The commit 34a1cd60d1, "x86: vmx: move some vmx setting from
vmx_init() to hardware_setup()", tried to refactor some codes
specific to vmx hardware setting into hardware_setup(), but some
msr writing should depend on our previous setting condition like
enable_apicv, enable_ept and so on.
Reported-by: Jamie Heilman <jamie@audible.transient.net>
Tested-by: Jamie Heilman <jamie@audible.transient.net>
Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In one of the places (ll_md_blocking_ast()) we had open-coded
!is_root_inode(inode) and replaced it with is_root_inode(inode).
See the last chunk of f76c23:
- inode != inode->i_sb->s_root->d_inode)
+ is_root_inode(inode))
should've been
+ !is_root_inode(inode))
obviously...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull parisc build fix from Helge Deller:
"This unbreaks the kernel compilation on parisc with gcc-4.9"
* 'parisc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: fix out-of-register compiler error in ldcw inline assembler function
The __ldcw macro has a problem when its argument needs to be reloaded from
memory. The output memory operand and the input register operand both need to
be reloaded using a register in class R1_REGS when generating 64-bit code.
This fails because there's only a single register in the class. Instead, use a
memory clobber. This also makes the __ldcw macro a compiler memory barrier.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Helge Deller <deller@gmx.de>
The total stream number of Skylake's input and output stream
exceeds 15, which will cause some streams do not work because
of the overflow on SDxCTL.STRM field if using the legacy
stream tag allocation method.
This patch uses the new stream tag allocation method by add
the flag AZX_DCAPS_SEPARATE_STREAM_TAG for Skylake platform.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Implemented separate stream_tag assignment for input and output streams.
According to hda specification stream tag must be unique throughout the
input streams group, however an output stream might use a stream tag
which is already in use by an input stream. This change is necessary
to support HW which provides a total of more than 15 stream DMA engines
which with legacy implementation causes an overflow on SDxCTL.STRM
field (and the whole SDxCTL register) and as a result usage of
Reserved value 0 in the SDxCTL.STRM field which confuses HDA controller.
Signed-off-by: Rafal Redzimski <rafal.f.redzimski@intel.com>
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull drm fixes from Dave Airlie:
"Xmas fixes pull:
core:
one atomic fix, revert the WARN_ON dumb buffers patch.
agp:
fixup Dave J.
nouveau:
fix 3.18 regression for old userspace
tegra fixes:
vblank and iommu fixes
amdkfd:
fix bugs shown by testing with userspace, init apertures once
msm:
hdmi fixes and cleanup
i915:
misc fixes
There is also a link ordering fix that I've asked to be cc'ed to you,
putting iommu before gpu, it fixes an issue with amdkfd when things
are all in the kernel, but I didn't like sending it via my tree
without discussion.
I'll probably be a bit on/off for a few weeks with pulls now, due to
holidays and LCA, so don't be surprised if stuff gets a bit backed up,
and things end up a bit large due to lag"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits)
Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"
agp: Fix up email address & attributions in AGP MODULE_AUTHOR tags
nouveau: bring back legacy mmap handler
drm/msm/hdmi: rework HDMI IRQ handler
drm/msm/hdmi: enable regulators before clocks to avoid warnings
drm/msm/mdp5: update irqs on crtc<->encoder link change
drm/msm: block incoming update on pending updates
drm/atomic: fix potential null ptr on plane enable
drm/msm: Deletion of unnecessary checks before the function call "release_firmware"
drm/msm: Deletion of unnecessary checks before two function calls
drm/tegra: dc: Select root window for event dispatch
drm/tegra: gem: Use the proper size for GEM objects
drm/tegra: gem: Flush buffer objects upon allocation
drm/tegra: dc: Fix a potential race on page-flip completion
drm/tegra: dc: Consistently use the same pipe
drm/irq: Add drm_crtc_vblank_count()
drm/irq: Add drm_crtc_handle_vblank()
drm/irq: Add drm_crtc_send_vblank_event()
drm/i915: Disable PSMI sleep messages on all rings around context switches
drm/i915: Force the CS stall for invalidate flushes
...
One that lockdep turned up, I didn't go far enough with cleanup
of attributes for IPMI. This has been there a long time; my
previous fix of this didn't fix all the attributes.
One fix for some arches that need an explicit linux/ctype.h for
isspace().
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Merge tag 'for-linus-2' of git://git.code.sf.net/p/openipmi/linux-ipmi
Pull ipmi driver bugfixes from Corey Minyard:
"Fix two bugs:
One that lockdep turned up, I didn't go far enough with cleanup of
attributes for IPMI. This has been there a long time; my previous fix
of this didn't fix all the attributes.
One fix for some arches that need an explicit linux/ctype.h for
isspace()"
* tag 'for-linus-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Fix compile issue with isspace()
ipmi: Finish cleanup of BMC attributes
This reverts commit 355a701838.
