Allowing watchdog threads to be parked means that we now have the
opportunity of actually seeing persistent parked threads in the output
of /proc/<pid>/stat and /proc/<pid>/status. The existing code reported
such threads as "Running", which is kind-of true if you think of the
case where we park them as part of taking cpus offline. But if we allow
parking them indefinitely, "Running" is pretty misleading, so we report
them as "Sleeping" instead.
We could simply report them with a new string, "Parked", but it feels
like it's a bit risky for userspace to see unexpected new values; the
output is already documented in Documentation/filesystems/proc.txt, and
it seems like a mistake to change that lightly.
The scheduler does report parked tasks with a "P" in debugging output
from sched_show_task() or dump_cpu_task(), but that's a different API.
Similarly, the trace_ctxwake_* routines report a "P" for parked tasks,
but again, different API.
This change seemed slightly cleaner than updating the task_state_array
to have additional rows. TASK_DEAD should be subsumed by the exit_state
bits; TASK_WAKEKILL is just a modifier; and TASK_WAKING can very
reasonably be reported as "Running" (as it is now). Only TASK_PARKED
shows up with unreasonable output here.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change the default behavior of watchdog so it only runs on the
housekeeping cores when nohz_full is enabled at build and boot time.
Allow modifying the set of cores the watchdog is currently running on
with a new kernel.watchdog_cpumask sysctl.
In the current system, the watchdog subsystem runs a periodic timer that
schedules the watchdog kthread to run. However, nohz_full cores are
designed to allow userspace application code running on those cores to
have 100% access to the CPU. So the watchdog system prevents the
nohz_full application code from being able to run the way it wants to,
thus the motivation to suppress the watchdog on nohz_full cores, which
this patchset provides by default.
However, if we disable the watchdog globally, then the housekeeping
cores can't benefit from the watchdog functionality. So we allow
disabling it only on some cores. See Documentation/lockup-watchdogs.txt
for more information.
[jhubbard@nvidia.com: fix a watchdog crash in some configurations]
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch series allows the watchdog to run by default only on the
housekeeping cores when nohz_full is in effect; this seems to be a good
compromise short of turning it off completely (since the nohz_full cores
can't tolerate a watchdog).
To provide customizability, we add /proc/sys/kernel/watchdog_cpumask so
that the set of cores running the watchdog can be tuned to different
values after bootup.
To implement this customizability, we add a new
smpboot_update_cpumask_percpu_thread() API to the smpboot_thread
subsystem that lets us park or unpark "unwanted" threads.
And now that threads can be parked for long periods of time, we tweak the
/proc/<pid>/stat and /proc/<pid>/status code so parked threads aren't
reported as running, which is otherwise confusing.
This patch (of 3):
This change allows some cores to be excluded from running the
smp_hotplug_thread tasks. The following commit to update
kernel/watchdog.c to use this functionality is the motivating example, and
more information on the motivation is provided there.
A new smp_hotplug_thread field is introduced, "cpumask", which is cpumask
field managed by the smpboot subsystem that indicates whether or not the
given smp_hotplug_thread should run on that core; the cpumask is checked
when deciding whether to unpark the thread.
To limit the cpumask to less than cpu_possible, you must call
smpboot_update_cpumask_percpu_thread() after registering.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls. Since sparc does select
ARCH_HAS_SG_CHAIN, it is necessary to use for_each_sg() in order to loop
over each sg element. This also help find problems with drivers that do
not properly initialize their sg tables when CONFIG_DEBUG_SG is enabled.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls. Since parisc doesn't
select ARCH_HAS_SG_CHAIN, it is not necessary to use for_each_sg() in
order to loop over each sg element. But this can help find problems with
drivers that do not properly initialize their sg tables when
CONFIG_DEBUG_SG is enabled.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some functions are only used locally, so mark them as static.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kernel.h macro definition.
Thanks to Julia Lawall for Coccinelle scripting support.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kernel.h macro definition.
Thanks to Julia Lawall for Coccinelle scripting support.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kernel.h macro definition.
Thanks to Julia Lawall for Coccinelle scripting support.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
contig_blocks gotten from ocfs2_extent_map_get_blocks cannot be compared
with clusters_to_alloc. So convert it to clusters first.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: Weiwei Wang <wangww631@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ocfs2_abort_trigger() use bh->b_assoc_map to get sb. But there's no
function to set bh->b_assoc_map in ocfs2, it will trigger NULL pointer
dereference while calling this function. We can get sb from
bh->b_bdev->bd_super instead of b_assoc_map.
[akpm@linux-foundation.org: update comment, per Joseph]
Signed-off-by: joyce.xue <xuejiufei@huawei.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In ocfs2 direct read/write, OCFS2_IOCB_SEM lock type is used to protect
inode->i_alloc_sem rw semaphore lock in the earlier kernel version.
However, in the latest kernel, inode->i_alloc_sem rw semaphore lock is not
used at all, so OCFS2_IOCB_SEM lock type needs to be removed.
Signed-off-by: Weiwei Wang <wangww631@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
jbd2_journal_dirty_metadata may fail. Currently it cannot take care of
non zero return value and just BUG in ocfs2_journal_dirty. This patch is
aborting the handle and journal instead of BUG.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: joyce.xue <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ocfs2_rotate_tree_left() calls __ocfs2_rotate_tree_left() for left
rotation while non-rightmost path containing an empty extent in the leaf
block. __ocfs2_rotate_tree_left() returns -EAGAIN if right subtree having an
empty extent and pass the empty_extent_path to caller. The caller
ocfs2_rotate_tree_left() will restart rotation from the returned path.
It will trigger the BUG_ON(!ocfs2_is_empty_extent) when the et on disk
is as follows:
eb0 is the leaf block of path(say path_a) passed to
ocfs2_rotate_tree_left, which has an empty rec[0].
eb1 is the leaf block of path(say path_b) that just right to path_a, which
has no empty record.
eb2 is the leaf block of path(say path_c) that just right to path_b, which
has an empty rec[0]. And path_c is also the rightmost path.
Now we want to remove the empty rec[0] in eb0:
ocfs2_rotate_tree_left:
-> call __ocfs2_rotate_tree_left with path_a as its input *path*
-> call ocfs2_rotate_subtree_left with path_a as its input
*left_path* and path_b as its input *right_path*. it will move
rec[0] in eb1 to eb0, and rec[0] in eb0 is not empty now.
-> continue to call ocfs2_rotate_subtree_left with path_b as its
input *left_path* and path_c as its input *right_path*, and
return -EAGAIN because eb2 has an empty rec[0]
-> call __ocfs2_rotate_tree_left with path_c as it input, rotate all
records in eb2 to left and return 0.
-> call __ocfs2_rotate_tree_left with path_a as its input, and triggers
the BUG_ON(!ocfs2_is_empty_extent) as the rec[0] in eb0 is not empty.
So the BUG_ON() should be removed and return 0 if rec[0] is no longer an
empty extent.
Signed-off-by: joyce.xue <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ocfs2_figure_merge_contig_type() still returns CONTIG_NONE when some error
occurs which will cause an unpredictable error. So return a proper errno
when ocfs2_figure_merge_contig_type() fails.
