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  1. 14 10月, 2015 3 次提交
    • F
      Btrfs: fix double range unlock of hole region when reading page · 5e6ecb36
      由 Filipe Manana 提交于 
      If when reading a page we find a hole and our caller had already locked
the range (bio flags has the bit EXTENT_BIO_PARENT_LOCKED set), we end
up unlocking the hole's range and then later our caller unlocks it
again, which might have already been locked by some other task once
the first unlock happened.

Currently this can only happen during a call to the extent_same ioctl,
as it's the only caller of __do_readpage() that sets the bit
EXTENT_BIO_PARENT_LOCKED for bio flags.

Fix this by leaving the unlock exclusively to the caller.
Signed-off-by: NFilipe Manana <fdmanana@suse.com>
      5e6ecb36
    • F
      Btrfs: fix file corruption and data loss after cloning inline extents · 8039d87d
      由 Filipe Manana 提交于 
      Currently the clone ioctl allows to clone an inline extent from one file
to another that already has other (non-inlined) extents. This is a problem
because btrfs is not designed to deal with files having inline and regular
extents, if a file has an inline extent then it must be the only extent
in the file and must start at file offset 0. Having a file with an inline
extent followed by regular extents results in EIO errors when doing reads
or writes against the first 4K of the file.

Also, the clone ioctl allows one to lose data if the source file consists
of a single inline extent, with a size of N bytes, and the destination
file consists of a single inline extent with a size of M bytes, where we
have M > N. In this case the clone operation removes the inline extent
from the destination file and then copies the inline extent from the
source file into the destination file - we lose the M - N bytes from the
destination file, a read operation will get the value 0x00 for any bytes
in the the range [N, M] (the destination inode's i_size remained as M,
that's why we can read past N bytes).

So fix this by not allowing such destructive operations to happen and
return errno EOPNOTSUPP to user space.

Currently the fstest btrfs/035 tests the data loss case but it totally
ignores this - i.e. expects the operation to succeed and does not check
the we got data loss.

The following test case for fstests exercises all these cases that result
in file corruption and data loss:

  seq=`basename $0`
  seqres=$RESULT_DIR/$seq
  echo "QA output created by $seq"
  tmp=/tmp/$$
  status=1	# failure is the default!
  trap "_cleanup; exit \$status" 0 1 2 3 15

  _cleanup()
  {
      rm -f $tmp.*
  }

  # get standard environment, filters and checks
  . ./common/rc
  . ./common/filter

  # real QA test starts here
  _need_to_be_root
  _supported_fs btrfs
  _supported_os Linux
  _require_scratch
  _require_cloner
  _require_btrfs_fs_feature "no_holes"
  _require_btrfs_mkfs_feature "no-holes"

  rm -f $seqres.full

  test_cloning_inline_extents()
  {
      local mkfs_opts=$1
      local mount_opts=$2

      _scratch_mkfs $mkfs_opts >>$seqres.full 2>&1
      _scratch_mount $mount_opts

      # File bar, the source for all the following clone operations, consists
      # of a single inline extent (50 bytes).
      $XFS_IO_PROG -f -c "pwrite -S 0xbb 0 50" $SCRATCH_MNT/bar \
          | _filter_xfs_io

      # Test cloning into a file with an extent (non-inlined) where the
      # destination offset overlaps that extent. It should not be possible to
      # clone the inline extent from file bar into this file.
      $XFS_IO_PROG -f -c "pwrite -S 0xaa 0K 16K" $SCRATCH_MNT/foo \
          | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo

      # Doing IO against any range in the first 4K of the file should work.
      # Due to a past clone ioctl bug which allowed cloning the inline extent,
      # these operations resulted in EIO errors.
      echo "File foo data after clone operation:"
      # All bytes should have the value 0xaa (clone operation failed and did
      # not modify our file).
      od -t x1 $SCRATCH_MNT/foo
      $XFS_IO_PROG -c "pwrite -S 0xcc 0 100" $SCRATCH_MNT/foo | _filter_xfs_io

      # Test cloning the inline extent against a file which has a hole in its
      # first 4K followed by a non-inlined extent. It should not be possible
      # as well to clone the inline extent from file bar into this file.
      $XFS_IO_PROG -f -c "pwrite -S 0xdd 4K 12K" $SCRATCH_MNT/foo2 \
          | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo2

