Clarify descriptions of SMB2 and SMB3 support in Kconfig
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org>
The existing code uses the old MAX_NAME constant. This causes
XFS test generic/013 to fail. Fix it by replacing MAX_NAME with
PATH_MAX that SMB1 uses. Also remove an unused MAX_NAME constant
definition.
Cc: <stable@vger.kernel.org> # v3.7+
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
The existing code calls server->ops->close() that is not
right. This causes XFS test generic/310 to fail. Fix this
by using server->ops->closedir() function.
Cc: <stable@vger.kernel.org> # v3.7+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
CIFS servers process nlink counts differently for files and directories.
In cifs_rename() if we the request fails on the existing target, we
try to remove it through cifs_unlink() but this is not what we want
to do for directories. As the result the following sequence of commands
mkdir {1,2}; mv -T 1 2; rmdir {1,2}; mkdir {1,2}; echo foo > 2/bar
and XFS test generic/023 fail with -ENOENT error. That's why the second
mkdir reuses the existing inode (target inode of the mv -T command) with
S_DEAD flag.
Fix this by checking whether the target is directory or not and
calling cifs_rmdir() rather than cifs_unlink() for directories.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
There is no need to explicitly send SIGKILL to cifs_demultiplex_thread
as it is calling module_put_and_exit to exit cleanly.
socket sk_rcvtimeo is set to 7 HZ so the thread will wake up in 7 seconds and
clean itself.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Acked-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Currently cifs have all or nothing approach for directIO operations.
cache=strict mode does not allow directIO while cache=none mode performs
all the operations as directIO even when user does not specify O_DIRECT
flag. This patch enables strict cache mode to honour directIO semantics.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Steve French <smfrench@gmail.com>
In case of error, goto ssetup_exit can be hit and we could end up using
uninitialized value of resp_buftype
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Unlikely but possible. When password is supplied multiple times, we have
to free the previous allocation.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Steve French <smfrench@gmail.com>
When kzalloc fails, we will end up doing NULL pointer derefrence
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Pull cifs fixes from Steve French:
"Most important fixes in this set include three SMB3 fixes for stable
(including fix for possible kernel oops), and a workaround to allow
writes to Mac servers (only cifs dialect, not more current SMB2.1,
worked to Mac servers). Also fallocate support added, and lease fix
from Jeff"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
[SMB3] Enable fallocate -z support for SMB3 mounts
enable fallocate punch hole ("fallocate -p") for SMB3
Incorrect error returned on setting file compressed on SMB2
CIFS: Fix wrong directory attributes after rename
CIFS: Fix SMB2 readdir error handling
[CIFS] Possible null ptr deref in SMB2_tcon
[CIFS] Workaround MacOS server problem with SMB2.1 write response
cifs: handle lease F_UNLCK requests properly
Cleanup sparse file support by creating worker function for it
Add sparse file support to SMB2/SMB3 mounts
Add missing definitions for CIFS File System Attributes
cifs: remove unused function cifs_oplock_break_wait
Pull filesystem fixes from Jan Kara:
"udf, isofs, and ext3 bug fixes"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
ext3: Count internal journal as bsddf overhead in ext3_statfs
isofs: Fix unbounded recursion when processing relocated directories
udf: avoid unneeded up_write when fail to add entry in ->symlink
Pull x86 platform driver revert from Matthew Garrett:
"This clearly shouldn't have been merged. No excuse on my part"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
Revert "platform/x86/toshiba-apci.c possible bad if test?"
(one has a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=lhLd
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Reverting a 3.16 patch, fixing two bugs in device assignment (one has
a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free it
Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
KVM: x86: do not check CS.DPL against RPL during task switch
KVM: x86: Avoid emulating instructions on #UD mistakenly
PC, KVM, CMA: Fix regression caused by wrong get_order() use
kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
These are the two bug fixes I mentioned in the final merge window pull. One
is a reversed logic check in the device busy tests which can cause a nasty
hang and another crash seen in the new SCSI pool support if the use count ever
goes to zero.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJT85zGAAoJEDeqqVYsXL0Mnw4IAJ7BP+4nUlP7Oib8JfPu4Df2
b6dv3YEGe6th4awrHqUnATusjQLIybk/rgRKb6P50o1iX2VI+rs1mAm9esw9NalS
8aKzDMAv9pTRsRvAhe3AnIVGGCYAekV4AZWmsXQPCKqcsQZSZKAnIerLBf0lBemR
X3+1VhYtbB9z4o0Gpv4E5mR/7CqIouDpe5QGRKRY2+/Yyp2El6Vzwqr9XMLyOvmY
Y9WaIhM1UzABl+NAlDhMnA0Yw27UHJfWY6UWZ3Wa73DQCWsdZ6eydal4g8YNA5pB
+6UjMQKWh/bXHZl8v+eCuuXODXZQGazKOFFoc6SGumxAcuLraCBFsuU5m4AQ0NA=
=v+g2
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"These are the two bug fixes I mentioned in the final merge window
pull. One is a reversed logic check in the device busy tests which
can cause a nasty hang and another crash seen in the new SCSI pool
support if the use count ever goes to zero"
[ The device busy test already got merged from a patch earlier, so is
now duplicated. ]
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] save command pool address of Scsi_Host
[SCSI] fix qemu boot hang problem
The journal blocks of external journal device should not
be counted as overhead.