This had some bad side effects under normal operation, and should
have been dropped earlier.
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Display MEC fw version in topology. Without this, the HSA userspace
stack is broken.
- Init apertures information only once per process
* tag 'amdkfd-fixes-2014-12-23' of git://people.freedesktop.org/~gabbayo/linux:
amdkfd: init aperture once per process
amdkfd: Display MEC fw version in topology node
drm/radeon: Add implementation of get_fw_version
drm/amd: Add get_fw_version to kfd-->kgd interface
Pull audit fixes from Paul Moore:
"Four patches to fix various problems with the audit subsystem, all are
fairly small and straightforward.
One patch fixes a problem where we weren't using the correct gfp
allocation flags (GFP_KERNEL regardless of context, oops), one patch
fixes a problem with old userspace tools (this was broken for a
while), one patch fixes a problem where we weren't recording pathnames
correctly, and one fixes a problem with PID based filters.
In general I don't think there is anything controversial with this
patchset, and it fixes some rather unfortunate bugs; the allocation
flag one can be particularly scary looking for users"
* 'upstream' of git://git.infradead.org/users/pcmoore/audit:
audit: restore AUDIT_LOGINUID unset ABI
audit: correctly record file names with different path name types
audit: use supplied gfp_mask from audit_buffer in kauditd_send_multicast_skb
audit: don't attempt to lookup PIDs when changing PID filtering audit rules
A regression was caused by commit 780a7654cee8:
audit: Make testing for a valid loginuid explicit.
(which in turn attempted to fix a regression caused by e1760bd)
When audit_krule_to_data() fills in the rules to get a listing, there was a
missing clause to convert back from AUDIT_LOGINUID_SET to AUDIT_LOGINUID.
This broke userspace by not returning the same information that was sent and
expected.
The rule:
auditctl -a exit,never -F auid=-1
gives:
auditctl -l
LIST_RULES: exit,never f24=0 syscall=all
when it should give:
LIST_RULES: exit,never auid=-1 (0xffffffff) syscall=all
Tag it so that it is reported the same way it was set. Create a new
private flags audit_krule field (pflags) to store it that won't interact with
the public one from the API.
Cc: stable@vger.kernel.org # v3.10-rc1+
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
This patch adds pgd_page definition in order to keep supporting
HAVE_GENERIC_RCU_GUP configuration. In addition, it changes pud_page
expression to align with pmd_page for readability.
An introduction of pgd_page resolves the following build breakage
under 4KB + 4Level memory management combo.
mm/gup.c: In function 'gup_huge_pgd':
mm/gup.c:889:2: error: implicit declaration of function 'pgd_page' [-Werror=implicit-function-declaration]
head = pgd_page(orig);
^
mm/gup.c:889:7: warning: assignment makes pointer from integer without a cast
head = pgd_page(orig);
Cc: Will Deacon <will.deacon@arm.com>
Cc: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Jungseok Lee <jungseoklee85@gmail.com>
[catalin.marinas@arm.com: remove duplicate pmd_page definition]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The usual defconfig tweaks, this time:
- FHANDLE and AUTOFS4_FS to keep systemd happy
- PID_NS, QUOTA and KEYS to keep LTP happy
- Disable DEBUG_PREEMPT, as this *really* hurts performance
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
On arm64 the TTBR0_EL1 register is set to either the reserved TTBR0
page tables on boot or to the active_mm mappings belonging to user space
processes, it must never be set to swapper_pg_dir page tables mappings.
When a CPU is booted its active_mm is set to init_mm even though its
TTBR0_EL1 points at the reserved TTBR0 page mappings. This implies
that when __cpu_suspend is triggered the active_mm can point at
init_mm even if the current TTBR0_EL1 register contains the reserved
TTBR0_EL1 mappings.
Therefore, the mm save and restore executed in __cpu_suspend might
turn out to be erroneous in that, if the current->active_mm corresponds
to init_mm, on resume from low power it ends up restoring in the
TTBR0_EL1 the init_mm mappings that are global and can cause speculation
of TLB entries which end up being propagated to user space.
This patch fixes the issue by checking the active_mm pointer before
restoring the TTBR0 mappings. If the current active_mm == &init_mm,
the code sets the TTBR0_EL1 to the reserved TTBR0 mapping instead of
switching back to the active_mm, which is the expected behaviour
corresponding to the TTBR0_EL1 settings when __cpu_suspend was entered.
Fixes: 95322526ef ("arm64: kernel: cpu_{suspend/resume} implementation")
Cc: <stable@vger.kernel.org> # 3.14+: 18ab7db
Cc: <stable@vger.kernel.org> # 3.14+: 714f599
Cc: <stable@vger.kernel.org> # 3.14+: c3684fb
Cc: <stable@vger.kernel.org> # 3.14+
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
- Remove soon-to-be-dead @redhat address.
