to walk
each thread of a process.  Convert 4 call sites in {set/get}priority and
ioprio_{set/get}.

Signed-off-by: Ken Chen <kenchen@google.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:32 -07:00
David Woodhouse e4464facd6 Reserve NFS fileid values for btrfs
Purely cosmetic for now, but we might as well get it merged ASAP.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 13:19:51 -07:00
Linus Torvalds ddd13dc606 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: add acpi_find_root_bridge_handle
  PCI: acpi_pcihp: run _OSC on a root bridge
  x86/PCI: irq and pci_ids patch for Intel Ibex Peak PCHs
  x86/PCI: allow scanning of 255 PCI busses
  x86, pci: detect end_bus_number according to acpi/e820 reserved, v2
  pci: debug extra pci bus resources
  pci: debug extra pci resources range
2008-08-19 13:55:47 -07:00
Linus Torvalds 4309e09242 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
  pkt_sched: Prevent livelock in TX queue running.
  Revert "pkt_sched: Add BH protection for qdisc_stab_lock."
  Revert "pkt_sched: Protect gen estimators under est_lock."
  pkt_sched: remove bogus block (cleanup)
  nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization
  netfilter: ctnetlink: sleepable allocation with spin lock bh
  netfilter: ctnetlink: fix sleep in read-side lock section
  netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks
  netfilter: ipt_addrtype: Fix matching of inverted destination address type
  dccp: Fix panic caused by too early termination of retransmission mechanism
  pkt_sched: Don't hold qdisc lock over qdisc_destroy().
  pkt_sched: Add lockdep annotation for qdisc locks
  pkt_sched: Never schedule non-root qdiscs.
  removed unused #include <version.h>
  rt2x00: Fix txdone_entry_desc_flags
  b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306
  mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
  p54u: reset skb's data/tail pointer on requeue
  p54: move p54_vdcf_init to the right place.
  iwlwifi: fix printk newlines
  ...
2008-08-19 09:59:02 -07:00
Linus Torvalds b689e83961 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ata: add missing ATA_* defines
  ata: add missing ATA_CMD_* defines
  ata: add missing ATA_ID_* defines (take 2)
  sgiioc4: fixup message on resource allocation failure
  ide-cd: use bcd2bin/bin2bcd
  cdrom: handle TOC
  gdrom: add dummy audio_ioctl handler
  viocd: add dummy audio ioctl handler
  cleanup powerpc/include/asm/ide.h
  drivers/ide/pci/: use __devexit_p()
2008-08-18 17:40:13 -07:00
Jiri Slaby 056c58e8eb PCI: add acpi_find_root_bridge_handle
Consolidate finding of a root bridge and getting its handle to the one
inline function. It's cut & pasted on multiple places. Use this new
inline in those.

Cc: kristen.c.accardi@intel.com
Acked-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-18 13:48:04 -07:00
Bartlomiej Zolnierkiewicz b59116205c ata: add missing ATA_* defines
Add missing ATA_* defines to <linux/ata.h>.  Also add
ATAPI_{LFS,EOM,ILI,IO,CODE} defines while at it.

Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-18 21:40:05 +02:00
Bartlomiej Zolnierkiewicz 476d9894dd ata: add missing ATA_CMD_* defines
Add missing ATA_CMD_* defines to <linux/ata.h>.  Also add
ATA_EXABYTE_ENABLE_NEST, SETFEATURES_AAM_* and ATA_SMART_*
defines while at it.

Partially based on earlier work by Chris Wedgwood.

Acked-by: Chris Wedgwood <cw@f00f.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-18 21:40:05 +02:00
Bartlomiej Zolnierkiewicz 37014c6407 ata: add missing ATA_ID_* defines (take 2)
Add missing ATA_ID_* defines and update {ata,atapi}_*()
inlines accordingly.  The currently unused defines are
needed for the forthcoming drivers/ide/ changes.

v2:
Add ATA_ID_SPG.

Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-18 21:40:05 +02:00
Alexander Beregalov 5e186b57e7 security.h: fix build failure
security.h: fix build failure

include/linux/security.h: In function 'security_ptrace_traceme':
include/linux/security.h:1760: error: 'parent' undeclared (first use in this function)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: James Morris <jmorris@namei.org>
2008-08-17 22:47:30 +10:00
David Woodhouse 5e6b83ed8c Fix header export of videodev2.h, ivtv.h, ivtvfb.h
The exported copy of videodev2.h contains this line:

	#define #include <sys/time.h>

This is because for some reason it defines __user for itself -- despite
the fact that we remove all instances of __user when exporting headers.
_All_ pointers in userspace are user pointers. Fix it by removing the
unnecessary '#define __user' from the file.

The new headers ivtv.h and ivtvfb.h would have the same problem... if
whoever put them there had actually remembered to add them to the Kbuild
file while he was at it. Fix those too, and export them as was
presumably intended.

Note that includes of <linux/compiler.h> are also stripped by the header
export process, so those don't need to be conditional.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-16 16:46:57 -07:00
Hugh Dickins 605d9288b3 mm: VM_flags comment fixes
Try to comment away a little of the confusion between mm's vm_area_struct
vm_flags and vmalloc's vm_struct flags: based on an idea by Ulrich Drepper.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-16 16:45:56 -07:00
Rusty Russell db543c1f97 net: skb_copy_datagram_from_iovec()
There's an skb_copy_datagram_iovec() to copy out of a paged skb, but
nothing the other way around (because we don't do that).

We want to allocate big skbs in tun.c, so let's add the function.
It's a carbon copy of skb_copy_datagram_iovec() with enough changes to
be annoying.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:30 -07:00
Mark McLoughlin e3b9955697 tun: TUNGETIFF interface to query name and flags
Add a TUNGETIFF interface so that userspace can query a
tun/tap descriptor for its name and flags.

This is needed because it is common for one app to create
a tap interface, exec another app and pass it the file
descriptor for the interface. Without TUNGETIFF the spawned
app has no way of detecting wheter the interface has e.g.
IFF_VNET_HDR set.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15 19:52:19 -07:00
Linus Torvalds 71ef2a46fc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  security: Fix setting of PF_SUPERPRIV by __capable()
2008-08-15 15:32:13 -07:00
Alan Cox 8c9a9dd0fa tty: remove resize window special case
This moves it to being a tty operation. That removes special cases and now
also means that resize can be picked up by um and other non vt consoles
which may have a resize operation.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 10:34:07 -07:00
Seth Heasley 89499759dc x86/PCI: irq and pci_ids patch for Intel Ibex Peak PCHs
This patch adds the Intel Ibex Peak (PCH) LPC and SMBus Controller DeviceIDs.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-15 09:15:47 -07:00
Dave Chinner be4de35263 completions: uninline try_wait_for_completion and completion_done
m68k fails to build with these functions inlined in completion.h.  Move
them out of line into sched.c and export them to avoid this problem.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:44 -07:00
Huang Ying 9bdeb7b5d3 kexec jump: __ftrace_enabled_save/restore
Add __ftrace_enabled_save/restore, used to disable ftrace for a while.
Now, this is used by kexec jump, which need a version without lock, for
general situation, a locked version should be used.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:42 -07:00
Huang Ying ca195b7f6d kexec jump: remove duplication of kexec_restart_prepare()
Call kernel_restart_prepare() in kernel_kexec() instead of duplicating the
code.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:42 -07:00
Huang Ying 163f6876f5 kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE
Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control
page is used for not only code on some platform.  For example in kexec
jump, it is used for data and stack too.

[akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion]
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:42 -07:00
Marcin Slusarz ce289e8972 suspend: fix section mismatch warning - register_nosave_region
WARNING: vmlinux.o(.text+0xe684): Section mismatch in reference from the function register_nosave_region() to the function .init.text:__register_nosave_region()
  The function register_nosave_region() references
  the function __init __register_nosave_region().
  This is often because register_nosave_region lacks a __init
  annotation or the annotation of __register_nosave_region is wrong.

register_nosave_region calls __init function and is called only from
__init functions

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:42 -07:00
David Howells 5cd9c58fbe security: Fix setting of PF_SUPERPRIV by __capable()
Fix the setting of PF_SUPERPRIV by __capable() as it could corrupt the flags
the target process if that is not the current process and it is trying to
change its own flags in a different way at the same time.

__capable() is using neither atomic ops nor locking to protect t->flags.  This
patch removes __capable() and introduces has_capability() that doesn't set
PF_SUPERPRIV on the process being queried.

This patch further splits security_ptrace() in two:

 (1) security_ptrace_may_access().  This passes judgement on whether one
     process may access another only (PTRACE_MODE_ATTACH for ptrace() and
     PTRACE_MODE_READ for /proc), and takes a pointer to the child process.
     current is the parent.

 (2) security_ptrace_traceme().  This passes judgement on PTRACE_TRACEME only,
     and takes only a pointer to the parent process.  current is the child.

     In Smack and commoncap, this uses has_capability() to determine whether
     the parent will be permitted to use PTRACE_ATTACH if normal checks fail.
     This does not set PF_SUPERPRIV.

Two of the instances of __capable() actually only act on current, and so have
been changed to calls to capable().

Of the places that were using __capable():

 (1) The OOM killer calls __capable() thrice when weighing the killability of a
     process.  All of these now use has_capability().

 (2) cap_ptrace() and smack_ptrace() were using __capable() to check to see
     whether the parent was allowed to trace any process.  As mentioned above,
     these have been split.  For PTRACE_ATTACH and /proc, capable() is now
     used, and for PTRACE_TRACEME, has_capability() is used.

 (3) cap_safe_nice() only ever saw current, so now uses capable().

 (4) smack_setprocattr() rejected accesses to tasks other than current just
     after calling __capable(), so the order of these two tests have been
     switched and capable() is used instead.