Signed-off-by: Chin-Tsung Cheng <chintzung@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The latest kernel fails to boot qemu arm images when using scsi
for disk access. Boot gets stuck after the following messages.
brd: module loaded
sym53c8xx 0000:00:0c.0: enabling device (0100 -> 0103)
sym0: <895a> rev 0x0 at pci 0000:00:0c.0 irq 93
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
Bisect points to commit 71e75c97f9 ("scsi: convert device_busy to
atomic_t"). Code inspection shows the following suspicious change
in scsi_request_fn.
out_delay:
- if (sdev->device_busy == 0 && !scsi_device_blocked(sdev))
+ if (atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev))
blk_delay_queue(q, SCSI_QUEUE_DELAY);
}
'sdev->device_busy == 0' was replaced with 'atomic_read(&sdev->device_busy)',
meaning the logic was reversed. Changing this expression to
'!atomic_read(&sdev->device_busy)' fixes the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Reviewed-by: Webb Scales <webbnh@hp.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: stable@vger.kernel.org
Reported-by: Chris Evans <cevans@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
We have released the ->i_data_sem before invoking udf_add_entry(),
so in following error path, we should not release this lock again.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
- raid6 data corruption during recovery
- raid6 livelock
- raid10 memory leaks.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=Pi8y
-----END PGP SIGNATURE-----
Merge tag 'md/3.17-fixes' of git://neil.brown.name/md
Pull md bugfixes from Neil Brown:
"Here are the bug-fixes I promised :-)
Funny how you start looking for one and other start appearing.
- raid6 data corruption during recovery
- raid6 livelock
- raid10 memory leaks"
* tag 'md/3.17-fixes' of git://neil.brown.name/md:
md/raid10: always initialise ->state on newly allocated r10_bio
md/raid10: avoid memory leak on error path during reshape.
md/raid10: Fix memory leak when raid10 reshape completes.
md/raid10: fix memory leak when reshaping a RAID10.
md/raid6: avoid data corruption during recovery of double-degraded RAID6
md/raid5: avoid livelock caused by non-aligned writes.
Three more commits needed for v3.17: A bug fix for reserved regions
based at address zero, a clarification on how to interpret existence of
both interrupts and interrupts-extended properties, and a fix to allow
device tree testcases to run on any platform.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ZaXA
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull devicetree fixes from Grant Likely:
"Three more commits needed for v3.17: A bug fix for reserved regions
based at address zero, a clarification on how to interpret existence
of both interrupts and interrupts-extended properties, and a fix to
allow device tree testcases to run on any platform"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/irq: Fix lookup to use 'interrupts-extended' property first
Enabling OF selftest to run without machine's devicetree
of: Allow mem_reserve of memory with a base address of zero
As a generic function, deassign_guest_irq() assumes it can be called
even if assign_guest_irq() is not be called successfully (which can be
triggered by ioctl from user mode, indirectly).
So for assign_guest_irq() failure process, need set 'dev->irq_source_id'
to -1 after free 'dev->irq_source_id', or deassign_guest_irq() may free
it again.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This reverts commit 682367c494,
which causes 32-bit SMP Windows 7 guests to panic.
SeaBIOS has a limit on the number of MTRRs that it can handle,
and this patch exceeded the limit. Better revert it.
Thanks to Nadav Amit for debugging the cause.