Signed-off-by: joyce.xue <xuejiufei@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
__dlm_wait_on_lockres_flags_set() is declared but not implemented and
used. So remove it.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The use of 'status' in __ocfs2_add_entry() can return wrong value.
Some functions' return value in __ocfs2_add_entry(), i.e
ocfs2_journal_access_di() is saved to 'status'. But 'status' is not
used in 'bail' label for returning result of __ocfs2_add_entry().
So use retval instead of status.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Once dio crashed it will leave an entry in orphan dir. And orphan scan
will take care of the clean up. There is a tiny race case that the same
entry will be truncated twice and then trigger the BUG in
ocfs2_del_inode_from_orphan.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
raw_smp_processor_id() is the means of avoiding the runtime preemptibility
check.
[akpm@linux-foundation.org: fix printk warning]
Cc: Joe Perches <joe@perches.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Using a function for __mlog_printk instead of a macro reduces the object
size of built-in.o by about 190KB, or ~18% overall (x86-64 defconfig
with all ocfs2 options)
$ size fs/ocfs2/built-in.o*
text data bss dec hex filename
870954 118471 134408 1123833 1125f9 fs/ocfs2/built-in.o,new
1064081 118071 134408 1316560 1416d0 fs/ocfs2/built-in.o.old
Miscellanea:
- Move the used-once __mlog_cpu_guess statement expression macro to the
masklog.c file above the use in __mlog_printk function
- Simplify the mlog macro moving the and/or logic and level code into
__mlog_printk
[akpm@linux-foundation.org: export __mlog_printk() to other ocfs2 modules]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
config_item_init() is only used in item.c
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kvfree() instead of open-coding it.
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Cc: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
should_send_event is no longer part of struct fsnotify_ops, so remove it.
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls. Since powerpc does
select ARCH_HAS_SG_CHAIN, it is necessary to use for_each_sg() in order
to loop over each sg element. This also help find problems with drivers
that do not properly initialize their sg tables when CONFIG_DEBUG_SG is
enabled.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls. Since metag doesn't
select ARCH_HAS_SG_CHAIN, it is not necessary to use for_each_sg() in
order to loop over each sg element. But this can help find problems
with drivers that do not properly initialize their sg tables when
CONFIG_DEBUG_SG is enabled.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- CPU ops and PSCI (Power State Coordination Interface) refactoring
following the merging of the arm64 ACPI support, together with
handling of Trusted (secure) OS instances
- Using fixmap for permanent FDT mapping, removing the initial dtb
placement requirements (within 512MB from the start of the kernel
image). This required moving the FDT self reservation out of the
memreserve processing
- Idmap (1:1 mapping used for MMU on/off) handling clean-up
- Removing flush_cache_all() - not safe on ARM unless the MMU is off.
Last stages of CPU power down/up are handled by firmware already
- "Alternatives" (run-time code patching) refactoring and support for
immediate branch patching, GICv3 CPU interface access
- User faults handling clean-up
And some fixes:
- Fix for VDSO building with broken ELF toolchains
- Fixing another case of init_mm.pgd usage for user mappings (during
ASID roll-over broadcasting)
- Fix for FPSIMD reloading after CPU hotplug
- Fix for missing syscall trace exit
- Workaround for .inst asm bug
- Compat fix for switching the user tls tpidr_el0 register
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Mostly refactoring/clean-up:
- CPU ops and PSCI (Power State Coordination Interface) refactoring
following the merging of the arm64 ACPI support, together with
handling of Trusted (secure) OS instances
- Using fixmap for permanent FDT mapping, removing the initial dtb
placement requirements (within 512MB from the start of the kernel
image). This required moving the FDT self reservation out of the
memreserve processing
- Idmap (1:1 mapping used for MMU on/off) handling clean-up
- Removing flush_cache_all() - not safe on ARM unless the MMU is off.
Last stages of CPU power down/up are handled by firmware already
- "Alternatives" (run-time code patching) refactoring and support for
immediate branch patching, GICv3 CPU interface access
- User faults handling clean-up
And some fixes:
- Fix for VDSO building with broken ELF toolchains
- Fix another case of init_mm.pgd usage for user mappings (during
ASID roll-over broadcasting)
- Fix for FPSIMD reloading after CPU hotplug
- Fix for missing syscall trace exit
- Workaround for .inst asm bug
- Compat fix for switching the user tls tpidr_el0 register"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (42 commits)
arm64: use private ratelimit state along with show_unhandled_signals
arm64: show unhandled SP/PC alignment faults
arm64: vdso: work-around broken ELF toolchains in Makefile
arm64: kernel: rename __cpu_suspend to keep it aligned with arm
arm64: compat: print compat_sp instead of sp
arm64: mm: Fix freeing of the wrong memmap entries with !SPARSEMEM_VMEMMAP
arm64: entry: fix context tracking for el0_sp_pc
arm64: defconfig: enable memtest
arm64: mm: remove reference to tlb.S from comment block
arm64: Do not attempt to use init_mm in reset_context()
arm64: KVM: Switch vgic save/restore to alternative_insn
arm64: alternative: Introduce feature for GICv3 CPU interface
arm64: psci: fix !CONFIG_HOTPLUG_CPU build warning
arm64: fix bug for reloading FPSIMD state after CPU hotplug.
arm64: kernel thread don't need to save fpsimd context.
arm64: fix missing syscall trace exit
arm64: alternative: Work around .inst assembler bugs
arm64: alternative: Merge alternative-asm.h into alternative.h
arm64: alternative: Allow immediate branch as alternative instruction
arm64: Rework alternate sequence for ARM erratum 845719
...
for silicon that no one owns: these are really new features for
everyone.
* ARM: several features are in progress but missed the 4.2 deadline.
So here is just a smattering of bug fixes, plus enabling the VFIO
integration.
* s390: Some fixes/refactorings/optimizations, plus support for
2GB pages.
* x86: 1) host and guest support for marking kvmclock as a stable
scheduler clock. 2) support for write combining. 3) support for
system management mode, needed for secure boot in guests. 4) a bunch
of cleanups required for 2+3. 5) support for virtualized performance
counters on AMD; 6) legacy PCI device assignment is deprecated and
defaults to "n" in Kconfig; VFIO replaces it. On top of this there are
also bug fixes and eager FPU context loading for FPU-heavy guests.
* Common code: Support for multiple address spaces; for now it is
used only for x86 SMM but the s390 folks also have plans.
There are some x86 conflicts, one with the rc8 pull request and
the rest with Ingo's FPU rework.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull first batch of KVM updates from Paolo Bonzini:
"The bulk of the changes here is for x86. And for once it's not for
silicon that no one owns: these are really new features for everyone.
Details:
- ARM:
several features are in progress but missed the 4.2 deadline.
So here is just a smattering of bug fixes, plus enabling the
VFIO integration.
- s390:
Some fixes/refactorings/optimizations, plus support for 2GB
pages.
- x86:
* host and guest support for marking kvmclock as a stable
scheduler clock.
* support for write combining.
