The device which identifies itself as a "USB Keykoard" (no typo) with VID:PID
1a2c:0023 does not seem to be handling the reports initialization very well.
This results in a "usb_submit_urb(ctrl) failed: -1" message from the kernel
when connected, and a delay before its initialization. This patch adds the
quirk for this device, which causes the delay to disappear.
[jkosina@suse.cz: remove superfluous comment and fix ordering]
Signed-off-by: Daniel Kamil Kozar <dkk089@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add the Microsoft Surface Pro 2 Type/Touch and default device hardware ID's
Set report quirk for the device in hid-sensor-hub
Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some saitek mice implement a tristate button (for switching button mappings in
the original driver) by keeping one of three (non-physical)
buttons constantly pressed.
This breaks X and probably other userspace software.
This patch implements a quirk for the R.A.T.7 and M.M.O.7, tracking the mode
and generating presses of a single button if it changes. Also the missing
release event is generated instantly.
Signed-off-by: Harald Brinkmann <hbrinkmann@braincalibration.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull HID fixes from Jiri Kosina:
- fix for merge window mismerge in hid-sony, from Frank Praznik
- fix for Surface Type/Touch Cover 2 device, from Benjamin Tissoires
- quirk for ThinkPad Helix sensor hub from Stephen Chandler Paul
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: core: do not scan constant input report
Revert "HID: microsoft: Add ID's for Surface Type/Touch Cover 2"
HID: sensor-hub: add sensor hub quirk for ThinkPad Helix
HID: sony: Fix cancel_work_sync mismerge
Just a copule of HD-audio device/codec-specific quirks, and a
trivial replacement of udelay() with mdelay() in the old es18xx
driver code. All should be safe to apply.
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Merge tag 'sound-3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a copule of HD-audio device/codec-specific quirks, and a trivial
replacement of udelay() with mdelay() in the old es18xx driver code.
All should be safe to apply"
* tag 'sound-3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Add headset Mic support for Dell machine
ALSA: hda - add headset mic detect quirk for a Dell laptop
ALSA: es18xx driver should use udelay error
ALSA: hda/realtek - Add support of ALC288 codec
Data corruption fixes:
- fix a bunch of delayed allocation state mismatches
- fix collapse/zero range bugs
- fix a direct IO block mapping bug @ EOF
Other fixes:
- fix a use after free on metadata IO error
- fix a use after free on IO error during unmount
- fix an incorrect error sign on direct IO write errors
- add missing O_TMPFILE inode security context initialisation
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Merge tag 'xfs-for-linus-3.15-rc2' of git://oss.sgi.com/xfs/xfs
Pull xfs bug fixes from Dave Chinner:
"The fixes are for data corruption issues, memory corruption and
regressions for changes merged in -rc1.
Data corruption fixes:
- fix a bunch of delayed allocation state mismatches
- fix collapse/zero range bugs
- fix a direct IO block mapping bug @ EOF
Other fixes:
- fix a use after free on metadata IO error
- fix a use after free on IO error during unmount
- fix an incorrect error sign on direct IO write errors
- add missing O_TMPFILE inode security context initialisation"
* tag 'xfs-for-linus-3.15-rc2' of git://oss.sgi.com/xfs/xfs:
xfs: fix tmpfile/selinux deadlock and initialize security
xfs: fix buffer use after free on IO error
xfs: wrong error sign conversion during failed DIO writes
xfs: unmount does not wait for shutdown during unmount
xfs: collapse range is delalloc challenged
xfs: don't map ranges that span EOF for direct IO
xfs: zeroing space needs to punch delalloc blocks
xfs: xfs_vm_write_end truncates too much on failure
xfs: write failure beyond EOF truncates too much data
xfs: kill buffers over failed write ranges properly
The first is to remove a duplication of creating debugfs files that
already exist and causes an error report to be printed due to the
failure of the second creation.
The second is a memory leak fix that was introduced in 3.14.
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Merge tag 'trace-fixes-v3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"This contains two fixes.
The first is to remove a duplication of creating debugfs files that
already exist and causes an error report to be printed due to the
failure of the second creation.
The second is a memory leak fix that was introduced in 3.14"
* tag 'trace-fixes-v3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/uprobes: Fix uprobe_cpu_buffer memory leak
tracing: Do not try to recreated toplevel set_ftrace_* files
Add an empty version of of_find_node_by_path().