Cc: stable@nongnu.org
Reported-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This reverts the check added by commit 5045b46803 (KVM: x86: check CS.DPL
against RPL during task switch, 2014-05-15). Although the CS.DPL=CS.RPL
check is mentioned in table 7-1 of the SDM as causing a #TSS exception,
it is not mentioned in table 6-6 that lists "invalid TSS conditions"
which cause #TSS exceptions. In fact it causes some tests to fail, which
pass on bare-metal.
Keep the rest of the commit, since we will find new uses for it in 3.18.
Reported-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit d40a6898e5 mistakenly caused instructions which are not marked as
EmulateOnUD to be emulated upon #UD exception. The commit caused the check of
whether the instruction flags include EmulateOnUD to never be evaluated. As a
result instructions whose emulation is broken may be emulated. This fix moves
the evaluation of EmulateOnUD so it would be evaluated.
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
[Tweak operand order in &&, remove EmulateOnUD where it's now superfluous.
- Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
fc95ca7284 claims that there is no
functional change but this is not true as it calls get_order() (which
takes bytes) where it should have called order_base_2() and the kernel
stops on VM_BUG_ON().
This replaces get_order() with order_base_2() (round-up version of ilog2).
Suggested-by: Paul Mackerras <paulus@samba.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The third parameter of kvm_iommu_put_pages is wrong,
It should be 'gfn - slot->base_gfn'.
By making gfn very large, malicious guest or userspace can cause kvm to
go to this error path, and subsequently to pass a huge value as size.
Alternatively if gfn is small, then pages would be pinned but never
unpinned, causing host memory leak and local DOS.
Passing a reasonable but large value could be the most dangerous case,
because it would unpin a page that should have stayed pinned, and thus
allow the device to DMA into arbitrary memory. However, this cannot
happen because of the condition that can trigger the error:
- out of memory (where you can't allocate even a single page)
should not be possible for the attacker to trigger
- when exceeding the iommu's address space, guest pages after gfn
will also exceed the iommu's address space, and inside
kvm_iommu_put_pages() the iommu_iova_to_phys() will fail. The
page thus would not be unpinned at all.
Reported-by: Jack Morgenstein <jackm@mellanox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Most places which allocate an r10_bio zero the ->state, some don't.
As the r10_bio comes from a mempool, and the allocation function uses
kzalloc it is often zero anyway. But sometimes it isn't and it is
best to be safe.
I only noticed this because of the bug fixed by an earlier patch
where the r10_bios allocated for a reshape were left around to
be used by a subsequent resync. In that case the R10BIO_IsReshape
flag caused problems.
Signed-off-by: NeilBrown <neilb@suse.de>
When a raid10 commences a resync/recovery/reshape it allocates
some buffer space.
When a resync/recovery completes the buffer space is freed. But not
when the reshape completes.
This can result in a small memory leak.
There is a subtle side-effect of this bug. When a RAID10 is reshaped
to a larger array (more devices), the reshape is immediately followed
by a "resync" of the new space. This "resync" will use the buffer
space which was allocated for "reshape". This can cause problems
including a "BUG" in the SCSI layer. So this is suitable for -stable.
Cc: stable@vger.kernel.org (v3.5+)
Fixes: 3ea7daa5d7
Signed-off-by: NeilBrown <neilb@suse.de>
raid10 reshape clears unwanted bits from a bio->bi_flags using
a method which, while clumsy, worked until 3.10 when BIO_OWNS_VEC
was added.
Since then it clears that bit but shouldn't. This results in a
memory leak.
So change to used the approved method of clearing unwanted bits.
As this causes a memory leak which can consume all of memory
the fix is suitable for -stable.
Fixes: a38352e0ac
Cc: stable@vger.kernel.org (v3.10+)
Reported-by: mdraid.pkoch@dfgh.net (Peter Koch)
Signed-off-by: NeilBrown <neilb@suse.de>
During recovery of a double-degraded RAID6 it is possible for
some blocks not to be recovered properly, leading to corruption.
If a write happens to one block in a stripe that would be written to a
missing device, and at the same time that stripe is recovering data
to the other missing device, then that recovered data may not be written.
This patch skips, in the double-degraded case, an optimisation that is
only safe for single-degraded arrays.
Bug was introduced in 2.6.32 and fix is suitable for any kernel since
then. In an older kernel with separate handle_stripe5() and
handle_stripe6() functions the patch must change handle_stripe6().