      # Doing IO against any range in the first 4K of the file should work.
      # Due to a past clone ioctl bug which allowed cloning the inline extent,
      # these operations resulted in EIO errors.
      echo "File foo2 data after clone operation:"
      # All bytes should have the value 0x00 (clone operation failed and did
      # not modify our file).
      od -t x1 $SCRATCH_MNT/foo2
      $XFS_IO_PROG -c "pwrite -S 0xee 0 90" $SCRATCH_MNT/foo2 | _filter_xfs_io

      # Test cloning the inline extent against a file which has a size of zero
      # but has a prealloc extent. It should not be possible as well to clone
      # the inline extent from file bar into this file.
      $XFS_IO_PROG -f -c "falloc -k 0 1M" $SCRATCH_MNT/foo3 | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo3

      # Doing IO against any range in the first 4K of the file should work.
      # Due to a past clone ioctl bug which allowed cloning the inline extent,
      # these operations resulted in EIO errors.
      echo "First 50 bytes of foo3 after clone operation:"
      # Should not be able to read any bytes, file has 0 bytes i_size (the
      # clone operation failed and did not modify our file).
      od -t x1 $SCRATCH_MNT/foo3
      $XFS_IO_PROG -c "pwrite -S 0xff 0 90" $SCRATCH_MNT/foo3 | _filter_xfs_io

      # Test cloning the inline extent against a file which consists of a
      # single inline extent that has a size not greater than the size of
      # bar's inline extent (40 < 50).
      # It should be possible to do the extent cloning from bar to this file.
      $XFS_IO_PROG -f -c "pwrite -S 0x01 0 40" $SCRATCH_MNT/foo4 \
          | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo4

      # Doing IO against any range in the first 4K of the file should work.
      echo "File foo4 data after clone operation:"
      # Must match file bar's content.
      od -t x1 $SCRATCH_MNT/foo4
      $XFS_IO_PROG -c "pwrite -S 0x02 0 90" $SCRATCH_MNT/foo4 | _filter_xfs_io

      # Test cloning the inline extent against a file which consists of a
      # single inline extent that has a size greater than the size of bar's
      # inline extent (60 > 50).
      # It should not be possible to clone the inline extent from file bar
      # into this file.
      $XFS_IO_PROG -f -c "pwrite -S 0x03 0 60" $SCRATCH_MNT/foo5 \
          | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo5

      # Reading the file should not fail.
      echo "File foo5 data after clone operation:"
      # Must have a size of 60 bytes, with all bytes having a value of 0x03
      # (the clone operation failed and did not modify our file).
      od -t x1 $SCRATCH_MNT/foo5

      # Test cloning the inline extent against a file which has no extents but
      # has a size greater than bar's inline extent (16K > 50).
      # It should not be possible to clone the inline extent from file bar
      # into this file.
      $XFS_IO_PROG -f -c "truncate 16K" $SCRATCH_MNT/foo6 | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo6

      # Reading the file should not fail.
      echo "File foo6 data after clone operation:"
      # Must have a size of 16K, with all bytes having a value of 0x00 (the
      # clone operation failed and did not modify our file).
      od -t x1 $SCRATCH_MNT/foo6

      # Test cloning the inline extent against a file which has no extents but
      # has a size not greater than bar's inline extent (30 < 50).
      # It should be possible to clone the inline extent from file bar into
      # this file.
      $XFS_IO_PROG -f -c "truncate 30" $SCRATCH_MNT/foo7 | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo7

      # Reading the file should not fail.
      echo "File foo7 data after clone operation:"
      # Must have a size of 50 bytes, with all bytes having a value of 0xbb.
      od -t x1 $SCRATCH_MNT/foo7

      # Test cloning the inline extent against a file which has a size not
      # greater than the size of bar's inline extent (20 < 50) but has
      # a prealloc extent that goes beyond the file's size. It should not be
      # possible to clone the inline extent from bar into this file.
      $XFS_IO_PROG -f -c "falloc -k 0 1M" \
                      -c "pwrite -S 0x88 0 20" \
                      $SCRATCH_MNT/foo8 | _filter_xfs_io
      $CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/bar $SCRATCH_MNT/foo8

      echo "File foo8 data after clone operation:"
      # Must have a size of 20 bytes, with all bytes having a value of 0x88
      # (the clone operation did not modify our file).
      od -t x1 $SCRATCH_MNT/foo8