This fixes following build error for asoc tree:
sound/soc/fsl/fsl_ssi.c: In function 'fsl_ssi_probe':
sound/soc/fsl/fsl_ssi.c:1471:2: error: implicit declaration of function 'of_find_node_by_path' [-Werror=implicit-function-declaration]
sprop = of_get_property(of_find_node_by_path("/"), "compatible", NULL);
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Rob Herring <robh@kernel.org>
Pull timer fixes from Thomas Gleixner:
"Viresh unearthed the following three hickups in the timer/timekeeping
code:
- Negated check for the result of a clock event selection
- A missing early exit in the jiffies update path which causes
update_wall_time to be called for nothing causing lock contention
and wasted cycles in the timer interrupt
- Checking a variable in the NOHZ code enable code for true which can
only be set by that very code after the check succeeds. That
results in a rock solid runtime disablement of that feature"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz()
tick-sched: Don't call update_wall_time() when delta is lesser than tick_period
tick-common: Fix wrong check in tick_check_replacement()
Pull parisc updates from Helge Deller:
"There are two major changes in this patchset:
The major fix is that the epoll_pwait() syscall for 32bit userspace
was not using the compat wrapper on a 64bit kernel.
Secondly we changed the value of SHMLBA from 4MB to PAGE_SIZE to
reflect that we can actually mmap to any multiple of PAGE_SIZE. The
only thing which needs care is that shared mmaps need to be mapped at
the same offset inside the 4MB cache window"
* 'parisc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: fix epoll_pwait syscall on compat kernel
parisc: change value of SHMLBA from 0x00400000 to PAGE_SIZE
parisc: Replace __get_cpu_var uses for address calculation
Merge ipmi fixes from Corey Minyard:
"Things collected since last kernel release.
Some of these are pretty important. The first three are bug fixes.
The next two are to hopefully make everyone happy about allowing
ACPI to be on all the time and not have IPMI have an effect on the
system when not in use. The last is a little cleanup"
* emailed patches from Corey Minyard <cminyard@mvista.com>:
ipmi: boolify some things
ipmi: Turn off all activity on an idle ipmi interface
ipmi: Turn off default probing of interfaces
ipmi: Reset the KCS timeout when starting error recovery
ipmi: Fix a race restarting the timer
Char: ipmi_bt_sm, fix infinite loop
The IPMI driver would wake up periodically looking for events and
watchdog pretimeouts. If there is nothing waiting for these events,
it's really kind of pointless to be checking for them. So modify the
driver so the message handler can pass down if it needs the lower layer
to be waiting for these. Modify the system interface lower layer to
turn off all timer and thread activity if the upper layer doesn't need
anything and it is not currently handling messages. And modify the
message handler to not restart the timer if its timer is not needed.
The timers and kthread will still be enabled if:
- the SI interface is handling a message.
- a user has enabled watching for events.
- the IPMI watchdog timer is in use (since it uses pretimeouts).
- the message handler is waiting on a remote response.
- a user has registered to receive commands.
This mostly affects interfaces without interrupts. Interfaces with
interrupts already don't use CPU in the system interface when the
interface is idle.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The default probing can cause problems with some system, slow booting,
extra CPU usages, etc. Turn it off by default and give a config option
to enable it.
From: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The OBF timer in KCS was not reset in one situation when error recovery
was started, resulting in an immediate timeout.
Reported-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With recent changes it is possible for the timer handler to detect an
idle interface and not start the timer, but the thread to start an
operation at the same time. The thread will not start the timer in that
instance, resulting in the timer not running.
Instead, move all timer operations under the lock and start the timer in
the thread if it detect non-idle and the timer is not already running.
Moving under locks allows the last timeout to be set in both the thread
and the timer. 'Timer is not running' means that the timer is not
pending and smi_timeout() is not running. So we need a flag to detect
this correctly.