Cc: stable@vger.kernel.org (2.6.32+)
Fixes: 6c0069c0ae
Cc: Yuri Tikhonov <yur@emcraft.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Reported-by: "Manibalan P" <pmanibalan@amiindia.co.in>
Tested-by: "Manibalan P" <pmanibalan@amiindia.co.in>
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1090423
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
If a stripe in a raid6 array received a write to each data block while
the array is degraded, and if any of these writes to a missing device
are not page-aligned, then a live-lock happens.
In this case the P and Q blocks need to be read so that the part of
the missing block which is *not* being updated by the write can be
constructed. Due to a logic error, these blocks are not loaded, so
the update cannot proceed and the stripe is 'handled' repeatedly in an
infinite loop.
This bug is unlikely as most writes are page aligned. However as it
can lead to a livelock it is suitable for -stable. It was introduced
in 3.16.
Cc: stable@vger.kernel.org (v3.16)
Fixed: 67f455486d
Signed-off-by: NeilBrown <neilb@suse.de>
fallocate -z (FALLOC_FL_ZERO_RANGE) can map to SMB3
FSCTL_SET_ZERO_DATA SMB3 FSCTL but FALLOC_FL_ZERO_RANGE
when called without the FALLOC_FL_KEEPSIZE flag set could want
the file size changed so we can not support that subcase unless
the file is cached (and thus we know the file size).
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org>
Implement FALLOC_FL_PUNCH_HOLE (which does not change the file size
fortunately so this matches the behavior of the equivalent SMB3
fsctl call) for SMB3 mounts. This allows "fallocate -p" to work.
It requires that the server support setting files as sparse
(which Windows allows).
Signed-off-by: Steve French <smfrench@gmail.com>
When the server (for an SMB2 or SMB3 mount) doesn't support
an ioctl (such as setting the compressed flag
on a file) we were incorrectly returning EIO instead
of EOPNOTSUPP, this is confusing e.g. doing chattr +c to a file
on a non-btrfs Samba partition, now the error returned is more
intuitive to the user. Also fixes error mapping on setting
hardlink to servers which don't support that.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: David Disseldorp <ddiss@suse.de>
When we requests rename we also need to update attributes
of both source and target parent directories. Not doing it
causes generic/309 xfstest to fail on SMB2 mounts. Fix this
by marking these directories for force revalidating.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
SMB2 servers indicates the end of a directory search with
STATUS_NO_MORE_FILE error code that is not processed now.
This causes generic/257 xfstest to fail. Fix this by triggering
the end of search by this error code in SMB2_query_directory.
Also when negotiating CIFS protocol we tell the server to close
the search automatically at the end and there is no need to do
it itself. In the case of SMB2 protocol, we need to close it
explicitly - separate close directory checks for different
protocols.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
As Raphael Geissert pointed out, tcon_error_exit can dereference tcon
and there is one path in which tcon can be null.
Signed-off-by: Steve French <smfrench@gmail.com>
CC: Stable <stable@vger.kernel.org> # v3.7+
Reported-by: Raphael Geissert <geissert@debian.org>
Pull x86 platform driver updates from Matthew Garrett:
"A moderate number of changes, but nothing awfully significant.
A lot of const cleanups, some reworking and additions to the rfkill
quirks in the asus driver, a new driver for generating falling laptop
events on Toshibas and some misc fixes.
Maybe vendors have stopped inventing things"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (41 commits)
platform/x86: Enable build support for toshiba_haps
Documentation: Add file about toshiba_haps module
platform/x86: Toshiba HDD Active Protection Sensor
asus-nb-wmi: Add wapf4 quirk for the U32U
alienware-wmi: make hdmi_mux enabled on case-by-case basis
ideapad-laptop: Constify DMI table and other r/o variables
asus-nb-wmi.c: Rename x401u quirk to wapf4
compal-laptop: correct invalid hwmon name
toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list
toshiba_acpi: Add extra check to backlight code
Fix log message about future removal of interface
ideapad-laptop: Disable touchpad interface on Yoga models
asus-nb-wmi: Add wapf4 quirk for the X550CC
intel_ips: Make ips_mcp_limits variables static
thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata
fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst
hp-wmi: Add missing __init annotations to initialization code
hp_accel: Constify ACPI and DMI tables
fujitsu-tablet: Mark DMI callbacks as __init code
dell-laptop: Mark dell_quirks[] DMI table as __initconst
...
Pull idle update from Len Brown:
"Two Intel-platform-specific updates to intel_idle, and a cosmetic
tweak to the turbostat utility"
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: tweak whitespace in output format
intel_idle: Broadwell support
intel_idle: Disable Baytrail Core and Module C6 auto-demotion
value (we don't fail unknown module params any more, just warn).