* support for system management mode, needed for secure boot in
guests.
* a bunch of cleanups required for the above
* support for virtualized performance counters on AMD
* legacy PCI device assignment is deprecated and defaults to "n"
in Kconfig; VFIO replaces it
On top of this there are also bug fixes and eager FPU context
loading for FPU-heavy guests.
- Common code:
Support for multiple address spaces; for now it is used only for
x86 SMM but the s390 folks also have plans"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (124 commits)
KVM: s390: clear floating interrupt bitmap and parameters
KVM: x86/vPMU: Enable PMU handling for AMD PERFCTRn and EVNTSELn MSRs
KVM: x86/vPMU: Implement AMD vPMU code for KVM
KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch
KVM: x86/vPMU: introduce kvm_pmu_msr_idx_to_pmc
KVM: x86/vPMU: reorder PMU functions
KVM: x86/vPMU: whitespace and stylistic adjustments in PMU code
KVM: x86/vPMU: use the new macros to go between PMC, PMU and VCPU
KVM: x86/vPMU: introduce pmu.h header
KVM: x86/vPMU: rename a few PMU functions
KVM: MTRR: do not map huge page for non-consistent range
KVM: MTRR: simplify kvm_mtrr_get_guest_memory_type
KVM: MTRR: introduce mtrr_for_each_mem_type
KVM: MTRR: introduce fixed_mtrr_addr_* functions
KVM: MTRR: sort variable MTRRs
KVM: MTRR: introduce var_mtrr_range
KVM: MTRR: introduce fixed_mtrr_segment table
KVM: MTRR: improve kvm_mtrr_get_guest_memory_type
KVM: MTRR: do not split 64 bits MSR content
KVM: MTRR: clean up mtrr default type
...
- Disable the 32-bit vdso when building LE, so we can build with a 64-bit only
toolchain.
- EEH fixes from Gavin & Richard.
- Enable the sys_kcmp syscall from Laurent.
- Sysfs control for fastsleep workaround from Shreyas.
- Expose OPAL events as an irq chip by Alistair.
- MSI ops moved to pci_controller_ops by Daniel.
- Fix for kernel to userspace backtraces for perf from Anton.
- Merge pseries and pseries_le defconfigs from Cyril.
- CXL in-kernel API from Mikey.
- OPAL prd driver from Jeremy.
- Fix for DSCR handling & tests from Anshuman.
- Powernv flash mtd driver from Cyril.
- Dynamic DMA Window support on powernv from Alexey.
- LLVM clang fixes & workarounds from Anton.
- Reworked version of the patch to abort syscalls when transactional.
- Fix the swap encoding to support 4TB, from Aneesh.
- Various fixes as usual.
- Freescale updates from Scott: Highlights include more 8xx optimizations, an
e6500 hugetlb optimization, QMan device tree nodes, t1024/t1023 support, and
various fixes and cleanup.
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Merge tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc updates from Michael Ellerman:
- disable the 32-bit vdso when building LE, so we can build with a
64-bit only toolchain.
- EEH fixes from Gavin & Richard.
- enable the sys_kcmp syscall from Laurent.
- sysfs control for fastsleep workaround from Shreyas.
- expose OPAL events as an irq chip by Alistair.
- MSI ops moved to pci_controller_ops by Daniel.
- fix for kernel to userspace backtraces for perf from Anton.
- merge pseries and pseries_le defconfigs from Cyril.
- CXL in-kernel API from Mikey.
- OPAL prd driver from Jeremy.
- fix for DSCR handling & tests from Anshuman.
- Powernv flash mtd driver from Cyril.
- dynamic DMA Window support on powernv from Alexey.
- LLVM clang fixes & workarounds from Anton.
- reworked version of the patch to abort syscalls when transactional.
- fix the swap encoding to support 4TB, from Aneesh.
- various fixes as usual.
- Freescale updates from Scott: Highlights include more 8xx
optimizations, an e6500 hugetlb optimization, QMan device tree nodes,
t1024/t1023 support, and various fixes and cleanup.
* tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (180 commits)
cxl: Fix typo in debug print
cxl: Add CXL_KERNEL_API config option
powerpc/powernv: Fix wrong IOMMU table in pnv_ioda_setup_bus_dma()
powerpc/mm: Change the swap encoding in pte.
powerpc/mm: PTE_RPN_MAX is not used, remove the same
powerpc/tm: Abort syscalls in active transactions
powerpc/iommu/ioda2: Enable compile with IOV=on and IOMMU_API=off
powerpc/include: Add opal-prd to installed uapi headers
powerpc/powernv: fix construction of opal PRD messages
powerpc/powernv: Increase opal-irqchip initcall priority
powerpc: Make doorbell check preemption safe
powerpc/powernv: pnv_init_idle_states() should only run on powernv
macintosh/nvram: Remove as unused
powerpc: Don't use gcc specific options on clang
powerpc: Don't use -mno-strict-align on clang
powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it
powerpc: Only use -mabi=altivec if toolchain supports it
powerpc: Fix duplicate const clang warning in user access code
vfio: powerpc/spapr: Support Dynamic DMA windows
vfio: powerpc/spapr: Register memory and define IOMMU v2
...
Pull s390 updates from Martin Schwidefsky:
"Pretty boring for a merge window pull.
One change in behaviour is the patch for dasd driver, the module which
provides the diagnose discipline is now loaded automatically.
The SCLP code got a nice cleanup, a new global structure replaces a
bunch of accessor functions.
And a couple of random, small improvements"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: improve handling of hotplug event 0x301
s390/setup: fix DMA_API_DEBUG warnings
s390/zcrypt: remove obsolete __constant
s390/keyboard: avoid off-by-one when using strnlen_user()
s390/sclp: pass timeout as HZ independent value
s390/mm: s/specifiation/specification/, s/an specification/a specification/
s390/sclp: Use DECLARE_BITMAP
s390/dasd: Enable automatic loading of dasd_diag_mod
s390/sclp: move sclp_facilities into "struct sclp"
s390/sclp: get rid of sclp_get_mtid() and sclp_get_mtid_max()
s390/sclp: unify basic sclp access by exposing "struct sclp"
s390/sclp: prepare smp_fill_possible_mask for global "struct sclp"
This time with bigger changes than usual:
* A new IOMMU driver for the ARM SMMUv3. This IOMMU is pretty
different from SMMUv1 and v2 in that it is configured through
in-memory structures and not through the MMIO register region.
The ARM SMMUv3 also supports IO demand paging for PCI devices
with PRI/PASID capabilities, but this is not implemented in
the driver yet.
* Lots of cleanups and device-tree support for the Exynos IOMMU
driver. This is part of the effort to bring Exynos DRM support
upstream.
* Introduction of default domains into the IOMMU core code. The
rationale behind this is to move functionalily out of the
IOMMU drivers to common code to get to a unified behavior
between different drivers.
The patches here introduce a default domain for iommu-groups
(isolation groups). A device will now always be attached to a
domain, either the default domain or another domain handled by
the device driver. The IOMMU drivers have to be modified to
make use of that feature. So long the AMD IOMMU driver is
converted, with others to follow.