      _scratch_unmount
  }

  echo -e "\nTesting without compression and without the no-holes feature...\n"
  test_cloning_inline_extents

  echo -e "\nTesting with compression and without the no-holes feature...\n"
  test_cloning_inline_extents "" "-o compress"

  echo -e "\nTesting without compression and with the no-holes feature...\n"
  test_cloning_inline_extents "-O no-holes" ""

  echo -e "\nTesting with compression and with the no-holes feature...\n"
  test_cloning_inline_extents "-O no-holes" "-o compress"

  status=0
  exit

Cc: stable@vger.kernel.org
Signed-off-by: NFilipe Manana <fdmanana@suse.com>
      8039d87d
    • R
      btrfs: fix resending received snapshot with parent · b96b1db0
      由 Robin Ruede 提交于 
      This fixes a regression introduced by 37b8d27d between v4.1 and v4.2.

When a snapshot is received, its received_uuid is set to the original
uuid of the subvolume. When that snapshot is then resent to a third
filesystem, it's received_uuid is set to the second uuid
instead of the original one. The same was true for the parent_uuid.
This behaviour was partially changed in 37b8d27d, but in that patch
only the parent_uuid was taken from the real original,
not the uuid itself, causing the search for the parent to fail in
the case below.

This happens for example when trying to send a series of linked
snapshots (e.g. created by snapper) from the backup file system back
to the original one.

The following commands reproduce the issue in v4.2.1
(no error in 4.1.6)

    # setup three test file systems
    for i in 1 2 3; do
	    truncate -s 50M fs$i
	    mkfs.btrfs fs$i
	    mkdir $i
	    mount fs$i $i
    done
    echo "content" > 1/testfile
    btrfs su snapshot -r 1/ 1/snap1
    echo "changed content" > 1/testfile
    btrfs su snapshot -r 1/ 1/snap2

    # works fine:
    btrfs send 1/snap1 | btrfs receive 2/
    btrfs send -p 1/snap1 1/snap2 | btrfs receive 2/

    # ERROR: could not find parent subvolume
    btrfs send 2/snap1 | btrfs receive 3/
    btrfs send -p 2/snap1 2/snap2 | btrfs receive 3/
Signed-off-by: NRobin Ruede <rruede+git@gmail.com>
Fixes: 37b8d27d ("Btrfs: use received_uuid of parent during send")
Cc: stable@vger.kernel.org # v4.2+
Reviewed-by: NFilipe Manana <fdmanana@suse.com>
Tested-by: NEd Tomlinson <edt@aei.ca>
      b96b1db0
  3. 13 10月, 2015 4 次提交
    • F
      Btrfs: send, fix file corruption due to incorrect cloning operations · d906d49f
      由 Filipe Manana 提交于 
      If we have a file that shares an extent with other files, when processing
the extent item relative to a shared extent, we blindly issue a clone
operation that will target a length matching the length in the extent item
and uses as a source some other file the receiver already has and points
to the same extent. However that range in the other file might not
exclusively point only to the shared extent, and so using that length
will result in the receiver getting a file with different data from the
one in the send snapshot. This issue happened both for incremental and
full send operations.

So fix this by issuing clone operations with lengths that don't cover
regions of the source file that point to different extents (or have holes).

The following test case for fstests reproduces the problem.

  seq=`basename $0`
  seqres=$RESULT_DIR/$seq
  echo "QA output created by $seq"

  tmp=/tmp/$$
  status=1	# failure is the default!
  trap "_cleanup; exit \$status" 0 1 2 3 15

  _cleanup()
  {
      rm -fr $send_files_dir
      rm -f $tmp.*
  }

  # get standard environment, filters and checks
  . ./common/rc
  . ./common/filter

  # real QA test starts here
  _supported_fs btrfs
  _supported_os Linux
  _require_scratch
  _need_to_be_root
  _require_cp_reflink
  _require_xfs_io_command "fpunch"

  send_files_dir=$TEST_DIR/btrfs-test-$seq

  rm -f $seqres.full
  rm -fr $send_files_dir
  mkdir $send_files_dir

  _scratch_mkfs >>$seqres.full 2>&1
  _scratch_mount

  # Create our test file with a single 100K extent.
  $XFS_IO_PROG -f -c "pwrite -S 0xaa 0K 100K" \
     $SCRATCH_MNT/foo | _filter_xfs_io

  # Clone our file into a new file named bar.
  cp --reflink=always $SCRATCH_MNT/foo $SCRATCH_MNT/bar

  # Now overwrite parts of our foo file.
  $XFS_IO_PROG -c "pwrite -S 0xbb 50K 10K" \
     -c "pwrite -S 0xcc 90K 10K" \
     -c "fpunch 70K 10k" \
     $SCRATCH_MNT/foo | _filter_xfs_io