- Jeff Hartmann wrote the bulk of the original backend code, and should
at least get a mention in the MODULE_AUTHOR for backend.o
- Various people at Intel have done a lot more work than myself on the
intel-* drivers, so again, mention that.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Fix inability to discard used space when the thin-pool target is in
out-of-data-space mode and also transition the thin-pool back to write
mode once free space is made available.
- Fix DM core bio-based end_io bug that prevented proper post-processing
of the error code returned from the block layer.
- Fix crash in DM thin-pool due to thin device being added to the pool's
active_thins list before properly initializing the thin device's
refcount.
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Merge tag 'dm-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Thre stable fixes and one fix for a regression introduced during 3.19
merge:
- Fix inability to discard used space when the thin-pool target is in
out-of-data-space mode and also transition the thin-pool back to
write mode once free space is made available.
- Fix DM core bio-based end_io bug that prevented proper
post-processing of the error code returned from the block layer.
- Fix crash in DM thin-pool due to thin device being added to the
pool's active_thins list before properly initializing the thin
device's refcount"
* tag 'dm-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix missed error code if .end_io isn't implemented by target_type
dm thin: fix crash by initializing thin device's refcount and completion earlier
dm thin: fix missing out-of-data-space to write mode transition if blocks are released
dm thin: fix inability to discard blocks when in out-of-data-space mode
This reverts commit c8475d144a.
There are several[1][2] of bug reports which points to this commit as potential
cause[3].
Let's revert it until we figure out what's going on.
[1] https://lkml.org/lkml/2014/11/14/342
[2] https://lkml.org/lkml/2014/12/22/213
[3] https://lkml.org/lkml/2014/12/9/741
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a set of fixes for two regressions and one bug in the IOMMU
mapping code. It turns out that all of these issues turn up primarily
on Tegra30 hardware. The IOMMU mapping bug only manifests on buffers
that aren't multiples of the page size. I happened to be testing HDMI
with 1080p while writing the code and framebuffers for that happen to
fit exactly within 2025 pages of 4 KiB each.
One of the regressions is caused by the IOMMU code allocating pages from
shmem which can have associated cache lines. If the pages aren't flushed
then these cache lines may be flushed later on and cause framebuffer
corruption. I'm not sure why I didn't see this before. Perhaps the board
that I was using had enough RAM so that the pages shmem would hand out
had a better chance of being unused. Or maybe I didn't look too closely.
The fix for this is to fake up an SG table so that it can be passed to
the DMA API. Ideally this would use drm_clflush_*(), but implementing
that for ARM causes DRM to fail to build as a module since some of the
low-level cache maintenance functions aren't exported. Hopefully we can
get a suitable API exported on ARM for the next release.
The second regression is caused by a mismatch between the hardware pipe
number and the CRTC's DRM index. These were used inconsistently, which
could cause one code location to call drm_vblank_get() with a different
pipe than the corresponding drm_vblank_put(), thereby causing the
reference count to become unbalanced. Alexandre also reported a possible
race condition related to this, which this series also fixes.
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Merge tag 'drm/tegra/for-3.19-rc1-fixes' of git://people.freedesktop.org/~tagr/linux into drm-fixes
drm/tegra: Fixes for v3.19-rc1
This is a set of fixes for two regressions and one bug in the IOMMU
mapping code. It turns out that all of these issues turn up primarily
on Tegra30 hardware. The IOMMU mapping bug only manifests on buffers
that aren't multiples of the page size. I happened to be testing HDMI
with 1080p while writing the code and framebuffers for that happen to
fit exactly within 2025 pages of 4 KiB each.
One of the regressions is caused by the IOMMU code allocating pages from
shmem which can have associated cache lines. If the pages aren't flushed
then these cache lines may be flushed later on and cause framebuffer
corruption. I'm not sure why I didn't see this before. Perhaps the board
that I was using had enough RAM so that the pages shmem would hand out
had a better chance of being unused. Or maybe I didn't look too closely.
The fix for this is to fake up an SG table so that it can be passed to
the DMA API. Ideally this would use drm_clflush_*(), but implementing
that for ARM causes DRM to fail to build as a module since some of the
low-level cache maintenance functions aren't exported. Hopefully we can
get a suitable API exported on ARM for the next release.
The second regression is caused by a mismatch between the hardware pipe
number and the CRTC's DRM index. These were used inconsistently, which
could cause one code location to call drm_vblank_get() with a different
pipe than the corresponding drm_vblank_put(), thereby causing the
reference count to become unbalanced. Alexandre also reported a possible
race condition related to this, which this series also fixes.