* Patches for the Intel VT-d drvier to fix DMAR faults that
happen when a kdump kernel boots. When the kdump kernel boots
it re-initializes the IOMMU hardware, which destroys all
mappings from the crashed kernel. As this happens before
the endpoint devices are re-initialized, any in-flight DMA
causes a DMAR fault. These faults cause PCI master aborts,
which some devices can't handle properly and go into an
undefined state, so that the device driver in the kdump kernel
fails to initialize them and the dump fails.
This is now fixed by copying over the mapping structures (only
context tables and interrupt remapping tables) from the old
kernel and keep the old mappings in place until the device
driver of the new kernel takes over. This emulates the the
behavior without an IOMMU to the best degree possible.
* A couple of other small fixes and cleanups.
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Merge tag 'iommu-updates-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"This time with bigger changes than usual:
- A new IOMMU driver for the ARM SMMUv3.
This IOMMU is pretty different from SMMUv1 and v2 in that it is
configured through in-memory structures and not through the MMIO
register region. The ARM SMMUv3 also supports IO demand paging for
PCI devices with PRI/PASID capabilities, but this is not
implemented in the driver yet.
- Lots of cleanups and device-tree support for the Exynos IOMMU
driver. This is part of the effort to bring Exynos DRM support
upstream.
- Introduction of default domains into the IOMMU core code.
The rationale behind this is to move functionalily out of the IOMMU
drivers to common code to get to a unified behavior between
different drivers. The patches here introduce a default domain for
iommu-groups (isolation groups).
A device will now always be attached to a domain, either the
default domain or another domain handled by the device driver. The
IOMMU drivers have to be modified to make use of that feature. So
long the AMD IOMMU driver is converted, with others to follow.
- Patches for the Intel VT-d drvier to fix DMAR faults that happen
when a kdump kernel boots.
When the kdump kernel boots it re-initializes the IOMMU hardware,
which destroys all mappings from the crashed kernel. As this
happens before the endpoint devices are re-initialized, any
in-flight DMA causes a DMAR fault. These faults cause PCI master
aborts, which some devices can't handle properly and go into an
undefined state, so that the device driver in the kdump kernel
fails to initialize them and the dump fails.
This is now fixed by copying over the mapping structures (only
context tables and interrupt remapping tables) from the old kernel
and keep the old mappings in place until the device driver of the
new kernel takes over. This emulates the the behavior without an
IOMMU to the best degree possible.
- A couple of other small fixes and cleanups"
* tag 'iommu-updates-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (69 commits)
iommu/amd: Handle large pages correctly in free_pagetable
iommu/vt-d: Don't disable IR when it was previously enabled
iommu/vt-d: Make sure copied over IR entries are not reused
iommu/vt-d: Copy IR table from old kernel when in kdump mode
iommu/vt-d: Set IRTA in intel_setup_irq_remapping
iommu/vt-d: Disable IRQ remapping in intel_prepare_irq_remapping
iommu/vt-d: Move QI initializationt to intel_setup_irq_remapping
iommu/vt-d: Move EIM detection to intel_prepare_irq_remapping
iommu/vt-d: Enable Translation only if it was previously disabled
iommu/vt-d: Don't disable translation prior to OS handover
iommu/vt-d: Don't copy translation tables if RTT bit needs to be changed
iommu/vt-d: Don't do early domain assignment if kdump kernel
iommu/vt-d: Allocate si_domain in init_dmars()
iommu/vt-d: Mark copied context entries
iommu/vt-d: Do not re-use domain-ids from the old kernel
iommu/vt-d: Copy translation tables from old kernel
iommu/vt-d: Detect pre enabled translation
iommu/vt-d: Make root entry visible for hardware right after allocation
iommu/vt-d: Init QI before root entry is allocated
iommu/vt-d: Cleanup log messages
...
JFFS2
* fix a theoretical unbalanced locking issue; the lock handling was a bit
unclean, but AFAICT, it didn't actually lead to real deadlocks
NAND
* brcmnand driver: new driver supporting NAND controller found originally on
Broadcom STB SoCs (BCM7xxx), but now also found on BCM63xxx, iProc (e.g.,
Cygnus, BCM5301x), BCM3xxx, and more
* Begin factoring out BBT code so it can be shared between traditional
(parallel) NAND drivers and upcoming SPI NAND drivers (WIP)
* Add common DT-based init support, so nand_base can pick up some flash
properties automatically, using established common NAND DT properties
* mxc_nand: support 8-bit ECC
* pxa3xx_nand:
- fix build for ARM64
- use a jiffies-based timeout
SPI NOR
* Add a few new IDs
* Clear out some unnecessary entries
* Make sure SECT_4K flags are correct for all (?) entries
Core
* Fix mtd->usecount race conditions (BUG_ON())
* Switch to modern PM ops
Other
* CFI: save code space by de-inlining large functions
* Clean up some partition parser selection code across several drivers
* Various miscellaneous changes, mostly minor
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Merge tag 'for-linus-20150623' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"JFFS2:
- fix a theoretical unbalanced locking issue; the lock handling was a
bit unclean, but AFAICT, it didn't actually lead to real deadlocks
NAND:
- brcmnand driver: new driver supporting NAND controller found
originally on Broadcom STB SoCs (BCM7xxx), but now also found on
BCM63xxx, iProc (e.g., Cygnus, BCM5301x), BCM3xxx, and more
- begin factoring out BBT code so it can be shared between
traditional (parallel) NAND drivers and upcoming SPI NAND drivers
(WIP)
- add common DT-based init support, so nand_base can pick up some
flash properties automatically, using established common NAND DT
properties
- mxc_nand: support 8-bit ECC
- pxa3xx_nand:
* fix build for ARM64
* use a jiffies-based timeout
SPI NOR:
- add a few new IDs
- clear out some unnecessary entries
- make sure SECT_4K flags are correct for all (?) entries
Core:
- fix mtd->usecount race conditions (BUG_ON())
- switch to modern PM ops
Other:
- CFI: save code space by de-inlining large functions
- clean up some partition parser selection code across several
drivers
- various miscellaneous changes, mostly minor"
* tag 'for-linus-20150623' of git://git.infradead.org/linux-mtd: (57 commits)
mtd: docg3: Fix kasprintf() usage
mtd: docg3: Don't leak docg3->bbt in error path
mtd: nandsim: Fix kasprintf() usage
mtd: cs553x_nand: Fix kasprintf() usage
mtd: r852: Fix device_create_file() usage
mtd: brcmnand: drop unnecessary initialization
mtd: propagate error codes from add_mtd_device()
mtd: diskonchip: remove two-phase partitioning / registration
mtd: dc21285: use raw spinlock functions for nw_gpio_lock
mtd: chips: fixup dependencies, to prevent build error
mtd: cfi_cmdset_0002: Initialize datum before calling map_word_load_partial
mtd: cfi: deinline large functions
mtd: lantiq-flash: use default partition parsers
mtd: plat_nand: use default partition probe
mtd: nand: correct indentation within conditional
mtd: remove incorrect file name
mtd: blktrans: use better error code for unimplemented ioctl()
mtd: maps: Spelling s/reseved/reserved/
mtd: blktrans: change blktrans_getgeo return value
mtd: mxc_nand: generate nand_ecclayout for 8 bit ECC
...