Also fix a few other timeout bugs: setting the last timeout when the
interrupt has to be disabled and the timer started, and setting the last
timeout in check_start_timer_thread possibly racing with the timer
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In read_all_bytes, we do
unsigned char i;
...
bt->read_data[0] = BMC2HOST;
bt->read_count = bt->read_data[0];
...
for (i = 1; i <= bt->read_count; i++)
bt->read_data[i] = BMC2HOST;
If bt->read_data[0] == bt->read_count == 255, we loop infinitely in the
'for' loop. Make 'i' an 'int' instead of 'char' to get rid of the
overflow and finish the loop after 255 iterations every time.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-and-debugged-by: Rui Hui Dian <rhdian@novell.com>
Cc: Tomas Cech <tcech@suse.cz>
Cc: Corey Minyard <minyard@acm.org>
Cc: <openipmi-developer@lists.sourceforge.net>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix completely broken 32-bit PV guests caused by x86 refactoring
32-bit thread_info.
- Only enable ticketlock slow path on Xen (not bare metal).
- Fix two bugs with PV guests not shutting down when requested.
- Fix a minor memory leak in xen-pciback error path.
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Merge tag 'stable/for-linus-3.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen fixes from David Vrabel:
"Xen regression and bug fixes for 3.15-rc1:
- fix completely broken 32-bit PV guests caused by x86 refactoring
32-bit thread_info.
- only enable ticketlock slow path on Xen (not bare metal)
- fix two bugs with PV guests not shutting down when requested
- fix a minor memory leak in xen-pciback error path"
* tag 'stable/for-linus-3.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/manage: Poweroff forcefully if user-space is not yet up.
xen/xenbus: Avoid synchronous wait on XenBus stalling shutdown/restart.
xen/spinlock: Don't enable them unconditionally.
xen-pciback: silence an unwanted debug printk
xen: fix memory leak in __xen_pcibk_add_pci_dev()
x86/xen: Fix 32-bit PV guests's usage of kernel_stack
drivers/video/fbdev/ and the fbdev framework core files are located in
drivers/video/fbdev/core/
The drivers/video/Kconfig is modified so that the DRM and the fbdev menu
options are in separate submenus, instead of both being mixed in the same
'Graphics support' menu level.
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Merge tag 'fbdev-reorder-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev renaming patches from Tomi Valkeinen:
"Reorder drivers/video/ directory so that all fbdev drivers are now
located in drivers/video/fbdev/ and the fbdev framework core files are
located in drivers/video/fbdev/core/
The drivers/video/Kconfig is modified so that the DRM and the fbdev
menu options are in separate submenus, instead of both being mixed in
the same 'Graphics support' menu level"
* tag 'fbdev-reorder-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
video: Kconfig: move drm and fb into separate menus
fbdev: move fbdev core files to separate directory
video: move fbdev to drivers/video/fbdev
I hit another BUG_ON with e240c1839d. In __get_priority_stripe(),
stripe count equals to 0 initially. Between atomic_inc and BUG_ON,
get_active_stripe() finds the stripe. So the stripe count isn't 1 any more.
V2: keeps the BUG_ON suggested by Neil.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
At the moment the "Device Drivers / Graphics support" kernel config page
looks rather messy, with DRM and fbdev driver selections on the same
page, some on the top level Graphics support page, some under their
respective subsystems.
If I'm not mistaken, this is caused by the drivers depending on other
things than DRM or FB, which causes Kconfig to arrange the options in
not-so-neat manner.
Both DRM and FB have a main menuconfig option for the whole DRM or FB
subsystem. Optimally, this would be enough to arrange all DRM and FB
options under the respective subsystem, but for whatever reason this
doesn't work reliably.