* tag 'drm/tegra/for-3.19-rc1-fixes' of git://people.freedesktop.org/~tagr/linux:
drm/tegra: dc: Select root window for event dispatch
drm/tegra: gem: Use the proper size for GEM objects
drm/tegra: gem: Flush buffer objects upon allocation
drm/tegra: dc: Fix a potential race on page-flip completion
drm/tegra: dc: Consistently use the same pipe
drm/irq: Add drm_crtc_vblank_count()
drm/irq: Add drm_crtc_handle_vblank()
drm/irq: Add drm_crtc_send_vblank_event()
misc i915 fixes.
* tag 'drm-intel-next-fixes-2014-12-17' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Disable PSMI sleep messages on all rings around context switches
drm/i915: Force the CS stall for invalidate flushes
drm/i915: Invalidate media caches on gen7
drm/i915: sanitize RPS resetting during GPU reset
drm/i915: move RPS PM_IER enabling to gen6_enable_rps_interrupts
drm/i915: vlv: fix IRQ masking when uninstalling interrupts
Yeah a pull for one patch is a bit overkill but I started to assemble the
various patches for 3.20 in a branch for atomic props/ioctl and didn't
realize that this bugfix here at the beginnning of the branch should be in
3.19 (because msm is using the helpers arleady). So if you'd merge we'd
have it twice or or I need to shuffle branches again. Can do if you want.
* tag 'topic/atomic-fixes-2014-12-17' of git://anongit.freedesktop.org/drm-intel:
drm/atomic: fix potential null ptr on plane enable
A few msm fixes for 3.19:
* hdmi regulators fix
* hdmi fix for spurious HPD interrupts
* fix for sync atomic update after async update (which could show
up with a setcrtc following a pageflip)
* couple little Coccinelle cleanups
* 'msm-fixes-3.19' of git://people.freedesktop.org/~robclark/linux:
drm/msm/hdmi: rework HDMI IRQ handler
drm/msm/hdmi: enable regulators before clocks to avoid warnings
drm/msm/mdp5: update irqs on crtc<->encoder link change
drm/msm: block incoming update on pending updates
drm/msm: Deletion of unnecessary checks before the function call "release_firmware"
drm/msm: Deletion of unnecessary checks before two function calls
nouveau userspace back at 1.0.1 used to call the X server
DRIOpenDRMMaster interface even for DRI2 (doh!), this attempts
to map the sarea and fails if it can't.
Since 884c6dabb0 from Daniel,
this fails, but only ancient drivers would see it.
Revert the nouveau bits of that fix.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # 3.18
Signed-off-by: Dave Airlie <airlied@redhat.com>
There is a problem with the audit system when multiple audit records
are created for the same path, each with a different path name type.
The root cause of the problem is in __audit_inode() when an exact
match (both the path name and path name type) is not found for a
path name record; the existing code creates a new path name record,
but it never sets the path name in this record, leaving it NULL.
This patch corrects this problem by assigning the path name to these
newly created records.
There are many ways to reproduce this problem, but one of the
easiest is the following (assuming auditd is running):
# mkdir /root/tmp/test
# touch /root/tmp/test/567
# auditctl -a always,exit -F dir=/root/tmp/test
# touch /root/tmp/test/567
Afterwards, or while the commands above are running, check the audit
log and pay special attention to the PATH records. A faulty kernel
will display something like the following for the file creation:
type=SYSCALL msg=audit(1416957442.025:93): arch=c000003e syscall=2
success=yes exit=3 ... comm="touch" exe="/usr/bin/touch"
type=CWD msg=audit(1416957442.025:93): cwd="/root/tmp"
type=PATH msg=audit(1416957442.025:93): item=0 name="test/"
inode=401409 ... nametype=PARENT
type=PATH msg=audit(1416957442.025:93): item=1 name=(null)
inode=393804 ... nametype=NORMAL
type=PATH msg=audit(1416957442.025:93): item=2 name=(null)
inode=393804 ... nametype=NORMAL
While a patched kernel will show the following:
type=SYSCALL msg=audit(1416955786.566:89): arch=c000003e syscall=2
success=yes exit=3 ... comm="touch" exe="/usr/bin/touch"
type=CWD msg=audit(1416955786.566:89): cwd="/root/tmp"
type=PATH msg=audit(1416955786.566:89): item=0 name="test/"
inode=401409 ... nametype=PARENT
type=PATH msg=audit(1416955786.566:89): item=1 name="test/567"
inode=393804 ... nametype=NORMAL
This issue was brought up by a number of people, but special credit
should go to hujianyang@huawei.com for reporting the problem along
with an explanation of the problem and a patch. While the original
patch did have some problems (see the archive link below), it did
demonstrate the problem and helped kickstart the fix presented here.
* https://lkml.org/lkml/2014/9/5/66
Reported-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Commit a3a60f81ee (dma-mapping: replace set_arch_dma_coherent_ops with
arch_setup_dma_ops) changes the of_dma_configure() arch dma_ops callback
to arch_setup_dma_ops but only the arch/arm code is updated. Subsequent
commit 97890ba928 (dma-mapping: detect and configure IOMMU in
of_dma_configure) changes the arch_setup_dma_ops() prototype further to
handle iommu. The patch makes the corresponding arm64 changes.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will.deacon@arm.com>
The previous cleanup of BMC attributes left a few holes, and if
you run with lockdep debugging with a BMC with the proper attributes,
you could get a warning.