Another fairly quiet release, some new drivers with generic handling for
minor features but nothing that makes a substantial difference outside
of the subsystem or for most boards:
- Support for a bunch of new parameters which are present on enough
regulators to be worth having generic handling for in the framework.
- Fixes for some issues with printing constraints during boot which
should probably have gone in for v4.1 but didn't.
- New drivers for Dialog DA9062, Maxim MAX77621 and Qualcomm SPMI regulators.
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Merge tag 'regulator-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Another fairly quiet release, some new drivers with generic handling
for minor features but nothing that makes a substantial difference
outside of the subsystem or for most boards:
- support for a bunch of new parameters which are present on enough
regulators to be worth having generic handling for in the
framework.
- fixes for some issues with printing constraints during boot which
should probably have gone in for v4.1 but didn't.
- new drivers for Dialog DA9062, Maxim MAX77621 and Qualcomm SPMI
regulators"
* tag 'regulator-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (45 commits)
regulator: qcom_spmi: Fix calculating number of voltages
regulator: qcom_spmi: Add missing braces for aligned code
regulator: fix simple_return.cocci warnings
regulator: Add QCOM SPMI regulator driver
regulator: Add docbook for soft start
regulator: Add input current limit support
regulator: Add soft start support
regulator: Add pull down support
regulator: Add system_load constraint
regulator: max8973: Fix up ramp_delay for MAX8973_RAMP_25mV_PER_US case
regulator: core: replace sprintf with scnprintf
regulator: core: fix constraints output buffer
regulator: core: Don't corrupt display when printing uV offsets
regulator: max8973: add support for MAX77621
regulator: max8973: configure ramp delay through callback
regulator: pwm-regulator: Diffientiate between dev (device) and rdev (regulator_dev)
regulator: pwm-regulator: Remove superfluous is_enabled check
regulator: pwm-regulator: Remove unnecessary descriptor attribute from ddata
regulator: core: Don't spew backtraces on duplicate sysfs
regulator: da9063: Fix up irq leak
...
No framework updates for the SPI API this time around aside from one
small fix, just driver improvments. Some highlights include:
- New driver support for CSR USP, Mikrotik RB4xx and Zynq GQSPI
controllers.
- Modernisation of the OMAP McSPI controller driver, moving it to
current APIs to enable support for a wider range of client drivers.
- DMA support for the bcm2835 controller.
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Merge tag 'spi-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"No framework updates for the SPI API this time around aside from one
small fix, just driver improvments. Some highlights include:
- New driver support for CSR USP, Mikrotik RB4xx and Zynq GQSPI
controllers.
- Modernisation of the OMAP McSPI controller driver, moving it to
current APIs to enable support for a wider range of client drivers.
- DMA support for the bcm2835 controller"
* tag 'spi-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (60 commits)
spi: zynq: Remove execute bit
spi: atmel: add support to FIFOs
spi: atmel: update DT bindings documentation
spi: spi-fsl-dspi: Update DT binding documentation
spi: pxa2xx: Constify ACPI device ids
spi: Add support for Zynq Ultrascale+ MPSoC GQSPI controller
spi: zynq: Add DT bindings documentation for Zynq Ultrascale+ MPSoC GQSPI controller
spi: fsl-dspi: Use pinctrl PM helpers
spi: davinci: change the lower limit of pre-scale divider to 1
spi: spi-fsl-dspi: Change the way of increasing spi_message->actual_length
spi: spi-fsl-dspi: Enable TCF interrupt mode support
spi: atmel: add support for the internal chip-select of the spi controller
spi: spi-pxa2xx: remove legacy PXA DMA bits
spi: pxa2xx: Make LPSS SPI general register optional
spi: pxa2xx: Prepare for new Intel LPSS SPI type
spi: pxa2xx: Differentiate Intel LPSS types
spi: restore rx/tx_buf in case of unset CONFIG_HAS_DMA
spi: rspi: Re-do the returning value of qspi_transfer_out_in
spi: rspi: modify the name of "qspi_trigger_transfer_out_int" function
spi: orion: Fix extended baud rates for each Armada SoCs
...
As well as a few fixes and updates for API changes there's two new
features for the API:
- Better support for handling a reset of the underlying hardware,
marking the register map as needing a resync to the device when
we need to do that automatically.
- Support for querying the size and stride of the register map,
allowing higher level frameworks to configure themselves more
readily.
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Merge tag 'regmap-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"As well as a few fixes and updates for API changes there's two new
features for the API:
- Better support for handling a reset of the underlying hardware,
marking the register map as needing a resync to the device when we
need to do that automatically
- Support for querying the size and stride of the register map,
allowing higher level frameworks to configure themselves more
readily"
* tag 'regmap-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Fix possible shift overflow in regmap_field_init()
regmap: Fix regmap_bulk_read in BE mode
regmap: kill off set_irq_flags usage
regmap: irq: Fixed a typo error
regmap: drop unneeded goto
regmap: Introduce regmap_get_reg_stride
regmap: Introduce regmap_get_max_register
regmap: Use regcache_mark_dirty() to indicate power loss or reset
regmap: Add a helper function for regcache sync test
regmap: Constify irq_domain_ops
* New charger drivers: BQ24257, BQ25890, AXP288, RT9455
* MAX17042 battery: add health & temperature support
* BQ2415x charger: add ACPI support
* misc. fixes and cleanups
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Merge tag 'for-4.2' of git://git.infradead.org/battery-2.6
Pull power supply and reset updates from Sebastian Reichel:
- new charger drivers: BQ24257, BQ25890, AXP288, RT9455
- MAX17042 battery: add health & temperature support
- BQ2415x charger: add ACPI support
- misc fixes and cleanups
* tag 'for-4.2' of git://git.infradead.org/battery-2.6: (32 commits)
power_supply: Correct kerneldoc copy paste errors
wm831x_power: Fix off-by-one at free_irq()
power_supply: rt9455_charger: Fix error reported by static analysis tool
power_supply: bq24257: use flags argument of devm_gpiod_get
power_supply: bq25890: use flags argument of devm_gpiod_get
sbs-battery: add option to always register battery
power: Add devm_power_supply_get_by_phandle() helper function
power_supply: max17042: Add OF support for setting thresholds
power_supply: sysfs: Bring back write to writeable properties
power_supply: rt9455_charger: Check if CONFIG_USB_PHY is enabled
power: reset: gpio-restart: increase priority slightly
power_supply: bq25890: make chip_id int
power_supply: Add support for Richtek RT9455 battery charger
Documentation: devicetree: Add Richtek RT9455 bindings
of: Add vendor prefix for Richtek Technology Corporation
power_supply: 88pm860x_charger: Do not call free_irq() twice
power: bq24190_charger: Change first_time flag reset condition
power: axp288_charger: axp288 charger driver
power: max17042_battery: add HEALTH and TEMP_* properties support
power_supply: Add support for TI BQ25890 charger chip
...