This patch adds an explicit submenu for DRM and FB, making it much
clearer which options are related to FB, and which to DRM.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Instead of having fbdev framework core files at the root fbdev
directory, mixed with random fbdev device drivers, move the fbdev core
files to a separate core directory. This makes it much clearer which of
the files are actually part of the fbdev framework, and which are part
of device drivers.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull x86 fixes from Ingo Molnar:
"Various fixes:
- reboot regression fix
- build message spam fix
- GPU quirk fix
- 'make kvmconfig' fix
plus the wire-up of the renameat2() system call on i386"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Remove the PCI reboot method from the default chain
x86/build: Supress "Nothing to be done for ..." messages
x86/gpu: Fix sign extension issue in Intel graphics stolen memory quirks
x86/platform: Fix "make O=dir kvmconfig"
i386: Wire up the renameat2() syscall
Pull perf fixes from Ingo Molnar:
"Tooling fixes, plus a simple hardware-enablement patch for the Intel
RAPL PMU (energy use measurement) on Haswell CPUs, which I hope is
still fine at this stage"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Instead of redirecting flex output, use -o
perf tools: Fix double free in perf test 21 (code-reading.c)
perf stat: Initialize statistics correctly
perf bench: Set more defaults in the 'numa' suite
perf bench: Fix segfault at the end of an 'all' execution
perf bench: Update manpage to mention numa and futex
perf probe: Use dwarf_getcfi_elf() instead of dwarf_getcfi()
perf probe: Fix to handle errors in line_range searching
perf probe: Fix --line option behavior
perf tools: Pick up libdw without explicit LIBDW_DIR
MAINTAINERS: Change e-mail to kernel.org one
perf callchains: Disable unwind libraries when libelf isn't found
tools lib traceevent: Do not call warning() directly
tools lib traceevent: Print event name when show warning if possible
perf top: Fix documentation of invalid -s option
perf/x86: Enable DRAM RAPL support on Intel Haswell
With the restructing of the function tracer working with instances, the
"top level" buffer is a bit special, as the function tracing is mapped
to the same set of filters. This is done by using a "global_ops" descriptor
and having the "set_ftrace_filter" and "set_ftrace_notrace" map to it.
When an instance is created, it creates the same files but its for the
local instance and not the global_ops.
The issues is that the local instance creation shares some code with
the global instance one and we end up trying to create th top level
"set_ftrace_*" files twice, and on boot up, we get an error like this:
Could not create debugfs 'set_ftrace_filter' entry
Could not create debugfs 'set_ftrace_notrace' entry
The reason they failed to be created was because they were created
twice, and the second time gives this error as you can not create the
same file twice.
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
- Fix a couple of barnsjukdomar on the Rockchip driver.
- Remove an idiotic debug print I happened to leave behind
in the Nomadik driver.
- Fixup the Qualcomm MSM interrupt handling code for the
TLMM v2.
- Three patches renaming the Broadcom Capri driver to
BCM28155. This has been falling between the chairs for
some time due to some cross-tree synchronization
misunderstandings, now I'm fed up with this and just
rename it in this -rc1 phase.
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Merge tag 'pinctrl-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pincontrol fixes from Linus Walleij:
"A first set of pin control fixes for the v3.15 series:
- Fix a couple of barnsjukdomar on the Rockchip driver.
- Remove an idiotic debug print I happened to leave behind in the
Nomadik driver.
- Fixup the Qualcomm MSM interrupt handling code for the TLMM v2.
- Three patches renaming the Broadcom Capri driver to BCM28155. This
has been falling between the chairs for some time due to some
cross-tree synchronization misunderstandings, now I'm fed up with
this and just rename it in this -rc1 phase"
* tag 'pinctrl-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: fix typo in bindings documentation
Update bcm_defconfig with new pinctrl CONFIG
pinctrl: Rename Broadcom Capri pinctrl driver
pinctrl: msm: Correct interrupt code for TLMM v2