This patch removes all the unused attributes from the BMC structure,
since they are all declared in the .data section now. It makes
the attributes all static. It fixes the referencing of the
attributes in a couple of cases that dynamically added the files
depending on BMC information.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Huang Ying <ying.huang@intel.com>
Tested-by: Alexei Starovoitov <ast@plumgrid.com>
As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
ACCESS_ONCE might fail with specific compilers for non-scalar accesses.
Here is a set of patches to tackle that problem.
The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data structure
is larger than the machine word size memcpy is used and a warning is emitted.
The next patches fix up several in-tree users of ACCESS_ONCE on non-scalar
types.
This merge does not yet contain a patch that forces ACCESS_ONCE to work only
on scalar types. This is targetted for the next merge window as Linux next
already contains new offenders regarding ACCESS_ONCE vs. non-scalar types.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux
Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
"kernel: Provide READ_ONCE and ASSIGN_ONCE
As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
ACCESS_ONCE might fail with specific compilers for non-scalar
accesses.
Here is a set of patches to tackle that problem.
The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data
structure is larger than the machine word size memcpy is used and a
warning is emitted. The next patches fix up several in-tree users of
ACCESS_ONCE on non-scalar types.
This does not yet contain a patch that forces ACCESS_ONCE to work only
on scalar types. This is targetted for the next merge window as Linux
next already contains new offenders regarding ACCESS_ONCE vs.
non-scalar types"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
s390/kvm: REPLACE barrier fixup with READ_ONCE
arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
mips/gup: Replace ACCESS_ONCE with READ_ONCE
x86/gup: Replace ACCESS_ONCE with READ_ONCE
x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
mm: replace ACCESS_ONCE with READ_ONCE or barriers
kernel: Provide READ_ONCE and ASSIGN_ONCE
much later than usual due to several last minute bugs that had to be
addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future which
will better parition clock providers from clock consumers.
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Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux
Pull clk framework updates from Mike Turquette:
"This is much later than usual due to several last minute bugs that had
to be addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future
which will better parition clock providers from clock consumers"
* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
ARM: OMAP3: clock: fix boot breakage in legacy mode
ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
clk: Really fix deadlock with mmap_sem
clk: mmp: fix sparse non static symbol warning
clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
clk: change clk_debugfs_add_file to take a struct clk_hw
clk: Don't expose __clk_get_accuracy
clk: Don't try to use a struct clk* after it could have been freed
clk: Remove unused function __clk_get_prepare_count
clk: samsung: Fix double add of syscore ops after driver rebind
clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
clk: samsung: remove unnecessary inclusion of header files from clk.h
clk: samsung: remove unnecessary CONFIG_OF from clk.c
clk: samsung: Spelling s/bwtween/between/
clk: rockchip: Add support for the mmc clock phases using the framework
clk: rockchip: add bindings for the mmc clocks
clk: rockchip: rk3288 export i2s0_clkout for use in DT
clk: rockchip: use clock ID for DMC (memory controller) on rk3288
...
Pull more i2c updates from Wolfram Sang:
"Included are two bugfixes needing some bigger refactoring (sh_mobile:
deferred probe with DMA, mv64xxx: fix offload support) and one
deprecated driver removal I thought would go in via ppc but I
misunderstood. It has a proper ack from BenH"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sh_mobile: fix uninitialized var when debug is enabled
macintosh: therm_pm72: delete deprecated driver
i2c: sh_mobile: I2C_SH_MOBILE should depend on HAS_DMA
i2c: sh_mobile: rework deferred probing
i2c: sh_mobile: refactor DMA setup
i2c: mv64xxx: rework offload support to fix several problems
i2c: mv64xxx: use BIT() macro for register value definitions
This is a much shorter set of patches that were on the go but didn't make it
in to the early pull request for the merge window. It's really a set of bug
fixes plus some final cleanup work on the new tag queue API.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI update from James Bottomley:
"This is a much shorter set of patches that were on the go but didn't
make it in to the early pull request for the merge window. It's
really a set of bug fixes plus some final cleanup work on the new tag
queue API"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
storvsc: ring buffer failures may result in I/O freeze
ipr: set scsi_level correctly for disk arrays
ipr: add support for async scanning to speed up boot
scsi_debug: fix missing "break;" in SDEBUG_UA_CAPACITY_CHANGED case
scsi_debug: take sdebug_host_list_lock when changing capacity
scsi_debug: improve driver description in Kconfig
scsi_debug: fix compare and write errors
qla2xxx: fix race in handling rport deletion during recovery causes panic
scsi: blacklist RSOC for Microsoft iSCSI target devices
scsi: fix random memory corruption with scsi-mq + T10 PI
Revert "[SCSI] mpt3sas: Remove phys on topology change"
Revert "[SCSI] mpt2sas: Remove phys on topology change."