 (5) In smack_file_send_sigiotask(), we need to allow privileged processes to
     receive SIGIO on files they're manipulating.

 (6) In smack_task_wait(), we let a process wait for a privileged process,
     whether or not the process doing the waiting is privileged.

I've tested this with the LTP SELinux and syscalls testscripts.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: Andrew G. Morgan <morgan@kernel.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Morris <jmorris@namei.org>
2008-08-14 22:59:43 +10:00
Linus Torvalds b635acec48 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (47 commits)
  usb: musb: pass configuration specifics via pdata
  usb: musb: fix hanging when rmmod gadget driver
  USB: Add MUSB and TUSB support
  USB: serial: remove CONFIG_USB_DEBUG from sierra and option drivers
  USB: Add vendor/product id of ZTE MF628 to option
  USB: quirk PLL power down mode
  USB: omap_udc: fix compilation with debug enabled
  usb: cdc-acm: drain writes on close
  usb: cdc-acm: stop dropping tx buffers
  usb: cdc-acm: bugfix release()
  usb gadget: issue notifications from ACM function
  usb gadget: remove needless struct members
  USB: sh: r8a66597-hcd: fix disconnect regression
  USB: isp1301: fix compilation
  USB: fix compiler warning fix
  usb-storage: unusual_devs entry for Nokia 5300
  USB: cdc-acm.c: Fix compile warnings
  USB: BandRich BandLuxe C150/C250 HSPA Data Card Driver
  USB: ftdi_sio: add support for PHI Fisco data cable (FT232BM based, VID/PID 0403:e40b)
  usb: isp1760: don't be noisy about short packets.
  ...
2008-08-13 20:50:10 -07:00
Linus Torvalds 9921b256bb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  CRED: Introduce credential access wrappers
2008-08-13 20:49:37 -07:00
Linus Torvalds 7a49efae71 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
  netns: Fix crash by making igmp per namespace
  bnx2x: Version update
  bnx2x: Checkpatch compliance
  bnx2x: Spelling mistakes
  bnx2x: Minor code improvements
  bnx2x: Driver info
  bnx2x: 1G LED does not turn off
  bnx2x: 8073 PHY changes
  bnx2x: Change GPIO for any port
  bnx2x: Pause settings
  bnx2x: Link order with external PHY
  bnx2x: No LRO without Rx checksum
  bnx2x: Wrong structure size
  bnx2x: WoL capability
  bnx2x: Clearing MAC addresses filters
  bnx2x: Delay in while loops
  bnx2x: PBA Table Page Alignment Workaround
  bnx2x: Self-test false positive
  bnx2x: Memory allocation
  bnx2x: HW attention lock
  ...
2008-08-13 20:48:46 -07:00
Felipe Balbi ca6d1b1333 usb: musb: pass configuration specifics via pdata
Use platform_data to pass musb configuration-specific
details to musb driver.

This patch will prevent that other platforms selecting
HAVE_CLK and enabling musb won't break tree building.

The other parts of it will come when linux-omap merge
up more omap2/3 board-files.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:33:01 -07:00
Felipe Balbi 550a7375fe USB: Add MUSB and TUSB support
This patch adds support for MUSB and TUSB controllers
integrated into omap2430 and davinci. It also adds support
for external tusb6010 controller.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:33:00 -07:00
Alan Stern 0282b7f2a8 usb-serial: don't release unregistered minors
This patch (as1121) fixes a bug in the USB serial core.  When a device
is unregistered, the core will give back its minors -- even if the
device hasn't been assigned any!

The patch reserves the highest minor value (255) to mean that no minor
was assigned.  It also removes some dead code and does a small style
fixup.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:50 -07:00
Alan Stern f4f4d58734 USB: add missing kerneldoc line for "needs_binding"
This patch (as1117) adds a kerneldoc line for the "needs_binding"
field in struct usb_interface.  It was accidentally omitted when the
field was added.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:49 -07:00
David Howells 9e2b2dc413 CRED: Introduce credential access wrappers
The patches that are intended to introduce copy-on-write credentials for 2.6.28
require abstraction of access to some fields of the task structure,
particularly for the case of one task accessing another's credentials where RCU
will have to be observed.

Introduced here are trivial no-op versions of the desired accessors for current
and other tasks so that other subsystems can start to be converted over more
easily.

Wrappers are introduced into a new header (linux/cred.h) for UID/GID,
EUID/EGID, SUID/SGID, FSUID/FSGID, cap_effective and current's subscribed
user_struct.  These wrappers are macros because the ordering between header
files mitigates against making them inline functions.

linux/cred.h is #included from linux/sched.h.

Further, XFS is modified such that it no longer defines and uses parameterised
versions of current_fs[ug]id(), thus getting rid of the namespace collision
otherwise incurred.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2008-08-14 09:35:23 +10:00
Linus Torvalds 9ea319b616 Merge git://oss.sgi.com:8090/xfs/linux-2.6
* git://oss.sgi.com:8090/xfs/linux-2.6: (45 commits)
  [XFS] Fix use after free in xfs_log_done().
  [XFS] Make xfs_bmap_*_count_leaves void.
  [XFS] Use KM_NOFS for debug trace buffers
  [XFS] use KM_MAYFAIL in xfs_mountfs
  [XFS] refactor xfs_mount_free
  [XFS] don't call xfs_freesb from xfs_unmountfs
  [XFS] xfs_unmountfs should return void
  [XFS] cleanup xfs_mountfs
  [XFS] move root inode IRELE into xfs_unmountfs
  [XFS] stop using file_update_time
  [XFS] optimize xfs_ichgtime
  [XFS] update timestamp in xfs_ialloc manually
  [XFS] remove the sema_t from XFS.
  [XFS] replace dquot flush semaphore with a completion
  [XFS] replace inode flush semaphore with a completion
  [XFS] extend completions to provide XFS object flush requirements
  [XFS] replace the XFS buf iodone semaphore with a completion
  [XFS] clean up stale references to semaphores
  [XFS] use get_unaligned_* helpers
  [XFS] Fix compile failure in xfs_buf_trace()
  ...
2008-08-13 15:17:49 -07:00
Tom Tucker 24b8b44780 svcrdma: Fix race between svc_rdma_recvfrom thread and the dto_tasklet
RDMA_READ completions are kept on a separate queue from the general
I/O request queue. Since a separate lock is used to protect the RDMA_READ
completion queue, a race exists between the dto_tasklet and the
svc_rdma_recvfrom thread where the dto_tasklet sets the XPT_DATA
bit and adds I/O to the read-completion queue. Concurrently, the
recvfrom thread checks the generic queue, finds it empty and resets
the XPT_DATA bit. A subsequent svc_xprt_enqueue will fail to enqueue
the transport for I/O and cause the transport to "stall".

The fix is to protect both lists with the same lock and set the XPT_DATA
bit with this lock held.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2008-08-13 16:57:31 -04:00
David Chinner 39d2f1ab2a [XFS] extend completions to provide XFS object flush requirements
XFS object flushing doesn't quite match existing completion semantics.  It
mixed exclusive access with completion.  That is, we need to mark an object as
being flushed before flushing it to disk, and then block any other attempt to
flush it until the completion occurs.  We do this but adding an extra count to
the completion before we start using them.  However, we still need to
determine if there is a completion in progress, and allow no-blocking attempts
fo completions to decrement the count.

To do this we introduce:

int try_wait_for_completion(struct completion *x)
	returns a failure status if done == 0, otherwise decrements done
	to zero and returns a "started" status. This is provided
	to allow counted completions to begin safely while holding
	object locks in inverted order.

int completion_done(struct completion *x)
	returns 1 if there is no waiter, 0 if there is a waiter
	(i.e. a completion in progress).

This replaces the use of semaphores for providing this exclusion
and completion mechanism.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31816a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-08-13 16:40:43 +10:00
Bernhard Walle 31bad9246b firmware/memmap: cleanup
Various cleanup the drivers/firmware/memmap (after review by AKPM):

    - fix kdoc to conform to the standard
    - move kdoc from header to implementation files
    - remove superfluous WARN_ON() after kmalloc()
    - WARN_ON(x); if (!x) -> if(!WARN_ON(x))
    - improve some comments

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:31 -07:00
Harvey Harrison bc2aa80e18 byteorder: add include/linux/byteorder.h to define endian helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:30 -07:00
Harvey Harrison 40c9f22210 byteorder: add a new include/linux/swab.h to define byteswapping functions
Collect the implementations from include/linux/byteorder/swab.h, swabb.h
in swab.h

The functionality provided covers:
u16 swab16(u16 val) - return a byteswapped 16 bit value
u32 swab32(u32 val) - return a byteswapped 32 bit value
u64 swab64(u64 val) - return a byteswapped 64 bit value
u32 swahw32(u32 val) - return a wordswapped 32 bit value
u32 swahb32(u32 val) - return a high/low byteswapped 32 bit value

Similar to above, but return swapped value from a naturally-aligned pointer
u16 swab16p(u16 *p)
u32 swab32p(u32 *p)
u64 swab64p(u64 *p)
u32 swahw32p(u32 *p)
u32 swahb32p(u32 *p)

Similar to above, but swap the value in-place (in-situ)
void swab16s(u16 *p)
void swab32s(u32 *p)
void swab64s(u64 *p)
void swahw32s(u32 *p)
void swahb32s(u32 *p)

Arches can override any of these with an optimized version by defining an
inline in their asm/byteorder.h (example given for swab16()):

u16 __arch_swab16() {}
 #define __arch_swab16 __arch_swab16

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:30 -07:00
Alexey Dobriyan 50ac2d694f seq_file: add seq_cpumask(), seq_nodemask()
Short enough reads from /proc/irq/*/smp_affinity return -EINVAL for no
good reason.