This is the usual grab bag of driver updates (lpfc, hpsa,
megaraid_sas, cxgbi, be2iscsi) plus an assortment of minor updates.
There are also one new driver: the Cisco snic; the advansys driver has
been rewritten to get rid of the warning about converting it to the
DMA API, the tape statistics patch got in and finally, there's a
resuffle of SCSI header files to separate more cleanly initiator from
target mode (and better share the common definitions).
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is the usual grab bag of driver updates (lpfc, hpsa,
megaraid_sas, cxgbi, be2iscsi) plus an assortment of minor updates.
There is also one new driver: the Cisco snic. The advansys driver has
been rewritten to get rid of the warning about converting it to the
DMA API, the tape statistics patch got in and finally, there's a
resuffle of SCSI header files to separate more cleanly initiator from
target mode (and better share the common definitions)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (156 commits)
snic: driver for Cisco SCSI HBA
qla2xxx: Fix indentation
qla2xxx: Comment out unreachable code
fusion: remove dead MTRR code
advansys: fix compilation errors and warnings when CONFIG_PCI is not set
mptsas: fix depth param in scsi_track_queue_full
megaraid: fix irq setup process regression
lpfc: Update version to 10.7.0.0 for upstream patch set.
lpfc: Fix to drop PLOGIs from fabric node till LOGO processing completes
lpfc: Fix scsi task management error message.
lpfc: Fix cq_id masking problem.
lpfc: Fix scsi prep dma buf error.
lpfc: Add support for using block multi-queue
lpfc: Devices are not discovered during takeaway/giveback testing
lpfc: Fix vport deletion failure.
lpfc: Check for active portpeerbeacon.
lpfc: Update driver version for upstream patch set 10.6.0.1.
lpfc: Change buffer pool empty message to miscellaneous category
lpfc: Fix incorrect log message reported for empty FCF record.
lpfc: Fix rport leak.
...
- A large cleanup of how device capabilities are checked for various
features
- Additional cleanups in the MAD processing
- Update to the srp driver
- Creation and use of centralized log message helpers
- Add const to a number of args to calls and clean up call chain
- Add support for extended cq create verb
- Add support for timestamps on cq completion
- Add support for processing OPA MAD packets
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
- a large cleanup of how device capabilities are checked for various
features
- additional cleanups in the MAD processing
- update to the srp driver
- creation and use of centralized log message helpers
- add const to a number of args to calls and clean up call chain
- add support for extended cq create verb
- add support for timestamps on cq completion
- add support for processing OPA MAD packets
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (92 commits)
IB/mad: Add final OPA MAD processing
IB/mad: Add partial Intel OPA MAD support
IB/mad: Add partial Intel OPA MAD support
IB/core: Add OPA MAD core capability flag
IB/mad: Add support for additional MAD info to/from drivers
IB/mad: Convert allocations from kmem_cache to kzalloc
IB/core: Add ability for drivers to report an alternate MAD size.
IB/mad: Support alternate Base Versions when creating MADs
IB/mad: Create a generic helper for DR forwarding checks
IB/mad: Create a generic helper for DR SMP Recv processing
IB/mad: Create a generic helper for DR SMP Send processing
IB/mad: Split IB SMI handling from MAD Recv handler
IB/mad cleanup: Generalize processing of MAD data
IB/mad cleanup: Clean up function params -- find_mad_agent
IB/mlx4: Add support for CQ time-stamping
IB/mlx4: Add mmap call to map the hardware clock
IB/core: Pass hardware specific data in query_device
IB/core: Add timestamp_mask and hca_core_clock to query_device
IB/core: Extend ib_uverbs_create_cq
IB/core: Add CQ creation time-stamping flag
...
Pull clkdev updates from Russell King:
"This series addresses some breakage in clkdev caused by a previous
patch set from the clk tree which introduced per-user clk structures.
This basically renamed the existing 'struct clk' to 'struct clk_hw',
and introduced a new 'struct clk'.
This change will break anyone using clk_add_alias() with the common
clk code enabled. Thankfully, the intersection of users of
clk_add_alias() and those using the common clk code is practically
zero, but this is something which should be fixed to keep the code
sane.
The problem is that clk_add_alias() does this:
r = clk_get(...);
l = clkdev_alloc(r, ...);
clk_put(...);
which causes the alias to store a pointer to 'r', which has been
freed.
The original patch set tried to work around this problem incorrectly -
at clk_get() time, it tried to convert the struct clk to a struct
clk_hw, and then creating a new struct clk from that. Clearly, if the
original struct clk has been freed, then we have a use-after-free bug.
We have other places in the tree which do something similar, so this
series also addresses those locations too.
This series addresses this problem by converting clkdev to store and
use the clk_hw pointer. This allows clk_get() to only have to create
it's per-user struct clk from the clk_hw. We can also get to the
desired clk_hw at clk_add_alias() or clk lookup creation time, when
the struct clk is "alive".
We also perform some cleanups of the code:
- replacing looped calls to clkdev_add() with clkdev_add_table()
- replacing open-coded lookup allocation (which should have been
using clkdev_alloc()) and subsequent clkdev_add() with
clkdev_create()
- replacing open-coded clk_add_alias() with clk_add_alias()"
* 'for-linus-clk' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
clk: s2mps11: use clkdev_create()
ASoC: migor: use clkdev_create()
ARM: omap2: use clkdev_add_alias()
ARM: omap2: use clkdev_create()
ARM: orion: use clkdev_create()
ARM: lpc32xx: convert to use clkdev_add_table()
SH: use clkdev_add_table()
clkdev: add clkdev_create() helper
clkdev: const-ify connection id to clk_add_alias()
clkdev: get rid of redundant clk_add_alias() prototype in linux/clk.h
clkdev: drop __init from clkdev_add_table()
clk: update clk API documentation to clarify clk_round_rate()
clkdev: use clk_hw internally
- ACPICA update to upstream revision 20150515 including basic
support for ACPI 6 features: new ACPI tables introduced by
ACPI 6 (STAO, XENV, WPBT, NFIT, IORT), changes related to the
other tables (DTRM, FADT, LPIT, MADT), new predefined names
(_BTH, _CR3, _DSD, _LPI, _MTL, _PRR, _RDI, _RST, _TFP, _TSN),
fixes and cleanups (Bob Moore, Lv Zheng).
- ACPI device power management core code update to follow ACPI 6
which reflects the ACPI device power management implementation
in Windows (Rafael J Wysocki).
- Rework of the backlight interface selection logic to reduce the
number of kernel command line options and improve the handling
of DMI quirks that may be involved in that and to make the
code generally more straightforward (Hans de Goede).
- Fixes for the ACPI Embedded Controller (EC) driver related to
the handling of EC transactions (Lv Zheng).
- Fix for a regression related to the ACPI resources management
and resulting from a recent change of ACPI initialization code
ordering (Rafael J Wysocki).
- Fix for a system initialization regression related to ACPI
introduced during the 3.14 cycle and caused by running the
code that switches the platform over to the ACPI mode too
early in the initialization sequence (Rafael J Wysocki).