pinctrl: nomadik: delete stray debug print
pinctrl: rockchip: handle first half of rk3188-bank0 correctly
pinctrl: rockchip: add return value to rockchip_set_mux
pinctrl: rockchip: fix offset of mux registers for rk3188
xfstests generic/004 reproduces an ilock deadlock using the tmpfile
interface when selinux is enabled. This occurs because
xfs_create_tmpfile() takes the ilock and then calls d_tmpfile(). The
latter eventually calls into xfs_xattr_get() which attempts to get the
lock again. E.g.:
xfs_io D ffffffff81c134c0 4096 3561 3560 0x00000080
ffff8801176a1a68 0000000000000046 ffff8800b401b540 ffff8801176a1fd8
00000000001d5800 00000000001d5800 ffff8800b401b540 ffff8800b401b540
ffff8800b73a6bd0 fffffffeffffffff ffff8800b73a6bd8 ffff8800b5ddb480
Call Trace:
[<ffffffff8177f969>] schedule+0x29/0x70
[<ffffffff81783a65>] rwsem_down_read_failed+0xc5/0x120
[<ffffffffa05aa97f>] ? xfs_ilock_attr_map_shared+0x1f/0x50 [xfs]
[<ffffffff813b3434>] call_rwsem_down_read_failed+0x14/0x30
[<ffffffff810ed179>] ? down_read_nested+0x89/0xa0
[<ffffffffa05aa7f2>] ? xfs_ilock+0x122/0x250 [xfs]
[<ffffffffa05aa7f2>] xfs_ilock+0x122/0x250 [xfs]
[<ffffffffa05aa97f>] xfs_ilock_attr_map_shared+0x1f/0x50 [xfs]
[<ffffffffa05701d0>] xfs_attr_get+0x90/0xe0 [xfs]
[<ffffffffa0565e07>] xfs_xattr_get+0x37/0x50 [xfs]
[<ffffffff8124842f>] generic_getxattr+0x4f/0x70
[<ffffffff8133fd9e>] inode_doinit_with_dentry+0x1ae/0x650
[<ffffffff81340e0c>] selinux_d_instantiate+0x1c/0x20
[<ffffffff813351bb>] security_d_instantiate+0x1b/0x30
[<ffffffff81237db0>] d_instantiate+0x50/0x70
[<ffffffff81237e85>] d_tmpfile+0xb5/0xc0
[<ffffffffa05add02>] xfs_create_tmpfile+0x362/0x410 [xfs]
[<ffffffffa0559ac8>] xfs_vn_tmpfile+0x18/0x20 [xfs]
[<ffffffff81230388>] path_openat+0x228/0x6a0
[<ffffffff810230f9>] ? sched_clock+0x9/0x10
[<ffffffff8105a427>] ? kvm_clock_read+0x27/0x40
[<ffffffff8124054f>] ? __alloc_fd+0xaf/0x1f0
[<ffffffff8123101a>] do_filp_open+0x3a/0x90
[<ffffffff817845e7>] ? _raw_spin_unlock+0x27/0x40
[<ffffffff8124054f>] ? __alloc_fd+0xaf/0x1f0
[<ffffffff8121e3ce>] do_sys_open+0x12e/0x210
[<ffffffff8121e4ce>] SyS_open+0x1e/0x20
[<ffffffff8178eda9>] system_call_fastpath+0x16/0x1b
xfs_vn_tmpfile() also fails to initialize security on the newly created
inode.
Pull the d_tmpfile() call up into xfs_vn_tmpfile() after the transaction
has been committed and the inode unlocked. Also, initialize security on
the inode based on the parent directory provided via the tmpfile call.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
When testing exhaustion of dm snapshots, the following appeared
with CONFIG_DEBUG_OBJECTS_FREE enabled:
ODEBUG: free active (active state 0) object type: work_struct hint: xfs_buf_iodone_work+0x0/0x1d0 [xfs]
indicating that we'd freed a buffer which still had a pending reference,
down this path:
[ 190.867975] [<ffffffff8133e6fb>] debug_check_no_obj_freed+0x22b/0x270
[ 190.880820] [<ffffffff811da1d0>] kmem_cache_free+0xd0/0x370
[ 190.892615] [<ffffffffa02c5924>] xfs_buf_free+0xe4/0x210 [xfs]
[ 190.905629] [<ffffffffa02c6167>] xfs_buf_rele+0xe7/0x270 [xfs]
[ 190.911770] [<ffffffffa034c826>] xfs_trans_read_buf_map+0x7b6/0xac0 [xfs]
At issue is the fact that if IO fails in xfs_buf_iorequest,
we'll queue completion unconditionally, and then call
xfs_buf_rele; but if IO failed, there are no IOs remaining,
and xfs_buf_rele will free the bp while work is still queued.
Fix this by not scheduling completion if the buffer has
an error on it; run it immediately. The rest is only comment
changes.
Thanks to dchinner for spotting the root cause.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
We negate the error value being returned from a generic function
incorrectly. The code path that it is running in returned negative
errors, so there is no need to negate it to get the correct error
signs here.
This was uncovered by generic/019.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
And interesting situation can occur if a log IO error occurs during
the unmount of a filesystem. The cases reported have the same
signature - the update of the superblock counters fails due to a log
write IO error:
XFS (dm-16): xfs_do_force_shutdown(0x2) called from line 1170 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa08a44a1
XFS (dm-16): Log I/O Error Detected. Shutting down filesystem
XFS (dm-16): Unable to update superblock counters. Freespace may not be correct on next mount.