This became noticed with NR_CPUS=4096 patches, when length of printed
representation of cpumask becase 1152, but cat(1) continued to read with
1024-byte chunks.  bitmap_scnprintf() in good faith fills buffer, returns
1023, check returns -EINVAL.

Fix it by switching to seq_file, so handler will just fill buffer and
doesn't care about offsets, length, filling EOF and all this crap.

For that add seq_bitmap(), and wrappers around it -- seq_cpumask() and
seq_nodemask().

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Paul Jackson <pj@sgi.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:30 -07:00
Uwe Kleine-König 070cb06593 move kernel-doc comment for might_sleep directly before its defining block
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:29 -07:00
Jean Delvare 1054635532 matrox maven: convert to a new-style i2c driver
The legacy i2c model is going away soon, so switch to the new model.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Petr Vandrovec <VANDROVE@vc.cvut.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:29 -07:00
Jan Beulich 74768ed833 page allocator: use no-panic variant of alloc_bootmem() in alloc_large_system_hash()
..  since a failed allocation is being (initially) handled gracefully, and
panic()-ed upon failure explicitly in the function if retries with smaller
sizes failed.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12 16:07:27 -07:00
Linus Torvalds 1c89ac5501 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  fix spinlock recursion in hvc_console
  stop_machine: remove unused variable
  modules: extend initcall_debug functionality to the module loader
  export virtio_rng.h
  lguest: use get_user_pages_fast() instead of get_user_pages()
  mm: Make generic weak get_user_pages_fast and EXPORT_GPL it
  lguest: don't set MAC address for guest unless specified
2008-08-12 08:40:19 -07:00
Linus Torvalds 88fa08f67b Merge branch 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6
* 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
  agp: fix SIS 5591/5592 wrong PCI id
  intel/agp: rewrite GTT on resume
  agp: use dev_printk when possible
  amd64-agp: run fallback when no bridges found, not when driver registration fails
  intel_agp: official name for GM45 chipset
2008-08-12 08:28:32 -07:00
Arjan van de Ven 59f9415ffb modules: extend initcall_debug functionality to the module loader
The kernel has this really nice facility where if you put "initcall_debug"
on the kernel commandline, it'll print which function it's going to
execute just before calling an initcall, and then after the call completes
it will

1) print if it had an error code

2) checks for a few simple bugs (like leaving irqs off)
and

3) print how long the init call took in milliseconds.

While trying to optimize the boot speed of my laptop, I have been loving
number 3 to figure out what to optimize...  ...  and then I wished that
the same thing was done for module loading.

This patch makes the module loader use this exact same functionality; it's
a logical extension in my view (since modules are just sort of late
binding initcalls anyway) and so far I've found it quite useful in finding
where things are too slow in my boot.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-12 17:52:54 +10:00
Christian Borntraeger 4bceba417a export virtio_rng.h
Hello Rusty,

The entropy device was added after we exported all virtio headers. This
patch adds virtio_rng.h to the exportable userspace headers.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-12 17:52:54 +10:00
Rusty Russell 912985dce4 mm: Make generic weak get_user_pages_fast and EXPORT_GPL it
Out of line get_user_pages_fast fallback implementation, make it a weak
symbol, get rid of CONFIG_HAVE_GET_USER_PAGES_FAST.

Export the symbol to modules so lguest can use it.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-08-12 17:52:53 +10:00
Gerrit Renker 987c402ac3 skbuff: Code readability NiT
Inserting a space between the `-' improved the C readability (some languages
allow hyphens within functions and variable names, which is confusing).

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-11 18:17:17 -07:00
Keith Packard a8c84df9f7 intel/agp: rewrite GTT on resume
On my Intel chipset (965GM), the GTT is entirely erased across
suspend/resume.  This patch simply re-plays the current mapping at resume
time to restore the table.=20

I noticed this once I started relying on persistent GTT mappings across VT
switch in our GEM work -- the old X server and DRM code carefully unbind
all memory from the GTT on VT switch, but GEM does not bother.

I placed the list management and rewrite code in the generic layer on the
assumption that it will be needed on other hardware, but I did not add the
rewrite call to anything other than the Intel resume function.

Keep a list of current GATT mappings.  At resume time, rewrite them into
the GATT.  This is needed on Intel (at least) as the entire GATT is
cleared across suspend/resume.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Keith Packard <keithp@keithp.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-08-12 10:13:38 +10:00
Linus Torvalds 1ea2950884 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched, cpu hotplug: fix set_cpus_allowed() use in hotplug callbacks
  sched: fix mysql+oltp regression
  sched_clock: delay using sched_clock()
  sched clock: couple local and remote clocks
  sched clock: simplify __update_sched_clock()
  sched: eliminate scd->prev_raw
  sched clock: clean up sched_clock_cpu()
  sched clock: revert various sched_clock() changes
  sched: move sched_clock before first use
  sched: test runtime rather than period in global_rt_runtime()
  sched: fix SCHED_HRTICK dependency
  sched: fix warning in hrtick_start_fair()
2008-08-11 16:46:31 -07:00
Linus Torvalds 9b4d0bab32 Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: fix debug_lock_alloc
  lockdep: increase MAX_LOCKDEP_KEYS
  generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask()
  lockdep: fix overflow in the hlock shrinkage code
  lockdep: rename map_[acquire|release]() => lock_map_[acquire|release]()
  lockdep: handle chains involving classes defined in modules
  mm: fix mm_take_all_locks() locking order
  lockdep: annotate mm_take_all_locks()
  lockdep: spin_lock_nest_lock()
  lockdep: lock protection locks
  lockdep: map_acquire
  lockdep: shrink held_lock structure
  lockdep: re-annotate scheduler runqueues
  lockdep: lock_set_subclass - reset a held lock's subclass
  lockdep: change scheduler annotation
  debug_locks: set oops_in_progress if we will log messages.
  lockdep: fix combinatorial explosion in lock subgraph traversal
2008-08-11 16:45:46 -07:00
Ingo Molnar 23a0ee908c Merge branch 'core/locking' into core/urgent 2008-08-12 00:11:49 +02:00
Linus Torvalds 10fec20ef5 Merge branch 'for-linus' of git://git.o-hand.com/linux-mfd
* 'for-linus' of git://git.o-hand.com/linux-mfd:
  mfd: tc6393 cleanup and update
  mfd: have TMIO drivers and subdevices depend on ARM
  mfd: TMIO MMC driver
  mfd: driver for the TMIO NAND controller
  mfd: t7l66 MMC platform data
  mfd: tc6387 MMC platform data
  mfd: Fix 7l66 and 6387 according to the new mfd-core API
  mfd: Fix tc6393 according to the new tmio.h
  mfd: driver for the TC6387XB TMIO controller.
  mfd: driver for the T7L66XB TMIO SoC
  mfd: TMIO MMC structures and accessors.
2008-08-11 10:44:43 -07:00
Linus Torvalds e2205a156f Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Remove include/linux/harrier_defs.h
  powerpc: Do not ignore arch/powerpc/include
  powerpc: Delete completed "ppc removal" task from feature removal file
  powerpc/mm: Fix attribute confusion with htab_bolt_mapping()
  powerpc/pci: Don't keep ISA memory hole resources in the tree
  powerpc: Zero fill the return values of rtas argument buffer
  powerpc/4xx: Update defconfig files for 2.6.27-rc1
  powerpc/44x: Incorrect NOR offset in Warp DTS
  powerpc/44x: Warp DTS changes for board updates
  powerpc/4xx: Cleanup Warp for i2c driver changes.
  powerpc/44x: Adjust warp-nand resource end address
2008-08-11 10:40:28 -07:00
Linus Torvalds a7ef6a40f7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: Limit VPD length for Broadcom 5708S
  PCI PM: Export pci_pme_active to drivers
  PCI: remove duplicate symbol from pci_ids.h
  PCI: check the return value of device_create_bin_file() in pci_create_bus()
  PCI: fully restore MSI state at resume time
  DMA: make dma-coherent.c documentation kdoc-friendly
  PCI: make pci_register_driver() a macro
  PCI: add Broadcom 5708S to VPD length quirk
2008-08-11 10:38:36 -07:00
Ingo Molnar e5f363e358 lockdep: increase MAX_LOCKDEP_KEYS
certain configs produce:

 [   70.076229] BUG: MAX_LOCKDEP_KEYS too low!
 [   70.080230] turning off the locking correctness validator.

tune them up.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 15:25:07 +02:00
Paul Mackerras 13fa00a878 powerpc: Remove include/linux/harrier_defs.h
It was only used by code in arch/ppc, and arch/ppc is gone, so remove
the unused harrier_defs.h as well.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-11 21:00:12 +10:00
Peter Zijlstra b42e737e57 lockdep: fix overflow in the hlock shrinkage code
There is a overflow by 1 case in the new shrunken hlock code.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 12:34:42 +02:00
Ingo Molnar 3295f0ef9f lockdep: rename map_[acquire|release]() => lock_map_[acquire|release]()
the names were too generic:

 drivers/uio/uio.c:87: error: expected identifier or '(' before 'do'
 drivers/uio/uio.c:87: error: expected identifier or '(' before 'while'
 drivers/uio/uio.c:113: error: 'map_release' undeclared here (not in a function)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 10:30:30 +02:00
Peter Zijlstra b7d39aff91 lockdep: spin_lock_nest_lock()
Expose the new lock protection lock.

This can be used to annotate places where we take multiple locks of the
same class and avoid deadlocks by always taking another (top-level) lock
first.