- Support for the ACPI _CCA device configuration object related
to DMA cache coherence (Suravee Suthikulpanit).
- ACPI/APEI fixes and cleanups (Jiri Kosina, Borislav Petkov).
- ACPI battery driver cleanups (Luis Henriques, Mathias Krause).
- ACPI processor driver cleanups (Hanjun Guo).
- Cleanups and documentation update related to the ACPI device
properties interface based on _DSD (Rafael J Wysocki).
- ACPI device power management fixes (Rafael J Wysocki).
- Assorted cleanups related to ACPI (Dominik Brodowski. Fabian
Frederick, Lorenzo Pieralisi, Mathias Krause, Rafael J Wysocki).
- Fix for a long-standing issue causing General Protection Faults
to be generated occasionally on return to user space after resume
from ACPI-based suspend-to-RAM on 32-bit x86 (Ingo Molnar).
- Fix to make the suspend core code return -EBUSY consistently in
all cases when system suspend is aborted due to wakeup detection
(Ruchi Kandoi).
- Support for automated device wakeup IRQ handling allowing drivers
to make their PM support more starightforward (Tony Lindgren).
- New tracepoints for suspend-to-idle tracing and rework of the
prepare/complete callbacks tracing in the PM core (Todd E Brandt,
Rafael J Wysocki).
- Wakeup sources framework enhancements (Jin Qian).
- New macro for noirq system PM callbacks (Grygorii Strashko).
- Assorted cleanups related to system suspend (Rafael J Wysocki).
- cpuidle core cleanups to make the code more efficient (Rafael J
Wysocki).
- powernv/pseries cpuidle driver update (Shilpasri G Bhat).
- cpufreq core fixes related to CPU online/offline that should
reduce the overhead of these operations quite a bit, unless the
CPU in question is physically going away (Viresh Kumar, Saravana
Kannan).
- Serialization of cpufreq governor callbacks to avoid race
conditions in some cases (Viresh Kumar).
- intel_pstate driver fixes and cleanups (Doug Smythies, Prarit
Bhargava, Joe Konno).
- cpufreq driver (arm_big_little, cpufreq-dt, qoriq) updates (Sudeep
Holla, Felipe Balbi, Tang Yuantian).
- Assorted cleanups in cpufreq drivers and core (Shailendra Verma,
Fabian Frederick, Wang Long).
- New Device Tree bindings for representing Operating Performance
Points (Viresh Kumar).
- Updates for the common clock operations support code in the PM
core (Rajendra Nayak, Geert Uytterhoeven).
- PM domains core code update (Geert Uytterhoeven).
- Intel Knights Landing support for the RAPL (Running Average Power
Limit) power capping driver (Dasaratharaman Chandramouli).
- Fixes related to the floor frequency setting on Atom SoCs in the
RAPL power capping driver (Ajay Thomas).
- Runtime PM framework documentation update (Ben Dooks).
- cpupower tool fix (Herton R Krzesinski).
/
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Merge tag 'pm+acpi-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"The rework of backlight interface selection API from Hans de Goede
stands out from the number of commits and the number of affected
places perspective. The cpufreq core fixes from Viresh Kumar are
quite significant too as far as the number of commits goes and because
they should reduce CPU online/offline overhead quite a bit in the
majority of cases.
From the new featues point of view, the ACPICA update (to upstream
revision 20150515) adding support for new ACPI 6 material to ACPICA is
the one that matters the most as some new significant features will be
based on it going forward. Also included is an update of the ACPI
device power management core to follow ACPI 6 (which in turn reflects
the Windows' device PM implementation), a PM core extension to support
wakeup interrupts in a more generic way and support for the ACPI _CCA
device configuration object.
The rest is mostly fixes and cleanups all over and some documentation
updates, including new DT bindings for Operating Performance Points.
There is one fix for a regression introduced in the 4.1 cycle, but it
adds quite a number of lines of code, it wasn't really ready before
Thursday and you were on vacation, so I refrained from pushing it on
the last minute for 4.1.
Specifics:
- ACPICA update to upstream revision 20150515 including basic support
for ACPI 6 features: new ACPI tables introduced by ACPI 6 (STAO,
XENV, WPBT, NFIT, IORT), changes related to the other tables (DTRM,
FADT, LPIT, MADT), new predefined names (_BTH, _CR3, _DSD, _LPI,
_MTL, _PRR, _RDI, _RST, _TFP, _TSN), fixes and cleanups (Bob Moore,
Lv Zheng).
- ACPI device power management core code update to follow ACPI 6
which reflects the ACPI device power management implementation in
Windows (Rafael J Wysocki).
- rework of the backlight interface selection logic to reduce the
number of kernel command line options and improve the handling of
DMI quirks that may be involved in that and to make the code
generally more straightforward (Hans de Goede).
- fixes for the ACPI Embedded Controller (EC) driver related to the
handling of EC transactions (Lv Zheng).
- fix for a regression related to the ACPI resources management and
resulting from a recent change of ACPI initialization code ordering
(Rafael J Wysocki).
- fix for a system initialization regression related to ACPI
introduced during the 3.14 cycle and caused by running the code
that switches the platform over to the ACPI mode too early in the
initialization sequence (Rafael J Wysocki).
- support for the ACPI _CCA device configuration object related to
DMA cache coherence (Suravee Suthikulpanit).
- ACPI/APEI fixes and cleanups (Jiri Kosina, Borislav Petkov).
- ACPI battery driver cleanups (Luis Henriques, Mathias Krause).
- ACPI processor driver cleanups (Hanjun Guo).
- cleanups and documentation update related to the ACPI device
properties interface based on _DSD (Rafael J Wysocki).
- ACPI device power management fixes (Rafael J Wysocki).
- assorted cleanups related to ACPI (Dominik Brodowski, Fabian
Frederick, Lorenzo Pieralisi, Mathias Krause, Rafael J Wysocki).
- fix for a long-standing issue causing General Protection Faults to
be generated occasionally on return to user space after resume from
ACPI-based suspend-to-RAM on 32-bit x86 (Ingo Molnar).
- fix to make the suspend core code return -EBUSY consistently in all
cases when system suspend is aborted due to wakeup detection (Ruchi
Kandoi).
- support for automated device wakeup IRQ handling allowing drivers
to make their PM support more starightforward (Tony Lindgren).
- new tracepoints for suspend-to-idle tracing and rework of the
prepare/complete callbacks tracing in the PM core (Todd E Brandt,
Rafael J Wysocki).
- wakeup sources framework enhancements (Jin Qian).
- new macro for noirq system PM callbacks (Grygorii Strashko).
- assorted cleanups related to system suspend (Rafael J Wysocki).
- cpuidle core cleanups to make the code more efficient (Rafael J
Wysocki).
- powernv/pseries cpuidle driver update (Shilpasri G Bhat).
- cpufreq core fixes related to CPU online/offline that should reduce
the overhead of these operations quite a bit, unless the CPU in
question is physically going away (Viresh Kumar, Saravana Kannan).
- serialization of cpufreq governor callbacks to avoid race
conditions in some cases (Viresh Kumar).