esas2r: Correct typos of "validate" in a comment
fc: FCP_PTA_SIMPLE is 0
ibmvfc: remove unused tag variable
scsi: remove MSG_*_TAG defines
scsi: remove scsi_set_tag_type
scsi: remove scsi_get_tag_type
scsi: never drop to untagged mode during queue ramp down
scsi: remove ->change_queue_type method
This removes the last few uses of CONFIG_PM_RUNTIME introduced
recently and makes that config option finally go away.
CONFIG_PM will be available directly from the menu now and
also it will be selected automatically if CONFIG_SUSPEND or
CONFIG_HIBERNATION is set.
/
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Merge tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull CONFIG_PM_RUNTIME elimination from Rafael Wysocki:
"This removes the last few uses of CONFIG_PM_RUNTIME introduced
recently and makes that config option finally go away.
CONFIG_PM will be available directly from the menu now and also it
will be selected automatically if CONFIG_SUSPEND or CONFIG_HIBERNATION
is set"
* tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: Eliminate CONFIG_PM_RUNTIME
tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PM
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
Pull misc kbuild changes from Michal Marek:
"There are only a few things in the misc branch:
- Fix for bugon.cocci semantic patch
- Kdevelop4 files are .gitignored
- Put make binrpm-pkg on diet"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
scripts/package: binrpm-pkg do not create source and devel package
.gitignore: Add Kdevelop4 project files
bugon.cocci: fix Options at the macro
Pull kbuild updates from Michal Marek:
"Here are the kbuild changes for v3.19-rc1:
- Cleanups and deduplication in the main Makefile and
scripts/Makefile.*
- Sort the output of *config targets in make help
- Old <linux/version.h> is always removed to avoid a surprise during
bisecting
- Warning fix in kconfig"
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: remove redundant -rR flag of hdr-inst
kbuild: Fix make help-<board series> on powerpc
kbuild: Automatically remove stale <linux/version.h> file
kconfig: Fix warning "‘jump’ may be used uninitialized"
Makefile: sort list of defconfig targets in make help output
kbuild: Remove duplicate $(cmd) definition in Makefile.clean
kbuild: collect shorthands into scripts/Kbuild.include
Pull vfs pile #3 from Al Viro:
"Assorted fixes and patches from the last cycle"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
[regression] chunk lost from bd9b51
vfs: make mounts and mountstats honor root dir like mountinfo does
vfs: cleanup show_mountinfo
init: fix read-write root mount
unfuck binfmt_misc.c (broken by commit e6084d4)
vm_area_operations: kill ->migrate()
new helper: iter_is_iovec()
move_extent_per_page(): get rid of unused w_flags
lustre: get rid of playing with ->fs
btrfs: filp_open() returns ERR_PTR() on failure, not NULL...
- The filename decryption routines were, at times, writing a zero byte one
character past the end of the filename buffer
- The encrypted view feature attempted, and failed, to roll its own form of
enforcing a read-only mount instead of letting the VFS enforce it
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Merge tag 'ecryptfs-3.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull eCryptfs fixes from Tyler Hicks:
"Fixes for filename decryption and encrypted view plus a cleanup
- The filename decryption routines were, at times, writing a zero
byte one character past the end of the filename buffer
- The encrypted view feature attempted, and failed, to roll its own
form of enforcing a read-only mount instead of letting the VFS
enforce it"
* tag 'ecryptfs-3.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: Remove buggy and unnecessary write in file name decode routine
eCryptfs: Remove unnecessary casts when parsing packet lengths
eCryptfs: Force RO mount when encrypted view is enabled
Pull more btrfs updates from Chris Mason:
"This is part two of our merge window patches.
These are all from Filipe, and fix some really hard to find races that
can cause corruptions. Most of them involved block group removal
(balance) or discard"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: remove non-sense btrfs_error_discard_extent() function
Btrfs: fix fs corruption on transaction abort if device supports discard
Btrfs: always clear a block group node when removing it from the tree
Btrfs: ensure deletion from pinned_chunks list is protected
Here are a few fixes that have landed after the previous pull
request. All are driver specific fixes including:
- error/int value fixes in OXFW,
- Intel Skylake HD-audio HDMI codec support,
- Additional HD-audio Realtek codecs and AD1986A codec fixes/quirks,
- a few more DSD support and a quirk for Arcam rPAC in usb-audio,
- a typo fix for Scarlett 6i6,
- fixes for new ASIHPI firmware,
- ASoC Exynos7 cleanups,
- Intel ACPI support, and
- a fix for PCM512 register cache sync.
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Merge tag 'sound-fix-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a few fixes that have landed after the previous pull request.