  _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT \
     $SCRATCH_MNT/snap

  echo "File digests in the original filesystem:"
  md5sum $SCRATCH_MNT/snap/foo | _filter_scratch
  md5sum $SCRATCH_MNT/snap/bar | _filter_scratch

  _run_btrfs_util_prog send $SCRATCH_MNT/snap -f $send_files_dir/1.snap

  # Now recreate the filesystem by receiving the send stream and verify
  # we get the same file contents that the original filesystem had.
  _scratch_unmount
  _scratch_mkfs >>$seqres.full 2>&1
  _scratch_mount

  _run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap

  # We expect the destination filesystem to have exactly the same file
  # data as the original filesystem.
  # The btrfs send implementation had a bug where it sent a clone
  # operation from file foo into file bar covering the whole [0, 100K[
  # range after creating and writing the file foo. This was incorrect
  # because the file bar now included the updates done to file foo after
  # we cloned foo to bar, breaking the COW nature of reflink copies
  # (cloned extents).
  echo "File digests in the new filesystem:"
  md5sum $SCRATCH_MNT/snap/foo | _filter_scratch
  md5sum $SCRATCH_MNT/snap/bar | _filter_scratch

  status=0
  exit

Another test case that reproduces the problem when we have compressed
extents:

  seq=`basename $0`
  seqres=$RESULT_DIR/$seq
  echo "QA output created by $seq"

  tmp=/tmp/$$
  status=1	# failure is the default!
  trap "_cleanup; exit \$status" 0 1 2 3 15

  _cleanup()
  {
      rm -fr $send_files_dir
      rm -f $tmp.*
  }

  # get standard environment, filters and checks
  . ./common/rc
  . ./common/filter

  # real QA test starts here
  _supported_fs btrfs
  _supported_os Linux
  _require_scratch
  _need_to_be_root
  _require_cp_reflink

  send_files_dir=$TEST_DIR/btrfs-test-$seq

  rm -f $seqres.full
  rm -fr $send_files_dir
  mkdir $send_files_dir

  _scratch_mkfs >>$seqres.full 2>&1
  _scratch_mount "-o compress"

  # Create our file with an extent of 100K starting at file offset 0K.
  $XFS_IO_PROG -f -c "pwrite -S 0xaa 0K 100K"       \
                  -c "fsync"                        \
                  $SCRATCH_MNT/foo | _filter_xfs_io

  # Rewrite part of the previous extent (its first 40K) and write a new
  # 100K extent starting at file offset 100K.
  $XFS_IO_PROG -c "pwrite -S 0xbb 0K 40K"    \
          -c "pwrite -S 0xcc 100K 100K"      \
          $SCRATCH_MNT/foo | _filter_xfs_io

  # Our file foo now has 3 file extent items in its metadata:
  #
  # 1) One covering the file range 0 to 40K;
  # 2) One covering the file range 40K to 100K, which points to the first
  #    extent we wrote to the file and has a data offset field with value
  #    40K (our file no longer uses the first 40K of data from that
  #    extent);
  # 3) One covering the file range 100K to 200K.

  # Now clone our file foo into file bar.
  cp --reflink=always $SCRATCH_MNT/foo $SCRATCH_MNT/bar

  # Create our snapshot for the send operation.
  _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT \
          $SCRATCH_MNT/snap

  echo "File digests in the original filesystem:"
  md5sum $SCRATCH_MNT/snap/foo | _filter_scratch
  md5sum $SCRATCH_MNT/snap/bar | _filter_scratch

  _run_btrfs_util_prog send $SCRATCH_MNT/snap -f $send_files_dir/1.snap

  # Now recreate the filesystem by receiving the send stream and verify we
  # get the same file contents that the original filesystem had.
  # Btrfs send used to issue a clone operation from foo's range
  # [80K, 140K[ to bar's range [40K, 100K[ when cloning the extent pointed
  # to by foo's second file extent item, this was incorrect because of bad
  # accounting of the file extent item's data offset field. The correct
  # range to clone from should have been [40K, 100K[.
  _scratch_unmount
  _scratch_mkfs >>$seqres.full 2>&1
  _scratch_mount "-o compress"