XFS (dm-16): xfs_log_force: error 5 returned.
XFS (¿-¿¿¿): Please umount the filesystem and rectify the problem(s)
It can be seen that the last line of output contains a corrupt
device name - this is because the log and xfs_mount structures have
already been freed by the time this message is printed. A kernel
oops closely follows.
The issue is that the shutdown is occurring in a separate IO
completion thread to the unmount. Once the shutdown processing has
started and all the iclogs are marked with XLOG_STATE_IOERROR, the
log shutdown code wakes anyone waiting on a log force so they can
process the shutdown error. This wakes up the unmount code that
is doing a synchronous transaction to update the superblock
counters.
The unmount path now sees all the iclogs are marked with
XLOG_STATE_IOERROR and so never waits on them again, knowing that if
it does, there will not be a wakeup trigger for it and we will hang
the unmount if we do. Hence the unmount runs through all the
remaining code and frees all the filesystem structures while the
xlog_iodone() is still processing the shutdown. When the log
shutdown processing completes, xfs_do_force_shutdown() emits the
"Please umount the filesystem and rectify the problem(s)" message,
and xlog_iodone() then aborts all the objects attached to the iclog.
An iclog that has already been freed....
The real issue here is that there is no serialisation point between
the log IO and the unmount. We have serialisations points for log
writes, log forces, reservations, etc, but we don't actually have
any code that wakes for log IO to fully complete. We do that for all
other types of object, so why not iclogbufs?
Well, it turns out that we can easily do this. We've got xfs_buf
handles, and that's what everyone else uses for IO serialisation.
i.e. bp->b_sema. So, lets hold iclogbufs locked over IO, and only
release the lock in xlog_iodone() when we are finished with the
buffer. That way before we tear down the iclog, we can lock and
unlock the buffer to ensure IO completion has finished completely
before we tear it down.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Mike Snitzer <snitzer@redhat.com>
Tested-by: Bob Mastors <bob.mastors@solidfire.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
FSX has been detecting data corruption after to collapse range
calls. The key observation is that the offset of the last extent in
the file was not being shifted, and hence when the file size was
adjusted it was truncating away data because the extents handled
been correctly shifted.
Tracing indicated that before the collapse, the extent list looked
like:
....
ino 0x5788 state idx 6 offset 26 block 195904 count 10 flag 0
ino 0x5788 state idx 7 offset 39 block 195917 count 35 flag 0
ino 0x5788 state idx 8 offset 86 block 195964 count 32 flag 0
and after the shift of 2 blocks:
ino 0x5788 state idx 6 offset 24 block 195904 count 10 flag 0
ino 0x5788 state idx 7 offset 37 block 195917 count 35 flag 0
ino 0x5788 state idx 8 offset 86 block 195964 count 32 flag 0
Note that the last extent did not change offset. After the changing
of the file size:
ino 0x5788 state idx 6 offset 24 block 195904 count 10 flag 0
ino 0x5788 state idx 7 offset 37 block 195917 count 35 flag 0
ino 0x5788 state idx 8 offset 86 block 195964 count 30 flag 0
You can see that the last extent had it's length truncated,
indicating that we've lost data.
The reason for this is that the xfs_bmap_shift_extents() loop uses
XFS_IFORK_NEXTENTS() to determine how many extents are in the inode.
This, unfortunately, doesn't take into account delayed allocation
extents - it's a count of physically allocated extents - and hence
when the file being collapsed has a delalloc extent like this one
does prior to the range being collapsed:
....
ino 0x5788 state idx 4 offset 11 block 4503599627239429 count 1 flag 0
....
it gets the count wrong and terminates the shift loop early.
Fix it by using the in-memory extent array size that includes
delayed allocation extents to determine the number of extents on the
inode.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Al Viro tracked down the problem that has caused generic/263 to fail
on XFS since the test was introduced. If is caused by
xfs_get_blocks() mapping a single extent that spans EOF without
marking it as buffer-new() so that the direct IO code does not zero
the tail of the block at the new EOF. This is a long standing bug
that has been around for many, many years.
Because xfs_get_blocks() starts the map before EOF, it can't set
buffer_new(), because that causes he direct IO code to also zero
unaligned sectors at the head of the IO. This would overwrite valid
data with zeros, and hence we cannot validly return a single extent
that spans EOF to direct IO.