NOTE: we're still bound to the MAX_LOCK_DEPTH (48) limit.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 09:30:24 +02:00
Peter Zijlstra 7531e2f34d lockdep: lock protection locks
On Fri, 2008-08-01 at 16:26 -0700, Linus Torvalds wrote:

> On Fri, 1 Aug 2008, David Miller wrote:
> >
> > Taking more than a few locks of the same class at once is bad
> > news and it's better to find an alternative method.
>
> It's not always wrong.
>
> If you can guarantee that anybody that takes more than one lock of a
> particular class will always take a single top-level lock _first_, then
> that's all good. You can obviously screw up and take the same lock _twice_
> (which will deadlock), but at least you cannot get into ABBA situations.
>
> So maybe the right thing to do is to just teach lockdep about "lock
> protection locks". That would have solved the multi-queue issues for
> networking too - all the actual network drivers would still have taken
> just their single queue lock, but the one case that needs to take all of
> them would have taken a separate top-level lock first.
>
> Never mind that the multi-queue locks were always taken in the same order:
> it's never wrong to just have some top-level serialization, and anybody
> who needs to take <n> locks might as well do <n+1>, because they sure as
> hell aren't going to be on _any_ fastpaths.
>
> So the simplest solution really sounds like just teaching lockdep about
> that one special case. It's not "nesting" exactly, although it's obviously
> related to it.

Do as Linus suggested. The lock protection lock is called nest_lock.

Note that we still have the MAX_LOCK_DEPTH (48) limit to consider, so anything
that spills that it still up shit creek.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 09:30:24 +02:00
Peter Zijlstra 4f3e7524b2 lockdep: map_acquire
Most the free-standing lock_acquire() usages look remarkably similar, sweep
them into a new helper.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 09:30:23 +02:00
Dave Jones f82b217e35 lockdep: shrink held_lock structure
struct held_lock {
        u64                        prev_chain_key;       /*     0     8 */
        struct lock_class *        class;                /*     8     8 */
        long unsigned int          acquire_ip;           /*    16     8 */
        struct lockdep_map *       instance;             /*    24     8 */
        int                        irq_context;          /*    32     4 */
        int                        trylock;              /*    36     4 */
        int                        read;                 /*    40     4 */
        int                        check;                /*    44     4 */
        int                        hardirqs_off;         /*    48     4 */

        /* size: 56, cachelines: 1 */
        /* padding: 4 */
        /* last cacheline: 56 bytes */
};

struct held_lock {
        u64                        prev_chain_key;       /*     0     8 */
        long unsigned int          acquire_ip;           /*     8     8 */
        struct lockdep_map *       instance;             /*    16     8 */
        unsigned int               class_idx:11;         /*    24:21  4 */
        unsigned int               irq_context:2;        /*    24:19  4 */
        unsigned int               trylock:1;            /*    24:18  4 */
        unsigned int               read:2;               /*    24:16  4 */
        unsigned int               check:2;              /*    24:14  4 */
        unsigned int               hardirqs_off:1;       /*    24:13  4 */

        /* size: 32, cachelines: 1 */
        /* padding: 4 */
        /* bit_padding: 13 bits */
        /* last cacheline: 32 bytes */
};

[mingo@elte.hu: shrunk hlock->class too]
[peterz@infradead.org: fixup bit sizes]
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2008-08-11 09:30:23 +02:00
Peter Zijlstra 64aa348edc lockdep: lock_set_subclass - reset a held lock's subclass
this can be used to reset a held lock's subclass, for arbitrary-depth
iterated data structures such as trees or lists which have per-node
locks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 09:30:21 +02:00
Ingo Molnar cf206bffbb Merge branch 'linus' into sched/clock 2008-08-11 08:59:21 +02:00
Peter Zijlstra c1955a3d47 sched_clock: delay using sched_clock()
Some arch's can't handle sched_clock() being called too early - delay
this until sched_clock_init() has been called.

Reported-by: Bill Gatliff <bgat@billgatliff.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
CC: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11 08:59:03 +02:00
Ian Molton 25d6cbd840 mfd: tc6393 cleanup and update
This patchset cleans up the TC6393XB support.

* Add provision for the MMC subdevice
* Disable / enable clocks on suspend / resume
* Remove fragments of badly merged code (eg. linux/fb include etc.)
* Use a device specific clock name to break dependancy on ARM/PXA2XX
* Drop unnecessary resource names
* Switch to tmio_io* accessors

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 23:32:07 +02:00
Ian Molton cbdfb42639 mfd: driver for the TC6387XB TMIO controller.
This patch adds support for the TC6387XB. Unlike other TMIO devices this one
has only one subdevice and no interrupt mux, however using the MFD framework
allows it to share the TMIO MMC driver.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 20:09:55 +02:00
Ian Molton 1f192015ca mfd: driver for the T7L66XB TMIO SoC
This patchset provides support for the core functinality of the T7L66XB
SoC from Toshiba. Supported in this patchset is the IRQ MUX, MMC controller
and NAND flash controller.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 20:09:50 +02:00
Ian Molton d3a2f71853 mfd: TMIO MMC structures and accessors.
Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 20:09:43 +02:00
Linus Torvalds 4fbb71597a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  SLUB: dynamic per-cache MIN_PARTIAL
  mm: unexport ksize
2008-08-09 16:21:33 -07:00
Randy Dunlap 6724cce8fb list.h: fix fatal kernel-doc error
Fix fatal multi-line kernel-doc error in list.h:
function short description must be on one line.

Error(linux-2.6.27-rc2-git3//include/linux/list.h:318): duplicate section name 'Description'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-08 16:17:16 -07:00
Linus Torvalds 49b75b87ce Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB
  [ARM] 5166/1: magician: add MAINTAINERS entry
  [ARM] fix pnx4008 build errors
  [ARM] Fix SMP booting with non-zero PHYS_OFFSET
  [ARM] 5185/1: Fix spi num_chipselect for lubbock
  [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
  [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include
  [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
  [ARM] Eliminate useless includes of asm/mach-types.h
  [ARM] Fix circular include dependency with IRQ headers
  avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>
  avr32: Introduce arch/avr32/mach-*/include/mach
  avr32: Move include/asm-avr32 to arch/avr32/include/asm
  [ARM] sa1100_wdt: use reset_status to remember watchdog reset status
  [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage
  [ARM] pxa: introduce reset.h for reset specific header information
2008-08-08 11:38:42 -07:00
Russell King 097d9eb537 Merge Linus' latest into master
Conflicts:

	drivers/watchdog/at91rm9200_wdt.c
	drivers/watchdog/davinci_wdt.c
	drivers/watchdog/ep93xx_wdt.c
	drivers/watchdog/ixp2000_wdt.c
	drivers/watchdog/ixp4xx_wdt.c
	drivers/watchdog/ks8695_wdt.c
	drivers/watchdog/omap_wdt.c
	drivers/watchdog/pnx4008_wdt.c
	drivers/watchdog/sa1100_wdt.c
	drivers/watchdog/wdt285.c
2008-08-08 19:18:18 +01:00
Linus Torvalds f2d7499be1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (99 commits)
  pkt_sched: Fix actions referencing
  bnx2x: fix logical op
  tcp: (whitespace only) fix confusing indentation
  pkt_sched: Fix qdisc config when link is down.
  [Bluetooth] Add full quirk implementation for btusb driver
  [Bluetooth] Removal of unnecessary ignore module parameter
  [Bluetooth] Add parameters to control BNEP header compression
  ath9k: Revamp wireless mode usage
  ath9k: More unused macros
  ath9k: Remove a few unused macros and fix indentation
  ath9k: Use mac80211's band macros and remove enum hal_freq_band
  ath9k: Remove redundant data structure ath9k_txq_info
  ath9k: Cleanup data structures related to HW capabilities
  ath9k: work around gcc ICEs
  ath9k: Add new Atheros IEEE 802.11n driver
  ath5k: remove Atheros 11n devices from supported list
  list.h: add list_cut_position()
  list.h: Add list_splice_tail() and list_splice_tail_init()
  p54: swap short slot time dcf values
  rt2x00: Block all unsupported modes
  ...
2008-08-08 11:15:23 -07:00
Russell King 2727f226a6 [ARM] fix pnx4008 build errors
include/linux/i2c-pnx.h was missed when moving the include files.
Fix it now; it doesn't really need to include mach/i2c.h at all.
Successfully build tested with pnx4008_defconfig, which had
failed in linux-next.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-08 15:13:27 +01:00
Linus Torvalds aeee90dfa0 Merge branch 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace
* 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace:
  tracehook: fix CLONE_PTRACE
2008-08-07 18:14:24 -07:00
Linus Torvalds 273b257839 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mad: Test ib_create_send_mad() return with IS_ERR(), not == NULL
  IB/mlx4: Allow 4K messages for UD QPs
  mlx4_core: Add ethernet fields to CQE struct
  IB/ipath: Fix printk format warnings
  RDMA/cxgb3: Fix deadlock initializing iw_cxgb3 device
  RDMA/cxgb3: Fix up MW access rights
  RDMA/cxgb3: Fix QP capabilities
  RDMA/cma: Remove padding arrays by using struct sockaddr_storage
  IB/ipath: Use unsigned long for irq flags
  IPoIB/cm: Set correct SG list in ipoib_cm_init_rx_wr()
2008-08-07 18:14:07 -07:00
Roland McGrath 5861bbfcc1 tracehook: fix CLONE_PTRACE
In the change in commit 09a05394fe, I
overlooked two nits in the logic and this broke using CLONE_PTRACE
when PTRACE_O_TRACE* are not being used.

A parent that is itself traced at all but not using PTRACE_O_TRACE*,
using CLONE_PTRACE would have its new child fail to be traced.

A parent that is not itself traced at all that uses CLONE_PTRACE
(which should be a no-op in this case) would confuse the bookkeeping
and lead to a crash at exit time.

This restores the missing checks and fixes both failure modes.

Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Roland McGrath <roland@redhat.com>
2008-08-07 17:18:47 -07:00
Rafael J. Wysocki 5a6c9b60b4 PCI PM: Export pci_pme_active to drivers
Export pci_pme_active() to drivers, so that they can clear the
PME_status bit and disable PME# for their devices without involving
ACPI.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-07 15:33:36 -07:00
akpm@linux-foundation.org 7bed523a95 PCI: remove duplicate symbol from pci_ids.h
pci.ids.h: remove a duplicated symbol

Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Grant Coady <gcoady.lk@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-07 09:49:57 -07:00
Andrew Morton bba8116586 PCI: make pci_register_driver() a macro
alpha:

CC [M]  drivers/usb/gadget/u_ether.o
In file included from include/asm/dma-mapping.h:7,
                 from include/linux/dma-mapping.h:52,
                 from include/linux/dmaengine.h:29,
                 from include/linux/skbuff.h:29,
                 from include/linux/if_ether.h:114,
                 from include/linux/etherdevice.h:27,
                 from drivers/usb/gadget/u_ether.c:29:
include/linux/pci.h: In function 'pci_register_driver':
include/linux/pci.h:673: error: 'KBUILD_MODNAME' undeclared (first use in this function)
include/linux/pci.h:673: error: (Each undeclared identifier is reported only once
include/linux/pci.h:673: error: for each function it appears in.)

Sam says:

The problem is that u_ether.o is used by two modules so when we build it
KBUILD_MODNAME is not defined because kbuild does not know what value to
use.

And in pci.h we have the following inline:

static inline int __must_check pci_register_driver(struct pci_driver *driver)
{
        return __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
}

And alpha uses dma-mapping.h to nullify a number of functions that seem to
require something from pci.h.

Making it a macro fixes this particular problem.  However, the underlying issue
of a file using KBUILD_MODNAME and being shared between multiple modules is
*not* addressed.  I guess the answer there is "don't do that".

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-07 06:52:01 -07:00
Luis R. Rodriguez 00e8a4da8c list.h: add list_cut_position()
This adds list_cut_position() which lets you cut a list into
two lists given a pivot in the list.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-07 09:49:42 -04:00
Luis R. Rodriguez 7d283aee50 list.h: Add list_splice_tail() and list_splice_tail_init()
If you are using linked lists for queues list_splice() will not do what
you would expect even if you use the elements passed reversed. We need
to handle these differently. We add list_splice_tail() and
list_splice_tail_init().

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-07 09:49:42 -04:00
Laurent Pinchart fe41424855 dm9000: Support MAC address setting through platform data.
The dm9000 driver reads the chip's MAC address from the attached EEPROM. When
no EEPROM is present, or when the MAC address is invalid, it falls back to
reading the address from the chip.

This patch lets platform code set the desired MAC address through platform
data.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-07 02:22:54 -04:00
Brandon Philips b11f8d8cc3 ethtool: Expand ethtool_cmd.speed to 32 bits
Introduce the speed_hi field to ethtool_cmd, using the reserved space,
to expand the speed field to 2^32 Megabits/second.

Making this field expansion now gives us plenty of time to fix up the
user-space pieces that use SIOCETHTOOL before hardware faster than 64
Gb/s is available.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-07 02:22:08 -04:00
Yevgeny Petrilin f780a9f119 mlx4_core: Add ethernet fields to CQE struct
Add ethernet-related fields to struct mlx4_cqe so that the mlx4_en
ethernet NIC driver can share the same definition.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-06 20:14:06 -07:00
Linus Torvalds e63e03273b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (78 commits)
  AX.25: Fix sysctl registration if !CONFIG_AX25_DAMA_SLAVE
  pktgen: mac count
  pktgen: random flow 
  bridge: Eliminate unnecessary forward delay
  bridge: fix compile warning in net/bridge/br_netfilter.c
  ipv4: remove unused field in struct flowi (include/net/flow.h).
  tg3: Fix 'scheduling while atomic' errors
  net: Kill plain NET_XMIT_BYPASS.
  net_sched: Add qdisc __NET_XMIT_BYPASS flag
  net_sched: Add qdisc __NET_XMIT_STOLEN flag
  iwl3945: fix merge mistake for packet injection
  iwlwifi: grap nic access before accessing periphery registers
  iwlwifi: decrement rx skb counter in scan abort handler
  iwlwifi: fix unhandled interrupt when HW rfkill is on
  iwlwifi: implement iwl5000_calc_rssi
  iwlwifi: memory allocation optimization
  iwlwifi: HW bug fixes
  p54: Fix potential concurrent access to private data
  rt2x00: Disable link tuning in rt2500usb
  iwlwifi: Don't use buffer allocated on the stack for led names
  ...
2008-08-05 19:37:42 -07:00
Richard Hughes bf1db69fbf pm_qos: spelling fixes
A documentation cleanup patch.  With a minor tweak to clarify units for
kbs.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: mark gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:50 -07:00
Mark Asselstine f6ac436dcc Remove the deprecated cli() sti() functions
These functions have been deprecated for some time now but remained until
all legacy callers could be removed.  With a few commits in 2.6.26 this
has happened so now we can remove these deprecated functions.

Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:48 -07:00
Shadi Ammouri 60cadec9da spi: new orion_spi driver
This adds an SPI driver for the SPI controller found in various Marvell
Orion ARM SoCs.  It currently supports only one slave, which must use SPI
mode 0.

[dbrownell@users.sourceforge.net: cleanups, meet specs, pass "sparse"]
Signed-off-by: Shadi Ammouri <shadi@marvell.com>
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:46 -07:00
Bernhard Walle c6e2bee26e kdump: report actual value of VMCOREINFO_OSRELEASE in VMCOREINFO
The current implementation reports the structure name as
VMCOREINFO_OSRELEASE in VMCOREINFO, e.g.

        VMCOREINFO_OSRELEASE=init_uts_ns.name.release

That doesn't make sense because it's always the same. Instead, use the
value, e.g.

        VMCOREINFO_OSRELEASE=2.6.26-rc3

That's also what the 'makedumpfile -g' does.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: "Ken'ichi Ohmichi" <oomichi@mxs.nes.nec.co.jp>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:46 -07:00
Adrian Bunk c5bfc3757f ide: remove CONFIG_IDE_MAX_HWIFS
The benefits of a user settable CONFIG_IDE_MAX_HWIFS have become pretty 
tiny and are no longer considered worth the trouble of an own option.

Simply always #define MAX_HWIFS to 10.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:17:01 +02:00
Bartlomiej Zolnierkiewicz 39b986a6c7 ide: sanitize struct ide_port_ops documentation (take 2)
v2:
Add missing '@'-s.  (Noticed by Randy Dunlap)

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:16:57 +02:00
David S. Miller 33e334950a Merge branch 'no-ath9k' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2008-08-05 01:28:35 -07:00
Pekka Enberg 5595cffc82 SLUB: dynamic per-cache MIN_PARTIAL
This patch changes the static MIN_PARTIAL to a dynamic per-cache ->min_partial
value that is calculated from object size. The bigger the object size, the more
pages we keep on the partial list.

I tested SLAB, SLUB, and SLUB with this patch on Jens Axboe's 'netio' example
script of the fio benchmarking tool. The script stresses the networking
subsystem which should also give a fairly good beating of kmalloc() et al.

To run the test yourself, first clone the fio repository:

  git clone git://git.kernel.dk/fio.git

and then run the following command n times on your machine:

  time ./fio examples/netio

The results on my 2-way 64-bit x86 machine are as follows:

  [ the minimum, maximum, and average are captured from 50 individual runs ]

                 real time (seconds)
                 min      max      avg      sd
  SLAB           22.76    23.38    22.98    0.17
  SLUB           22.80    25.78    23.46    0.72
  SLUB (dynamic) 22.74    23.54    23.00    0.20

                 sys time (seconds)
                 min      max      avg      sd
  SLAB           6.90     8.28     7.70     0.28
  SLUB           7.42     16.95    8.89     2.28
  SLUB (dynamic) 7.17     8.64     7.73     0.29

                 user time (seconds)
                 min      max      avg      sd
  SLAB           36.89    38.11    37.50    0.29
  SLUB           30.85    37.99    37.06    1.67
  SLUB (dynamic) 36.75    38.07    37.59    0.32

As you can see from the above numbers, this patch brings SLUB to the same level
as SLAB for this particular workload fixing a ~2% regression. I'd expect this
change to help similar workloads that allocate a lot of objects that are close
to the size of a page.

Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
2008-08-05 09:28:47 +03:00
David S. Miller cc6533e98a net: Kill plain NET_XMIT_BYPASS.
dst_input() was doing something completely absurd, looping
on skb->dst->input() if NET_XMIT_BYPASS was seen, but these
functions never return such an error.

And as a result plain ole' NET_XMIT_BYPASS has no more
references and can be completely killed off.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04 23:04:08 -07:00
Jarek Poplawski 378a2f090f net_sched: Add qdisc __NET_XMIT_STOLEN flag
Patrick McHardy <kaber@trash.net> noticed:
"The other problem that affects all qdiscs supporting actions is
TC_ACT_QUEUED/TC_ACT_STOLEN getting mapped to NET_XMIT_SUCCESS
even though the packet is not queued, corrupting upper qdiscs'
qlen counters."

and later explained:
"The reason why it translates it at all seems to be to not increase
the drops counter. Within a single qdisc this could be avoided by
other means easily, upper qdiscs would still increase the counter
when we return anything besides NET_XMIT_SUCCESS though.

This means we need a new NET_XMIT return value to indicate this to
the upper qdiscs. So I'd suggest to introduce NET_XMIT_STOLEN,
return that to upper qdiscs and translate it to NET_XMIT_SUCCESS
in dev_queue_xmit, similar to NET_XMIT_BYPASS."

David Miller <davem@davemloft.net> noticed:
"Maybe these NET_XMIT_* values being passed around should be a set of
bits. They could be composed of base meanings, combined with specific
attributes.