Cheers,
Rusty.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=zr2L
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module fix from Rusty Russell:
"Nasty potential bug if someone uses a known module param with an
invalid value (we don't fail unknown module params any more, just
warn)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: Clean up ro/nx after early module load failures
Pull virtio-rng update from Amit Shah:
"Add derating factor for use by hwrng core
Sending directly to you with the commit log changes Ted Ts'o pointed
out. Not sure if Rusty's back after his travel, but this already has
his s-o-b"
* 'rng-queue' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio:
virtio: rng: add derating factor for use by hwrng core
Pull btrfs updates from Chris Mason:
"These are all fixes I'd like to get out to a broader audience.
The biggest of the bunch is Mark's quota fix, which is also in the
SUSE kernel, and makes our subvolume quotas dramatically more
accurate.
I've been running xfstests with these against your current git
overnight, but I'm queueing up longer tests as well"
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: disable strict file flushes for renames and truncates
Btrfs: fix csum tree corruption, duplicate and outdated checksums
Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch
Btrfs: fix compressed write corruption on enospc
btrfs: correctly handle return from ulist_add
btrfs: qgroup: account shared subtrees during snapshot delete
Btrfs: read lock extent buffer while walking backrefs
Btrfs: __btrfs_mod_ref should always use no_quota
btrfs: adjust statfs calculations according to raid profiles
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJT7ey6AAoJEAAOaEEZVoIVgdkQAJfToVhgddVMOweeGo4wqPqM
lmS35dYVEy+gPfYhCU2Zytgk9yLlmNJeDT7Y+XGe4l15Ax/PDNuWLiRnUKRy1FrU
l7cbKRAn1L6TqBO2ang5t68Bw7ojUpRoKWKnDyjVAj80mZYRZPWvQOurLeTtra2o
XLnHbK54F36s07OXwSTZgbh/ffVQ1RMUBU8fy+0Ws3mTAbzO1KuB5Ws4pdt2ysjI
14pBHO553X0VXAJxGkH66xxblt1o+Q9aBZp7RL0VNtR4bGU4FMvXy+0D5G6h8AGt
rhl2PWTNKGg8HFgUK+7nCheH4j/0maXo541D3q+sJhbknRhD3n3x7IBvjkm9tdjB
OgTkAp1mwL21mJP21MOrAil8uwGoSr7qTCngZY6nNWH4L3EkVl27+LlGDtkgBp/n
BJyhcPbFSh+K4TTD3dg2rEx7wF/npQ6yPOljjvWXKJEm5lx3ZPkK1l1xS3QnVTMe
pLq+wTZ9v1cU7+9JFWICQwclv4unjIgqxLo7/op5P5KvTWOHFW4cjdwCBPVE1g3a
WC2c5jdB0Up6Z59aXAN3p5dk8MCy6NA41lkMfJN4AUAIzb6NvNeDBhrcFaHwXowm
jgCtEPqFN/HqsEwJmhJ7fcIEKYrOCuzeaR5tGuwJ11re/oULGXTgMkrFwgm/YWwu
esRBAc53/hZg6oo3ipUH
=09BX
-----END PGP SIGNATURE-----
Merge tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux
Pull file locking bugfixes from Jeff Layton:
"Most of these patches are to fix a long-standing regression that crept
in when the BKL was removed from the file-locking code. The code was
converted to use a conventional spinlock, but some fl_release_private
ops can block and you can end up sleeping inside the lock.
There's also a patch to make /proc/locks show delegations as 'DELEG'"
* tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux:
locks: update Locking documentation to clarify fl_release_private behavior
locks: move locks_free_lock calls in do_fcntl_add_lease outside spinlock
locks: defer freeing locks in locks_delete_lock until after i_lock has been dropped
locks: don't reuse file_lock in __posix_lock_file
locks: don't call locks_release_private from locks_copy_lock
locks: show delegations as "DELEG" in /proc/locks
Steve French
Pavel Shilovsky
Namjae Jeon
Linus Torvalds
Matthew Garrett
Chin-Tsung Cheng
Guenter Roeck
Jan Kara
Chao Yu
Davidlohr Bueso
Chen Gang
Paolo Bonzini
Nadav Amit
Alexey Kardashevskiy
Michael S. Tsirkin
NeilBrown