Fix this by detecting a mapping that spans EOF and truncate it down
to EOF. This results in the the direct IO code doing the right thing
for unaligned data blocks before EOF, and then returning to get
another mapping for the region beyond EOF which XFS treats correctly
by setting buffer_new() on it. This makes direct Io behave correctly
w.r.t. tail block zeroing beyond EOF, and fsx is happy about that.
Again, thanks to Al Viro for finding what I couldn't.
[ dchinner: Fix for __divdi3 build error:
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Pull s390 patches from Martin Schwidefsky:
"An update to the oops output with additional information about the
crash. The renameat2 system call is enabled. Two patches in regard
to the PTR_ERR_OR_ZERO cleanup. And a bunch of bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/sclp_cmd: replace PTR_RET with PTR_ERR_OR_ZERO
s390/sclp: replace PTR_RET with PTR_ERR_OR_ZERO
s390/sclp_vt220: Fix kernel panic due to early terminal input
s390/compat: fix typo
s390/uaccess: fix possible register corruption in strnlen_user_srst()
s390: add 31 bit warning message
s390: wire up sys_renameat2
s390: show_registers() should not map user space addresses to kernel symbols
s390/mm: print control registers and page table walk on crash
s390/smp: fix smp_stop_cpu() for !CONFIG_SMP
s390: fix control register update
April 2014 Itanium processor specification update:
http://www.intel.com/content/www/us/en/processors/itanium/itanium-specification-update.html
describes this erratum:
=========================================================================
237. Under a complex set of conditions, store to load forwarding for a
sub 8-byte load may complete incorrectly
Problem: A load instruction may complete incorrectly when a code sequence
using 4-byte or smaller load and store operations to the same address
is executed in combination with specific timing of all the following
concurrent conditions: store to load forwarding, alignment checking
enabled, a mis-predicted branch, and complex cache utilization activity.
Implication: The affected sub 8-byte instruction may complete
incorrectly resulting in unpredictable system behavior. There is an
extremely low probability of exposure due to the significant number of
complex microarchitectural concurrent conditions required to encounter
the erratum.
Workaround: Set PSR.ac = 0 to completely avoid the erratum. Disabling
Hyper-Threading will significantly reduce exposure to the conditions
that contribute to encountering the erratum.
Status: See the Summary Table of Changes for the affected steppings.
=========================================================================
[Table of changes essentially lists all models from McKinley to Tukwila]
The PSR.ac bit controls whether the processor will always generate
an unaligned reference trap (0x5a00) for a misaligned data access
(when PSR.ac=1) or if it will let the access succeed when running
on a cpu that implements logic to handle some unaligned accesses.
Way back in 2008 in commit b704882e70
[IA64] Rationalize kernel mode alignment checking
we made the decision to always enable strict checking. We were
already doing so in trap/interrupt context because the common
preamble code set this bit - but the rest of supervisor code
(and by inheritance user code) ran with PSR.ac=0.
We now reverse that decision and set PSR.ac=0 everywhere in the
kernel (also inherited by user processes). This will avoid the
erratum using the method described in the Itanium specification
update. Net effect for users is that the processor will handle
unaligned access when it can (typically with a tiny performance
bubble in the pipeline ... but much less invasive than taking a
trap and having the OS perform the access).
Signed-off-by: Tony Luck <tony.luck@intel.com>
Steve reported a reboot hang and bisected it back to this commit:
a4f1987e4c x86, reboot: Add EFI and CF9 reboot methods into the default list
He heroically tested all reboot methods and found the following:
reboot=t # triple fault ok
reboot=k # keyboard ctrl FAIL
reboot=b # BIOS ok
reboot=a # ACPI FAIL
reboot=e # EFI FAIL [system has no EFI]
reboot=p # PCI 0xcf9 FAIL
And I think it's pretty obvious that we should only try PCI 0xcf9 as a
last resort - if at all.
The other observation is that (on this box) we should never try
the PCI reboot method, but close with either the 'triple fault'
or the 'BIOS' (terminal!) reboot methods.
Thirdly, CF9_COND is a total misnomer - it should be something like
CF9_SAFE or CF9_CAREFUL, and 'CF9' should be 'CF9_FORCE' ...