All are driver specific fixes including:
- error/int value fixes in OXFW,
- Intel Skylake HD-audio HDMI codec support,
- Additional HD-audio Realtek codecs and AD1986A codec fixes/quirks,
- a few more DSD support and a quirk for Arcam rPAC in usb-audio,
- a typo fix for Scarlett 6i6,
- fixes for new ASIHPI firmware,
- ASoC Exynos7 cleanups,
- Intel ACPI support, and
- a fix for PCM512 register cache sync"
* tag 'sound-fix-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ALSA: usb-audio: extend KEF X300A FU 10 tweak to Arcam rPAC
ALSA: hda/realtek - New codec support for ALC298
ALSA: asihpi: update to HPI version 4.14
ALSA: asihpi: increase tuner pad cache size
ALSA: asihpi: relax firmware version check
ALSA: usb-audio: Fix Scarlett 6i6 initialization typo
ALSA: hda - Add quirk for Packard Bell EasyNote MX65
ALSA: usb-audio: add native DSD support for Matrix Audio DACs
ALSA: hda/realtek - New codec support for ALC256
ALSA: hda/realtek - Add new Dell desktop for ALC3234 headset mode
ASoC: Intel: fix possible acpi enumeration panic
ALSA: hda/hdmi - apply Haswell fix-ups to Skylake display codec
ASoC: Intel: fix return value check in sst_acpi_probe()
ALSA: hda - Make add_stereo_mix_input flag tristate
ALSA: hda - Create capture source ctls when stereo mix input is added
ALSA: hda - Fix typos in snd_hda_get_int_hint() kerneldoc comments
ALSA: hda - add codec ID for Skylake display audio codec
ALSA: oxfw: some signedness bugs
ALSA: oxfw: fix detect_loud_models() return value
ASoC: rt5677: add REGMAP_I2C and REGMAP_IRQ dependency
...
Pull SCSI target fixes from Nicholas Bellinger:
"The highlights this merge window include:
- Allow target fabric drivers to function as built-in. (Roland)
- Fix tcm_loop multi-TPG endpoint nexus bug. (Hannes)
- Move per device config_item_type into se_subsystem_api, allowing
configfs attributes to be defined at module_init time. (Jerome +
nab)
- Convert existing IBLOCK/FILEIO/RAMDISK/PSCSI/TCMU drivers to use
external configfs attributes. (nab)
- A number of iser-target fixes related to active session + network
portal shutdown stability during extended stress testing. (Sagi +
Slava)
- Dynamic allocation of T10-PI contexts for iser-target, fixing a
potentially bogus iscsi_np->tpg_np pointer reference in >= v3.14
code. (Sagi)
- iser-target performance + scalability improvements. (Sagi)
- Fixes for SPC-4 Persistent Reservation AllRegistrants spec
compliance. (Ilias + James + nab)
- Avoid potential short kern_sendmsg() in iscsi-target for now until
Al's conversion to use msghdr iteration is merged post -rc1.
(Viro)
Also, Sagi has requested a number of iser-target patches (9) that
address stability issues he's encountered during extended stress
testing be considered for v3.10.y + v3.14.y code. Given the amount of
LOC involved, it will certainly require extra backporting effort.
Apologies in advance to Greg-KH & Co on this. Sagi and I will be
working post-merge to ensure they each get applied correctly"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (53 commits)
target: Allow AllRegistrants to re-RESERVE existing reservation
uapi/linux/target_core_user.h: fix headers_install.sh badness
iscsi-target: Fail connection on short sendmsg writes
iscsi-target: nullify session in failed login sequence
target: Avoid dropping AllRegistrants reservation during unregister
target: Fix R_HOLDER bit usage for AllRegistrants
iscsi-target: Drop left-over bogus iscsi_np->tpg_np
iser-target: Fix wc->wr_id cast warning
iser-target: Remove code duplication
iser-target: Adjust log levels and prettify some prints
iser-target: Use debug_level parameter to control logging level
iser-target: Fix logout sequence
iser-target: Don't wait for session commands from completion context
iser-target: Reduce CQ lock contention by batch polling
iser-target: Introduce isert_poll_budget
iser-target: Remove an atomic operation from the IO path
iser-target: Remove redundant call to isert_conn_terminate
iser-target: Use single CQ for TX and RX
iser-target: Centralize completion elements to a context
iser-target: Cast wr_id with uintptr_t instead of unsinged long
...
Pull arch/hexagon updates from Richard Kuo:
"Build cleanup and a few misc fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
Hexagon: fix signal delivery for debug traps
Hexagon: set ARCH_DMA_MINALIGN
Hexagon: fix alignment of init_task in RW_DATA_SECTION
hexagon: Fix build failures in linux-next
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Merge tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris
Pull arch/chris updates from Jesper Nilsson:
"Mostly cleanup and build fixes for CRISv32 allmodconfig
God Jul och Gott Nytt år!"
* tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARD
CRISv32: ETRAXFS: Fix recursive spinlock
CRISv32: Select MTDRAM for axisflashmap
CRISv32: Implement early console
CRIS: Use KALLSYMs if available in call stack dump
CRISv32: Fix declaration mismatch
CRISv32: Rewrite of synchronous serial port driver
CRIS: Update init memory handling
CRISv32: Better handling of watchdog bite
CRIS: Export missing function symbols
CRIS: Export ioremap_nocache
CRIS: Fix headers_install
CRISv32: Add missing include for mm.h
CRISv32: Drop obsolete file for SPI driver
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Merge tag 'please-pull-misc-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull ia64 __get_cpu_var removal from Tony Luck:
"__get_cpu_var removed from rest of tree, drop reference from comments
in arch/ia64"
* tag 'please-pull-misc-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Update comment that references __get_cpu_var
Eric Paris explains: Since kauditd_send_multicast_skb() gets called in
audit_log_end(), which can come from any context (aka even a sleeping context)
GFP_KERNEL can't be used. Since the audit_buffer knows what context it should
use, pass that down and use that.
See: https://lkml.org/lkml/2014/12/16/542
BUG: sleeping function called from invalid context at mm/slab.c:2849
in_atomic(): 1, irqs_disabled(): 0, pid: 885, name: sulogin
2 locks held by sulogin/885:
#0: (&sig->cred_guard_mutex){+.+.+.}, at: [<ffffffff91152e30>] prepare_bprm_creds+0x28/0x8b
#1: (tty_files_lock){+.+.+.}, at: [<ffffffff9123e787>] selinux_bprm_committing_creds+0x55/0x22b
CPU: 1 PID: 885 Comm: sulogin Not tainted 3.18.0-next-20141216 #30
Hardware name: Dell Inc. Latitude E6530/07Y85M, BIOS A15 06/20/2014
ffff880223744f10 ffff88022410f9b8 ffffffff916ba529 0000000000000375
ffff880223744f10 ffff88022410f9e8 ffffffff91063185 0000000000000006
0000000000000000 0000000000000000 0000000000000000 ffff88022410fa38
Call Trace:
[<ffffffff916ba529>] dump_stack+0x50/0xa8
[<ffffffff91063185>] ___might_sleep+0x1b6/0x1be
[<ffffffff910632a6>] __might_sleep+0x119/0x128
[<ffffffff91140720>] cache_alloc_debugcheck_before.isra.45+0x1d/0x1f
[<ffffffff91141d81>] kmem_cache_alloc+0x43/0x1c9
[<ffffffff914e148d>] __alloc_skb+0x42/0x1a3
[<ffffffff914e2b62>] skb_copy+0x3e/0xa3
[<ffffffff910c263e>] audit_log_end+0x83/0x100
[<ffffffff9123b8d3>] ? avc_audit_pre_callback+0x103/0x103
[<ffffffff91252a73>] common_lsm_audit+0x441/0x450
[<ffffffff9123c163>] slow_avc_audit+0x63/0x67
[<ffffffff9123c42c>] avc_has_perm+0xca/0xe3
[<ffffffff9123dc2d>] inode_has_perm+0x5a/0x65
[<ffffffff9123e7ca>] selinux_bprm_committing_creds+0x98/0x22b
[<ffffffff91239e64>] security_bprm_committing_creds+0xe/0x10
[<ffffffff911515e6>] install_exec_creds+0xe/0x79
[<ffffffff911974cf>] load_elf_binary+0xe36/0x10d7
[<ffffffff9115198e>] search_binary_handler+0x81/0x18c
[<ffffffff91153376>] do_execveat_common.isra.31+0x4e3/0x7b7
[<ffffffff91153669>] do_execve+0x1f/0x21
[<ffffffff91153967>] SyS_execve+0x25/0x29
[<ffffffff916c61a9>] stub_execve+0x69/0xa0
Cc: stable@vger.kernel.org #v3.16-rc1
Reported-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Tested-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Commit f1dc4867 ("audit: anchor all pid references in the initial pid
namespace") introduced a find_vpid() call when adding/removing audit
rules with PID/PPID filters; unfortunately this is problematic as
find_vpid() only works if there is a task with the associated PID
alive on the system. The following commands demonstrate a simple
reproducer.
# auditctl -D
# auditctl -l
# autrace /bin/true
# auditctl -l
This patch resolves the problem by simply using the PID provided by
the user without any additional validation, e.g. no calls to check to
see if the task/PID exists.
Cc: stable@vger.kernel.org # 3.15
Cc: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Move pinmux alloc/dealloc code into functions that don't take
the spinlock so we can use from code that has the spinlock already.
CRISv32 has no working SMP, so spinlocks becomes a NOP,
so deadlock was never seen.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>