So you could say "NET_XMIT_DROP | __NET_XMIT_NO_DROP_COUNT"

The attributes get masked out by the top-level ->enqueue() caller,
such that the base meanings are the only thing that make their
way up into the stack. If it's only about communication within the
qdisc tree, let's simply code it that way."

This patch is trying to realize these ideas.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-04 22:31:03 -07:00
Nick Piggin ca5de404ff fs: rename buffer trylock
Like the page lock change, this also requires name change, so convert the
raw test_and_set bitop to a trylock.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-04 21:56:09 -07:00
Nick Piggin 529ae9aaa0 mm: rename page trylock
Converting page lock to new locking bitops requires a change of page flag
operation naming, so we might as well convert it to something nicer
(!TestSetPageLocked_Lock => trylock_page, SetPageLocked => set_page_locked).

This also facilitates lockdeping of page lock.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-04 21:31:34 -07:00
Linus Torvalds 2e1e9212ed Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (29 commits)
  sh: enable maple_keyb in dreamcast_defconfig.
  SH2(A) cache update
  nommu: Provide vmalloc_exec().
  add addrespace definition for sh2a.
  sh: Kill off ARCH_SUPPORTS_AOUT and remnants of a.out support.
  sh: define GENERIC_HARDIRQS_NO__DO_IRQ.
  sh: define GENERIC_LOCKBREAK.
  sh: Save NUMA node data in vmcore for crash dumps.
  sh: module_alloc() should be using vmalloc_exec().
  sh: Fix up __bug_table handling in module loader.
  sh: Add documentation and integrate into docbook build.
  sh: Fix up broken kerneldoc comments.
  maple: Kill useless private_data pointer.
  maple: Clean up maple_driver_register/unregister routines.
  input: Clean up maple keyboard driver
  maple: allow removal and reinsertion of keyboard driver module
  sh: /proc/asids depends on MMU.
  arch/sh/boards/mach-se/7343/irq.c: removed duplicated #include
  arch/sh/boards/board-ap325rxa.c: removed duplicated #include
  sh/boards/Makefile typo fix
  ...
2008-08-04 17:26:15 -07:00
Roland McGrath 115a326c1e tracehook: kerneldoc fix
My last change to tracehook.h made it confuse the kerneldoc parser.
Move the #define's before the comment so it's happy again.

Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-04 17:23:43 -07:00
Linus Torvalds c635fd3d3d Merge git://git.infradead.org/users/dwmw2/random-2.6
* git://git.infradead.org/users/dwmw2/random-2.6:
  drivers/video/console/promcon.c: fix build error
  Fix IHEX firmware generation/loading
2008-08-04 17:03:56 -07:00
Linus Torvalds 82248a5e92 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6:
  Add DIP switch readout for HFC-4S IOB4ST
  Fix remaining big endian issue of hfcmulti
  mISDN cleanup user interface
  mISDN fix main ISDN Makefile
2008-08-04 17:00:37 -07:00
Linus Torvalds 1a3f7d98e5 Revert "UFS: add const to parser token table"
This reverts commit f9247273cb (and
fb2e405fc1 - "fix fs/nfs/nfsroot.c
compilation" - that fixed a missed conversion).

The changes cause problems for at least the sparc build.  Let's re-do
them when the exact issues are resolved.

Requested-by: Andrew Morton <akpm@linux-foundation.org>
Requested-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-04 16:50:38 -07:00
Emmanuel Grumbach 98f7dfd86c mac80211: pass dtim_period to low level driver
This patch adds the dtim_period in ieee80211_bss_conf, this allows the low
level driver to know the dtim_period, and to plan power save accordingly.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04 15:09:07 -04:00
Paul Mundt 617870632d maple: Kill useless private_data pointer.
We can simply wrap in to the dev_set/get_drvdata(), there's no reason
to track an extra level of private data on top of the struct device.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 10:58:24 +09:00
Paul Mundt 63870295de maple: Clean up maple_driver_register/unregister routines.
These were completely inconsistent. Clean these up to take a maple_driver
pointer directly for consistency.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 10:39:46 +09:00
Alexander Beregalov cf368d2f9a drivers/video/console/promcon.c: fix build error
drivers/video/console/promcon.c:158: error: implicit declaration of
function 'con_protect_unimap'

Introduced by commit a29ccf6f82
("embedded: fix vc_translate operator precedence").

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Tim Bird <tim.bird@am.sony.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-03 09:51:30 +01:00
Marc Zyngier 85ebd00334 Fix IHEX firmware generation/loading
Fix both the IHEX firmware generation (len field always null, and EOF
marker a byte too short) and loading (struct ihex_binrec needs to be
packed to reflect the on-disk structure).

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-02 18:36:10 +01:00
Karsten Keil ff4cc1de24 mISDN cleanup user interface
The channelmap should have the same size on 32 and 64 bit systems
and should not depend on endianess.
Thanks to David Woodhouse for spotting this.

Signed-off-by: Karsten Keil <kkeil@suse.de>
2008-08-02 16:28:50 +02:00
Tim Bird 4744b43431 embedded: fix vc_translate operator precedence
This fixes a bug in operator precedence in the newly introduced vc_translate
macro.  Without this fix, the translation of some characters on the
kernel console is garbled.

This patch was copied to the e-mail list previously for testing.  Now,
all reports confirm that it works, so this is an official post for
application.

Signed-off-by: Tim Bird <tim.bird@am.sony.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 22:23:09 +01:00
Linus Torvalds 84ff7a0012 Merge branch 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: s390: Fix kvm on IBM System z10
  KVM: Advertise synchronized mmu support to userspace
  KVM: Synchronize guest physical memory map to host virtual memory map
  KVM: Allow browsing memslots with mmu_lock
  KVM: Allow reading aliases with mmu_lock
2008-08-01 12:48:16 -07:00
Linus Torvalds 3a4b7886ee Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_it821x: Driver updates and reworking
  libata.h: replace __FUNCTION__ with __func__
  ata_piix: subsys 106b:00a3 is apple ich8m too
  libata-core: make sure that ata_force_tbl is freed in case of an error
  libata: update atapi disable handling
  pata_via: add VX800 flag; add function for fixing h/w bugs
  pata_ali: misplaced pci_dev_put()
2008-08-01 12:41:29 -07:00
Linus Torvalds b8a327be3f Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-pull
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-pull: (64 commits)
  [XFS] Remove vn_revalidate calls in xfs.
  [XFS] Now that xfs_setattr is only used for attributes set from ->setattr
  [XFS] xfs_setattr currently doesn't just handle the attributes set through
  [XFS] fix use after free with external logs or real-time devices
  [XFS] A bug was found in xfs_bmap_add_extent_unwritten_real(). In a
  [XFS] fix compilation without CONFIG_PROC_FS
  [XFS] s/XFS_PURGE_INODE/IRELE/g s/VN_HOLD(XFS_ITOV())/IHOLD()/
  [XFS] fix mount option parsing in remount
  [XFS] Disable queue flag test in barrier check.
  [XFS] streamline init/exit path
  [XFS] Fix up problem when CONFIG_XFS_POSIX_ACL is not set and yet we still
  [XFS] Don't assert if trying to mount with blocksize > pagesize
  [XFS] Don't update mtime on rename source
  [XFS] Allow xfs_bmbt_split() to fallback to the lowspace allocator
  [XFS] Restore the lowspace extent allocator algorithm
  [XFS] use minleft when allocating in xfs_bmbt_split()
  [XFS] attrmulti cleanup
  [XFS] Check for invalid flags in xfs_attrlist_by_handle.
  [XFS] Fix CI lookup in leaf-form directories
  [XFS] Use the generic xattr methods.
  ...
2008-08-01 12:39:09 -07:00
Roland McGrath 5c7edcd7ee tracehook: fix exit_signal=0 case
My commit 2b2a1ff64a introduced a regression
(sorry about that) for the odd case of exit_signal=0 (e.g. clone_flags=0).
This is not a normal use, but it's used by a case in the glibc test suite.

Dying with exit_signal=0 sends no signal, but it's supposed to wake up a
parent's blocked wait*() calls (unlike the delayed_group_leader case).
This fixes tracehook_notify_death() and its caller to distinguish a
"signal 0" wakeup from the delayed_group_leader case (with no wakeup).