So this patch fixes the worst problems:
- it orders the actual reboot logic to follow the reboot ordering
pattern - it was in a pretty random order before for no good
reason.
- it fixes the CF9 misnomers and uses BOOT_CF9_FORCE and
BOOT_CF9_SAFE flags to make the code more obvious.
- it tries the BIOS reboot method before the PCI reboot method.
(Since 'BIOS' is a terminal reboot method resulting in a hang
if it does not work, this is essentially equivalent to removing
the PCI reboot method from the default reboot chain.)
- just for the miraculous possibility of terminal (resulting
in hang) reboot methods of triple fault or BIOS returning
without having done their job, there's an ordering between
them as well.
Reported-and-bisected-and-tested-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Aubrey <aubrey.li@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Link: http://lkml.kernel.org/r/20140404064120.GB11877@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
When we plug a 3-ring headset on the Dell machine (VID: 0x10ec0255,
SID: 0x1028067f), the headset mic can't be detected, after apply this
patch, the headset mic can work well.
BugLink: https://bugs.launchpad.net/bugs/1297581
Cc: David Henningsson <david.henningsson@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull networking fixes from David Miller:
1) Fix BPF filter validation of netlink attribute accesses, from
Mathias Kruase.
2) Netfilter conntrack generation seqcount not initialized properly,
from Andrey Vagin.
3) Fix comparison mask computation on big-endian in nft_cmp_fast(),
from Patrick McHardy.
4) Properly limit MTU over ipv6, from Eric Dumazet.
5) Fix seccomp system call argument population on 32-bit, from Daniel
Borkmann.
6) skb_network_protocol() should not use hard-coded ETH_HLEN, instead
skb->mac_len needs to be used. From Vlad Yasevich.
7) We have several cases of using socket based communications to
implement a tunnel. For example, some tunnels are encapsulations
over UDP so we use an internal kernel UDP socket to do the
transmits.
These tunnels should behave just like other software devices and
pass the packets on down to the next layer.
Most importantly we want the top-level socket (eg TCP) that created
the traffic to be charged for the SKB memory.
However, once you get into the IP output path, we have code that
assumed that whatever was attached to skb->sk is an IP socket.
To keep the top-level socket being charged for the SKB memory,
whilst satisfying the needs of the IP output path, we now pass in an
explicit 'sk' argument.
From Eric Dumazet.
8) ping_init_sock() leaks group info, from Xiaoming Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
cxgb4: use the correct max size for firmware flash
qlcnic: Fix MSI-X initialization code
ip6_gre: don't allow to remove the fb_tunnel_dev
ipv4: add a sock pointer to dst->output() path.
ipv4: add a sock pointer to ip_queue_xmit()
driver/net: cosa driver uses udelay incorrectly
at86rf230: fix __at86rf230_read_subreg function
at86rf230: remove check if AVDD settled
net: cadence: Add architecture dependencies
net: Start with correct mac_len in skb_network_protocol
Revert "net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer"
cxgb4: Save the correct mac addr for hw-loopback connections in the L2T
net: filter: seccomp: fix wrong decoding of BPF_S_ANC_SECCOMP_LD_W
seccomp: fix populating a0-a5 syscall args in 32-bit x86 BPF
qlcnic: Do not disable SR-IOV when VFs are assigned to VMs
qlcnic: Fix QLogic application/driver interface for virtual NIC configuration
qlcnic: Fix PVID configuration on eSwitch port.
qlcnic: Fix max ring count calculation
qlcnic: Fix to send INIT_NIC_FUNC as first mailbox.
qlcnic: Fix panic due to uninitialzed delayed_work struct in use.
...
After searching for the old property, bail out with -ENODEV
if it was not found.
It is unnecessary to check if oldprop is NULL before removing
its binary file; the check was already done before.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Jiri Kosina
Reyad Attiyat
Benoit Taine
Harald Brinkmann
Olivier Gay
Linus Torvalds
Alexander Shiyan
Corey Minyard
Bodo Stroesser
Jiri Slaby
zhangwei(Jovi)
Shaohua Li
Tomi Valkeinen
Steven Rostedt (Red Hat)
Brian Foster
Eric Sandeen
Dave Chinner
Tony Luck
Kailang Yang
Ingo Molnar
Hui Wang
Guenter Roeck