- intel_pstate driver fixes and cleanups (Doug Smythies, Prarit
Bhargava, Joe Konno).
- cpufreq driver (arm_big_little, cpufreq-dt, qoriq) updates (Sudeep
Holla, Felipe Balbi, Tang Yuantian).
- assorted cleanups in cpufreq drivers and core (Shailendra Verma,
Fabian Frederick, Wang Long).
- new Device Tree bindings for representing Operating Performance
Points (Viresh Kumar).
- updates for the common clock operations support code in the PM core
(Rajendra Nayak, Geert Uytterhoeven).
- PM domains core code update (Geert Uytterhoeven).
- Intel Knights Landing support for the RAPL (Running Average Power
Limit) power capping driver (Dasaratharaman Chandramouli).
- fixes related to the floor frequency setting on Atom SoCs in the
RAPL power capping driver (Ajay Thomas).
- runtime PM framework documentation update (Ben Dooks).
- cpupower tool fix (Herton R Krzesinski)"
* tag 'pm+acpi-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (194 commits)
cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state
x86: Load __USER_DS into DS/ES after resume
PM / OPP: Add binding for 'opp-suspend'
PM / OPP: Allow multiple OPP tables to be passed via DT
PM / OPP: Add new bindings to address shortcomings of existing bindings
ACPI: Constify ACPI device IDs in documentation
ACPI / enumeration: Document the rules regarding the PRP0001 device ID
ACPI / video: Make acpi_video_unregister_backlight() private
acpi-video-detect: Remove old API
toshiba-acpi: Port to new backlight interface selection API
thinkpad-acpi: Port to new backlight interface selection API
sony-laptop: Port to new backlight interface selection API
samsung-laptop: Port to new backlight interface selection API
msi-wmi: Port to new backlight interface selection API
msi-laptop: Port to new backlight interface selection API
intel-oaktrail: Port to new backlight interface selection API
ideapad-laptop: Port to new backlight interface selection API
fujitsu-laptop: Port to new backlight interface selection API
eeepc-laptop: Port to new backlight interface selection API
dell-wmi: Port to new backlight interface selection API
...
Pull livepatching fixes from Jiri Kosina:
- symbol lookup locking fix, from Miroslav Benes
- error handling improvements in case of failure of the module coming
notifier, from Minfei Huang
- we were too pessimistic when kASLR has been enabled on x86 and were
dropping address hints on the floor unnecessarily in such case. Fix
from Jiri Kosina
- a few other small fixes and cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: add module locking around kallsyms calls
livepatch: annotate klp_init() with __init
livepatch: introduce patch/func-walking helpers
livepatch: make kobject in klp_object statically allocated
livepatch: Prevent patch inconsistencies if the coming module notifier fails
livepatch: match return value to function signature
x86: kaslr: fix build due to missing ALIGN definition
livepatch: x86: make kASLR logic more accurate
x86: introduce kaslr_offset()
Pull HID updates from Jiri Kosina:
- spurious power/wakeup sysfs files removal for I2C-HID devices, from
Andrew Duggan
- Logitech M560 support, from Goffredo Baroncelli
- a lot of housekeeping cleanups to hid-lg4ff driver, from Michal Maly
- improved support for Plantronics devices, from Terry Junge
- Sony Motion Controller and Navigation Controller support and
subsequent cleanups of hid-sony driver, from Frank Praznik and Simon
Wood
- HW support improvements to the Wacom driver, from Jason Gerecke and
Ping Cheng
- assorted small cleanups and device ID additions all over the place
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (69 commits)
HID: cypress: use swap() in cp_report_fixup()
HID: microsoft: Add Surface Power Cover
HID: hid-sony: Fix report descriptor for Navigation Controller
HID: hid-sony: Navigation controller only has 1 LED and no rumble
HID: hid-sony: Add BT support for Navigation Controller
HID: wacom: Introduce new 'touch_input' device
HID: wacom: Split apart 'wacom_setup_pentouch_input_capabilites'
HID: wacom: Introduce a new WACOM_DEVICETYPE_PAD device_type
HID: wacom: Treat features->device_type values as flags
HID: wacom: Simplify 'wacom_update_name'
HID: rmi: Disable populating F30 when the touchpad has physical buttons
HID: plantronics: Update to map volume up/down controls
HID: sony: PS Move fix report descriptor
HID: sony: PS3 Move enable LEDs and Rumble via BT
HID: sony: Add support PS3 Move Battery via BT
HID: sony: Add quirk for MOTION_CONTROLLER_BT
HID: sony: Support PS3 Move Controller when connected via Bluetooth
HID: i2c-hid: Do not set the ACPI companion field in the HID device
usb, HID: Remove Vernier devices from lsusb and hid_ignore_list
HID: hidpp: Add driver for mouse logitech M560
...
Pull PCMCIA update from Dominik Brodowski:
"A few PCMCIA fixes and cleanups are available in the PCMCIA tree.
Most of them are trivial and self-explanatory. Of particular note are
the last three patches which add an important hardware quirk for
Toshiba ToPIC95 sockets (or BIOS breakage on systems with these
sockets), fix resource leaks in yenta_socket enable/disable call
paths, and fix a regression caused by patch 1c6c9b1d9d since v4.0.
Alan stated he is OK with me pushing this patch upstream. Once it
works out well in your tree, I will push it to stable for 4.0/4.1 as
well"
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia:
pcmcia: do not break rsrc_nonstatic when handling anonymous cards
pcmcia: Fix resource leaks in yenta_probe() and _close()
Disable write buffering on Toshiba ToPIC95
pcmcia: Convert dev_printk to dev_<level>
pcmcia/vrc4171: Remove typedefs for enums and struct
pcmcia: Remove typedef in structs and emum
pcmcia: Remove typedef tuple_flags
drivers: pcmcia: electra_cf.c fix checkpatch error and warnings
drivers: pcmcia: ds.c fix checkpatch errors
PCMCIA: Remove commented references to dead class_device_create_file()
drivers/pcmcia/electra_cf.c: add missing iounmap and kfree
pcmcia: replace open-coded ARRAY_SIZE with macro
- New driver for Microchip TC74
- Support for ncpXXwf104 added to ntc_thermistor driver
- Minor cleanup
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Merge tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- new driver for Microchip TC74
- support for ncpXXwf104 added to ntc_thermistor driver
- minor cleanup
* tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: add driver for Microchip TC74
hwmon: (ntc_thermistor) Improve precision of resistance calculation
hwmon: (ntc_thermistor) fix iio raw to microvolts conversion
hwmon: (atxp1) Drop auto-detection
hwmon: (atxp1) Drop FSF mailing address
hwmon: Allow compile test of GPIO consumers if !GPIOLIB
hwmon: (sht15) Constify platform_device_id
hwmon: (max197) Constify platform_device_id
hwmon: (ntc_thermistor) Add support for ncpXXwf104
Chris Metcalf
Akinobu Mita
Joseph Qi
Fabian Frederick
Xue jiufei
alex chen
WeiWei Wang
Daeseok Youn
Andrew Morton
Joe Perches
Pekka Enberg
Nikolay Borisov
Linus Torvalds