Signed-off-by: Roland McGrath <roland@redhat.com>
Tested-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-01 12:01:11 -07:00
Linus Torvalds 1e24b15b26 Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
  md: raid10: wake up frozen array
  md: do not count blocked devices as spares
  md: do not progress the resync process if the stripe was blocked
  md: delay notification of 'active_idle' to the recovery thread
  md: fix merge error
  md: move async_tx_issue_pending_all outside spin_lock_irq
2008-08-01 11:56:07 -07:00
Linus Torvalds 63a16f9016 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  [PATCH] ocfs2: Release mutex in error handling code
  [PATCH] ocfs2: Fix oops when racing files truncates with writes into an mmap region
  [PATCH 2/2] ocfs2: Fix race between mount and recovery
  [PATCH 1/2] ocfs2: Add counter in struct ocfs2_dinode to track journal replays
  [PATCH] configfs: Convenience macros for attribute definition.
  [PATCH] configfs: Pin configfs subsystems separately from new config_items.
  [PATCH] configfs: Fix open directory making rmdir() fail
  [PATCH] configfs: Lock new directory inodes before removing on cleanup after failure
  [PATCH] configfs: Prevent userspace from creating new entries under attaching directories
  [PATCH] configfs: Fix failing symlink() making rmdir() fail
  [PATCH] configfs: Fix symlink() to a removing item
  [PATCH] configfs: Include linux/err.h in linux/configfs.h
2008-08-01 11:54:05 -07:00
Linus Torvalds b17b3d479c Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  md: the bitmap code needs to use blk_plug_device_unlocked()
  block: add a blk_plug_device_unlocked() that grabs the queue lock
2008-08-01 11:46:00 -07:00
Linus Torvalds 9a5467fd60 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits)
  tcp: MD5: Fix IPv6 signatures
  skbuff: add missing kernel-doc for do_not_encrypt
  net/ipv4/route.c: fix build error
  tcp: MD5: Fix MD5 signatures on certain ACK packets
  ipv6: Fix ip6_xmit to send fragments if ipfragok is true
  ipvs: Move userspace definitions to include/linux/ip_vs.h
  netdev: Fix lockdep warnings in multiqueue configurations.
  netfilter: xt_hashlimit: fix race between htable_destroy and htable_gc
  netfilter: ipt_recent: fix race between recent_mt_destroy and proc manipulations
  netfilter: nf_conntrack_tcp: decrease timeouts while data in unacknowledged
  irda: replace __FUNCTION__ with __func__
  nsc-ircc: default to dongle type 9 on IBM hardware
  bluetooth: add quirks for a few hci_usb devices
  hysdn: remove the packed attribute from PofTimStamp_tag
  isdn: use the common ascii hex helpers
  tg3: adapt tg3 to use reworked PCI PM code
  atm: fix direct casts of pointers to u32 in the InterPhase driver
  atm: fix const assignment/discard warnings in the ATM networking driver
  net: use the common ascii hex helpers
  random32: seeding improvement
  ...
2008-08-01 11:35:16 -07:00
Jens Axboe 6c5e0c4d51 block: add a blk_plug_device_unlocked() that grabs the queue lock
blk_plug_device() must be called with the queue lock held, so callers
often just grab and release the lock for that purpose. Add a helper
that does just that.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-01 20:31:32 +02:00
Linus Torvalds 623fa579e6 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] [NAND] drivers/mtd/nand/nandsim.c: fix printk warnings
  [MTD] [NAND] Blackfin NFC Driver: Cleanup the error exit path of bf5xx_nand_probe function
  [MTD] [NAND] Blackfin NFC Driver: use standard dev_err() rather than printk()
  [MTD] [NAND] Blackfin NFC Driver: enable Blackfin nand HWECC support by default
  [MTD] [NAND] Blackfin NFC Driver: add proper devinit/devexit markings to probe/remove functions
  [MTD] [NAND] Blackfin NFC Driver: add support for the ECC layout the Blackfin bootrom uses
  [MTD] [NAND] Blackfin NFC Driver: fix bug - hw ecc calc by making sure we extract 11 bits from each register instead of 10
  [MTD] [NAND] Blackfin NFC Driver: fix bug - do not clobber the status from the first 256 bytes if operating on 512 pages
  [MTD] [NAND] diskonchip.c fix sparse endian warnings
  [MTD] [NAND] drivers/mtd/nand/nandsim.c needs div64.h
  [JFFS2] Fix allocation of summary buffer
  Fix rename of at91_nand -> atmel_nand
  [MTD] [NOR] drivers/mtd/chips/jedec_probe.c: fix Am29DL800BB device ID
  [MTD] MTD_DEBUG always does compile-time typechecks
  [MTD] DataFlash: bugfix, binary page sizes now handled
  [MTD] [NAND] fsl_elbc_nand.c: fix printk warning
  [MTD] [NAND] nandsim: support random page read command
  [MTD] [NAND] fix subpage read for small page NAND
2008-08-01 11:29:54 -07:00
Linus Torvalds d65f5c5803 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] pass struct path * to do_add_mount()
  [PATCH] switch mtd and dm-table to lookup_bdev()
  [patch 3/4] vfs: remove unused nameidata argument of may_create()
  [PATCH] devpts: switch to IDA
  [PATCH 2/2] proc: switch inode number allocation to IDA
  [PATCH 1/2] proc: fix inode number bogorithmetic
  [PATCH] fix bdev leak in block_dev.c do_open()
  [PATCH] fix races and leaks in vfs_quota_on() users
  [PATCH] clean dup2() up a bit
  [PATCH] merge locate_fd() and get_unused_fd()
  [PATCH] ipv4_static_sysctl_init() should be under CONFIG_SYSCTL
  Re: BUG at security/selinux/avc.c:883 (was: Re: linux-next: Tree
2008-08-01 11:26:51 -07:00
Linus Torvalds 561b35b341 Merge branch 'reg-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'reg-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: TI bq24022 Li-Ion Charger driver
  regulator: maintainers - add maintainers for regulator framework.
  regulator: documentation - ABI
  regulator: documentation - machine
  regulator: documentation - regulator driver
  regulator: documentation - consumer interface
  regulator: documentation - overview
  regulator: core kbuild files
  regulator: regulator test harness
  regulator: add support for fixed regulators.
  regulator: regulator framework core
  regulator: fixed regulator interface
  regulator: machine driver interface
  regulator: regulator driver interface
  regulator: consumer device interface
2008-08-01 10:56:40 -07:00
Linus Torvalds b14f7fb5aa Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  power_supply: Sharp SL-6000 (tosa) batteries support
  power_supply: fix up CHARGE_COUNTER output to be more precise
  power_supply: add CHARGE_COUNTER property and olpc_battery support for it
  power_supply: bump EC version check that we refuse to run with in olpc_battery
  power_supply: cleanup of the OLPC battery driver
  power_supply: add eeprom dump file to olpc_battery's sysfs
  power_supply: Support serial number in olpc_battery
2008-08-01 10:55:07 -07:00
Linus Torvalds 00e9028a95 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
  mm/hugetlb.c must #include <asm/io.h>
  video: Fix up hp6xx driver build regressions.
  sh: defconfig updates.
  sh: Kill off stray mach-rsk7203 reference.
  serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
  sh: Move out individual boards without mach groups.
  sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
  sh: Allow SH-3 and SH-5 to use common headers.
  sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
  sh/maple: clean maple bus code
  sh: More header path fixups for mach dir refactoring.
  sh: Move out the solution engine headers to arch/sh/include/mach-se/
  sh: I2C fix for AP325RXA and Migo-R
  sh: Shuffle the board directories in to mach groups.
  sh: dma-sh: Fix up dreamcast dma.h mach path.
  sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
  sh: Add ARCH_DEFCONFIG entries for sh and sh64.
  sh: Fix compile error of Solution Engine
  sh: Proper __put_user_asm() size mismatch fix.
  sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
  ...
2008-08-01 10:53:43 -07:00
Linus Torvalds 57b1494d2b Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  generic, x86: fix add iommu_num_pages helper function
  x86: remove stray <6> in BogoMIPS printk
  x86: move dma32_reserve_bootmem() after reserve_crashkernel()
2008-08-01 10:28:17 -07:00
Al Viro 8d66bf5481 [PATCH] pass struct path * to do_add_mount()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-08-01 11:25:32 -04:00
Al Viro 77e69dac3c [PATCH] fix races and leaks in vfs_quota_on() users
* new helper: vfs_quota_on_path(); equivalent of vfs_quota_on() sans the
  pathname resolution.
* callers of vfs_quota_on() that do their own pathname resolution and
  checks based on it are switched to vfs_quota_on_path(); that way we
  avoid the races.
* reiserfs leaked dentry/vfsmount references on several failure exits.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-08-01 11:25:25 -04:00
Al Viro 1027abe882 [PATCH] merge locate_fd() and get_unused_fd()
New primitive: alloc_fd(start, flags).  get_unused_fd() and
get_unused_fd_flags() become wrappers on top of it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-08-01 11:25:23 -04:00
Martin Schwidefsky a4b526b3ba [S390] Optimize storage key operations for anon pages
For anonymous pages without a swap cache backing the check in
page_remove_rmap for the physical dirty bit in page_remove_rmap is
unnecessary. The instructions that are used to check and reset the dirty
bit are expensive. Removing the check noticably speeds up process exit.
In addition the clearing of the dirty bit in __SetPageUptodate is
pointless as well. With these two changes there is no storage key
operation for an anonymous page anymore if it does not hit the swap
space.

The micro benchmark which repeatedly executes an empty shell script
gets about 5% faster.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-08-01 16:39:30 +02:00
Randy Dunlap 4a7b61d235 skbuff: add missing kernel-doc for do_not_encrypt
Add missing kernel-doc notation to sk_buff:

Warning(linux-2.6.27-rc1-git2//include/linux/skbuff.h:345): No description found for parameter 'do_not_encrypt'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31 20:52:08 -07:00
Julius Volz bc4768eb08 ipvs: Move userspace definitions to include/linux/ip_vs.h
Current versions of ipvsadm include "/usr/src/linux/include/net/ip_vs.h"
directly. This file also contains kernel-only definitions. Normally, public
definitions should live in include/linux, so this patch moves the
definitions shared with userspace to a new file, "include/linux/ip_vs.h".

This also removes the unused NFC_IPVS_PROPERTY bitmask, which was once
used to point into skb->nfcache.

To make old ipvsadms still compile with this, the old header file includes
the new one.

Thanks to Dave Miller and Horms for noting/adding the missing Kbuild entry
for the new header file.

Signed-off-by: Julius Volz <juliusv@google.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31 20:45:24 -07:00
David S. Miller c3f26a269c netdev: Fix lockdep warnings in multiqueue configurations.
When support for multiple TX queues were added, the
netif_tx_lock() routines we converted to iterate over
all TX queues and grab each queue's spinlock.

This causes heartburn for lockdep and it's not a healthy
thing to do with lots of TX queues anyways.

So modify this to use a top-level lock and a "frozen"
state for the individual TX queues.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31 16:58:50 -07:00
Joel Becker ecb3d28c7e [PATCH] configfs: Convenience macros for attribute definition.
Sysfs has the _ATTR() and _ATTR_RO() macros to make defining extended
form attributes easier.  configfs should have something similiar.

- _CONFIGFS_ATTR() and _CONFIGFS_ATTR_RO() are the counterparts to the
  sysfs macros.
- CONFIGFS_ATTR_STRUCT() creates the extended form attribute structure.
- CONFIGFS_ATTR_OPS() defines the show_attribute()/store_attribute()
  operations that call the show()/store() operations of the extended
  form configfs_attributes.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-07-31 16:21:13 -07:00
Joel Becker dacdd0e047 [PATCH] configfs: Include linux/err.h in linux/configfs.h
We now use PTR_ERR() in the ->make_item() and ->make_group() operations.
Folks including configfs.h need err.h.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-07-31 16:21:12 -07:00
David Miller 419ca3f135 lockdep: fix combinatorial explosion in lock subgraph traversal
When we traverse the graph, either forwards or backwards, we
are interested in whether a certain property exists somewhere
in a node reachable in the graph.

Therefore it is never necessary to traverse through a node more
than once to get a correct answer to the given query.

Take advantage of this property using a global ID counter so that we
need not clear all the markers in all the lock_class entries before
doing a traversal.  A new ID is choosen when we start to traverse, and
we continue through a lock_class only if it's ID hasn't been marked
with the new value yet.

This short-circuiting is essential especially for high CPU count
systems.  The scheduler has a runqueue per cpu, and needs to take
two runqueue locks at a time, which leads to long chains of
backwards and forwards subgraphs from these runqueue lock nodes.
Without the short-circuit implemented here, a graph traversal on
a runqueue lock can take up to (1 << (N - 1)) checks on a system
with N cpus.

For anything more than 16 cpus or so, lockdep will eventually bring
the machine to a complete standstill.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-31 18:38:28 +02:00
Ingo Molnar e4e4e534fa sched clock: revert various sched_clock() changes
Found an interactivity problem on a quad core test-system - simple
CPU loops would occasionally delay the system un an unacceptable way.

After much debugging with Peter Zijlstra it turned out that the problem
is caused by the string of sched_clock() changes - they caused the CPU
clock to jump backwards a bit - which confuses the scheduler arithmetics.

(which is unsigned for performance reasons)

So revert:

 # c300ba2: sched_clock: and multiplier for TSC to gtod drift
 # c0c8773: sched_clock: only update deltas with local reads.
 # af52a90: sched_clock: stop maximum check on NO HZ
 # f7cce27: sched_clock: widen the max and min time

This solves the interactivity problems.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Mike Galbraith <efault@gmx.de>
2008-07-31 17:20:29 +02:00
Patrick McHardy ae375044d3 netfilter: nf_conntrack_tcp: decrease timeouts while data in unacknowledged
In order to time out dead connections quicker, keep track of outstanding data
and cap the timeout.

Suggested by Herbert Xu.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-31 00:38:01 -07:00
Alan Cox 963e4975c6 pata_it821x: Driver updates and reworking
- Add support for the RDC 1010 variant
- Rework the core library to have a read_id method. This allows the hacky
  bits of it821x to go and prepares us for pata_hd
- Switch from WARN to BUG in ata_id_string as it will reboot if you get
  it wrong so WARN won't be seen
- Allow the issue of command 0xFC on the 821x. This is needed to query
  rebuild status.
- Tidy up printk formatting
- Do more ident rewriting on RAID volumes to handle firmware provided
  ident data which is rather wonky
- Report the firmware revision and device layout in RAID mode
- Don't try and disable raid on the 8211 or RDC - they don't have the
  relevant bits

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31 02:04:50 -04:00
Alexander Beregalov 1f938d060a libata.h: replace __FUNCTION__ with __func__
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31 01:48:16 -04:00
Linus Torvalds 660fc1f4d8 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3)
  powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs
  powerpc: Fix ptrace buffer size for VSX
  powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes
  ide/powermac: Fix use of uninitialized pointer on media-bay
  powerpc: Allow non-hcall return values for lparcfg writes
  ipmi/powerpc: Use linux/of_{device,platform}.h instead of asm
  powerpc/fsl: proliferate simple-bus compatibility to soc nodes
  Documentation: remove old sbc8260 board specific information
  cpm2: Rework baud rate generators configuration to support external clocks.
  powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC
  cpm_uart: Add generic clock API support to set baudrates
  cpm_uart: Modem control lines support
  powerpc: implement GPIO LIB API on CPM1 Freescale SoC.
  cpm2: Implement GPIO LIB API on CPM2 Freescale SoC.
  powerpc: Fix 8xx build failure
  powerpc: clean up the Book-E HW watchpoint support
2008-07-30 10:43:56 -07:00
Stephen Rothwell 3dd730f2b4 cpumask: statement expressions confuse some versions of gcc
when you take the address of the result.  Noticed on a sparc64 compile
using a version 3.4.5 cross compiler.

 kernel/time/tick-common.c: In function `tick_check_new_device':
 kernel/time/tick-common.c:210: error: invalid lvalue in unary `&'
 ...

Just make it a regular expression.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 10:35:49 -07:00
Linus Torvalds a4319d9fa0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)
  net: Make "networking" one-click deselectable.
  ipv6: Fix useless proc net sockstat6 removal
  tcp: MD5: Use MIB counter instead of warning for MD5 mismatch.
  pkt_sched: Fix OOPS on ingress qdisc add.
  niu: Fix error checking in niu_ethflow_to_class.
  IPv6: datagram_send_ctl() should exit immediately when an error occured
  mac80211: fix mesh beaconing
  PS3: gelic: use unsigned long for irqflags
  mac80211: fix cfg80211 hooks for master interface
  nl80211: fix dump callbacks
  mac80211: partially fix skb->cb use
  rtl8187: Improve wireless statistics for RTL8187B
  rtl8187: Fix for TX sequence number problem
  mac80211: append CONFIG_ to MAC80211_VERBOSE_PS_DEBUG in net/mac80211/tx.c.
  mac80211: fix sparse integer as NULL pointer warning
  drivers/net/wireless/iwlwifi/iwl-led.c: printk fix
  mac80211: return correct error return from ieee80211_wep_init
  mac80211: tx, use dev_kfree_skb_any for beacon_get
  rt2x00: Clear queue entry flags during initialization
  rt2x00: Force full register config after start()
  ...
2008-07-30 10:13:37 -07:00
Jack Steiner c627f9cc04 mm: add zap_vma_ptes(): a library function to unmap driver ptes
zap_vma_ptes() is intended to be used by drivers to unmap ptes assigned to the
driver private vmas.  This interface is similar to zap_page_range() but is
less general & less likely to be abused.

Needed by the GRU driver.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:47 -07:00
Joerg Roedel 204b885e73 introduce lower_32_bits() macro
The file kernel.h contains the upper_32_bits macro.  This patch adds the
other part, the lower_32_bits macro.  Its first use will be in the driver
for AMD IOMMU.

Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:46 -07:00
Jerome Arbez-Gindre 2c203003f6 connector: add a BlackBoard user to connector
Add a BlackBoard user to connector.  BlackBoard is part of the TSP GPL
sampling framework (http://savannah.nongnu.org/p/tsp)

[akpm@linux-foundation.org: add comment]
Signed-off-by: Jerome Arbez-Gindre <jeromearbezgindre@gmail.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:45 -07:00
Vegard Nossum 3f1712bac5 print_ip_sym(): use %pS
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:45 -07:00
Yinghai Lu 1d1958f050 mm: remove find_max_pfn_with_active_regions
It has no user now

Also print out info about adding/removing active regions.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:44 -07:00
Thomas Renninger a1531acd43 cpufreq acpi: only call _PPC after cpufreq ACPI init funcs got called already
Ingo Molnar provided a fix to not call _PPC at processor driver
initialization time in "[PATCH] ACPI: fix cpufreq regression" (git
commit e4233dec74)

But it can still happen that _PPC is called at processor driver
initialization time.

This patch should make sure that this is not possible anymore.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:43 -07:00
Magnus Damm 1a4e564b7d resource: add resource_size()
Avoid one-off errors by introducing a resource_size() function.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:43 -07:00
David Brownell 95b1bc2053 [MTD] MTD_DEBUG always does compile-time typechecks
The current style for debug messages is to ensure they're always
parsed by the compiler and then subjected to dead code removal.
That way builds won't break only when debug options get enabled,
which is common when they are stripped out early by CPP.

This patch makes CONFIG_MTD_DEBUG adopt that convention.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30 14:21:05 +01:00
Alexey Korolev 96d8b647cf [MTD] [NAND] fix subpage read for small page NAND
Current implementation of subpage read feature for NAND has issues with
small page devices. Small page NAND do not support RNDOUT command.
So subpage feature is not applicable for them.

This patch disables support of subpage for small page NAND.
The code is verified on nandsim(SP NAND simulation) and on LP NAND
devices.

Thanks a lot to Artem for finding this issue.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30 11:59:24 +01:00
David S. Miller 785957d3e8 tcp: MD5: Use MIB counter instead of warning for MD5 mismatch.
From a report by Matti Aarnio, and preliminary patch by Adam Langley.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-30 03:27:25 -07:00
Philipp Zabel 0eb5d5ab3e regulator: TI bq24022 Li-Ion Charger driver
This adds a regulator driver for the TI bq24022 Single-Chip
Li-Ion Charger with its nCE and ISET2 pins connected to GPIOs.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
2008-07-30 10:10:23 +01:00
Mark Brown 48d335ba31 regulator: fixed regulator interface
This patch adds support for fixed regulators. This class of regulator is
not software controllable but can coexist on machines with software
controlable regulators.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
2008-07-30 10:10:21 +01:00
Liam Girdwood 4c1184e85c regulator: machine driver interface
This interface is for machine specific code and allows the creation of
voltage/current domains (with constraints) for each regulator. It can
provide regulator constraints that will prevent device damage through
overvoltage or over current caused by buggy client drivers. It also
allows the creation of a regulator tree whereby some regulators are
supplied by others (similar to a clock tree).

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2008-07-30 10:10:21 +01:00