  _run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap

  echo "File digests in the new filesystem:"
  # Must match the digests we got in the original filesystem.
  md5sum $SCRATCH_MNT/snap/foo | _filter_scratch
  md5sum $SCRATCH_MNT/snap/bar | _filter_scratch

  status=0
  exit
Signed-off-by: NFilipe Manana <fdmanana@suse.com>
      d906d49f
    • C
      Merge branch 'fix/waitqueue-barriers' of... · 6db4a733
      由 Chris Mason 提交于 
      Merge branch 'fix/waitqueue-barriers' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4
      6db4a733
    • C
      Merge branch 'anand/sysfs-updates-v4.3-rc3' of... · 62fb50ab
      由 Chris Mason 提交于 
      Merge branch 'anand/sysfs-updates-v4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4
Signed-off-by: NChris Mason <clm@fb.com>
      62fb50ab
    • C
      Merge branch 'cleanup/messages' of... · 640926ff
      由 Chris Mason 提交于 
      Merge branch 'cleanup/messages' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4
      640926ff
  5. 12 10月, 2015 7 次提交
  7. 11 10月, 2015 14 次提交
  9. 10 10月, 2015 11 次提交
    • L
      Merge tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 149fadf2
      由 Linus Torvalds 提交于 
      Pull power management and ACPI fixes from Rafael Wysocki:
 "These are four fixes for bugs in the devfreq and cpufreq subsystems,
  including two regression fixes (one for a recent regression and one
  for a problem introduced in 4.2).

  Specifics:

   - Two fixes for cpufreq regressions, an acpi-cpufreq driver one
     introduced during the 4.2 cycle when we started to preserve cpufreq
     directories for offline CPUs and a general one introduced recently
     (Srinivas Pandruvada).

   - Two devfreq fixes, one for a double kfree() in an error code path
     and one for a confusing sysfs-related failure (Geliang Tang, Tobias
     Jakobi)"

* tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: prevent lockup on reading scaling_available_frequencies
  cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
  PM / devfreq: fix double kfree
  PM / devfreq: Fix governor_store()
      149fadf2
    • L
      Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile · 71419b7b
      由 Linus Torvalds 提交于 
      Pull strscpy powerpc fix from Chris Metcalf.

Fix powerpc big-endian build.

* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/powerpc: provide zero_bytemask() for big-endian
      71419b7b
    • L
      Merge tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · f4ba1cf8
      由 Linus Torvalds 提交于 
      Pull sound fixes from Takashi Iwai:
 "We see various small fixes, but nothing looks too scary, all are small
  gentle bug fixes:

   - Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552,
     TLV320, WM8962

   - A couple of dwc and imx-ssi fixes

   - Usual oneliner HD-audio quirks

   - An old emux synth code fix"

* tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  MAINTAINERS: Remove wm97xx entry
  ASoC: tas2552: fix dBscale-min declaration
  ALSA: synth: Fix conflicting OSS device registration on AWE32
  ALSA: hda - Disable power_save_node for IDT 92HD73xx chips
  ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
  ALSA: hda: Add dock support for ThinkPad T550
  ASoC: dwc: fix dma stop transferring issue
  ASoC: dwc: correct irq clear method
  ASoC: tlv320aic3x: Prevent writing reserved registers on tlv320aic3104 CODECs
  ASoC: rt5645: Correct the naming and setting of ADC Boost Volume Control
  ASoC: sgtl5000: fix wrong register MIC_BIAS_VOLTAGE setup on probe
  ASoC: wm8962: balance pm_runtime_enable
  ASoC: imx-ssi: Fix DAI hardware signal inversions
  ASoC: sgtl5000: fix error message output for MicBias voltage
  ASoC: db1200: Fix DAI link format for db1300 and db1550
      f4ba1cf8
    • L
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · fe621fde
      由 Linus Torvalds 提交于 
      Pull clk fixes from Stephen Boyd:
 "A Samsung driver fix and a handful of TI driver fixes"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: ti: dflt: fix enable_reg validity check
  clk: ti: fix dual-registration of uart4_ick
  clk: ti: clk-7xx: Remove hardwired ABE clock configuration
  clk: samsung: fix cpu clock's flags checking
      fe621fde
    • L
      Merge tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmc · 8140e736
      由 Linus Torvalds 提交于 
      Pull MMC fixes from Ulf Hansson:
 "MMC host:
   - omap_hsmmc: Fix boot regressions for omap4430
   - omap_hsmmc: Fix legacy boot regression for omap3
   - sdhci-pxav3: Fix some clock issues for Armada 38x
   - sdhci-pxav3: Fix error handling at probe
   - sdhci-of-at91: Fix clock stabilization problem"

* tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk
  mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST
  mmc: sdhci-pxav3: fix error handling of armada_38x_quirks
  mmc: sdhci-pxav3: disable clock inversion for HS MMC cards
  mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driver
  mmc: host: omap_hsmmc: Fix MMC for omap3 legacy booting
  Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status"
      8140e736
    • L
      Merge tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 04445556
      由 Linus Torvalds 提交于 
      Pull dm fixes from Mike Snitzer:
 "Three stable fixes:

   - DM core AB-BA deadlock fix in the device destruction path (vs
     device creation's DM table swap).

   - DM raid fix to properly round up the region_size to the next
     power-of-2.

   - DM cache fix for a NULL pointer seen while switching from the
     "cleaner" cache policy.

  Two fixes for regressions introduced during the 4.3 merge:

   - request-based DM error propagation regressed due to incorrect
     changes introduced when adding the bi_error field to bio.

   - DM snapshot fix to only support snapshots that overflow if the
     client (e.g. lvm2) is prepared to deal with the associated
     snapshot status interface change"

* tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm snapshot: add new persistent store option to support overflow
  dm cache: fix NULL pointer when switching from cleaner policy
  dm: fix request-based dm error reporting
  dm raid: fix round up of default region size
  dm: fix AB-BA deadlock in __dm_destroy()
      04445556
    • L
      Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 175d58cf
      由 Linus Torvalds 提交于 
      Pull btrfs fixes from Chris Mason:
 "These are small and assorted.  Neil's is the oldest, I dropped the
  ball thinking he was going to send it in"

* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: support NFSv2 export
  Btrfs: open_ctree: Fix possible memory leak
  Btrfs: fix deadlock when finalizing block group creation
  Btrfs: update fix for read corruption of compressed and shared extents
  Btrfs: send, fix corner case for reference overwrite detection
      175d58cf
    • L
      Merge tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux · 38aa0a59
      由 Linus Torvalds 提交于 
      Pull nfsd bugfix from Bruce Fields:
 "Just one RDMA bugfix"

* tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux:
  svcrdma: handle rdma read with a non-zero initial page offset
      38aa0a59
    • L
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 5163ac76
      由 Linus Torvalds 提交于 
      Pull ARM SoC fixes from Arnd Bergmann:
 "The fixes for this week include one small patch that was years in the
  making and that finally fixes using all eight CPUs on exynos542x.

  The rest are lots of minor changes for sunxi, imx, exynos and shmobile

   - fixing the minimum voltage for Allwinner A20
   - thermal boot issue on SMDK5250.
   - invalid clock used for FIMD IOMMU.
   - audio on Renesas r8a7790/r8a7791
   - invalid clock used for FIMD IOMMU
   - LEDs on exynos5422-odroidxu3-common
   - usb pin control for imx-rex
   - imx53: fix PMIC interrupt level
   - a Makefile typo"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
  ARM: dts: Fix bootup thermal issue on smdk5250
  ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound
  ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound
  arm-cci500: Don't enable PMU driver by default
  ARM: dts: fix usb pin control for imx-rex dts
  ARM: imx53: qsrb: fix PMIC interrupt level
  ARM: imx53: include IRQ dt-bindings header
  ARM: dts: add suspend opp to exynos4412
  ARM: dts: Fix LEDs on exynos5422-odroidxu3
  ARM: EXYNOS: reset Little cores when cpu is up
  ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus
  ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
      5163ac76
    • M
      dm snapshot: add new persistent store option to support overflow · b0d3cc01
      由 Mike Snitzer 提交于 
      Commit 76c44f6d introduced the possibly for "Overflow" to be reported
by the snapshot device's status.  Older userspace (e.g. lvm2) does not
handle the "Overflow" status response.

Fix this incompatibility by requiring newer userspace code, that can
cope with "Overflow", request the persistent store with overflow support
by using "PO" (Persistent with Overflow) for the snapshot store type.
Reported-by: NZdenek Kabelac <zkabelac@redhat.com>
Fixes: 76c44f6d ("dm snapshot: don't invalidate on-disk image on snapshot write overflow")
Reviewed-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      b0d3cc01
    • R
      Merge branches 'pm-devfreq' and 'pm-cpufreq' · 670aee3f
      由 Rafael J. Wysocki 提交于 
      * pm-devfreq:
  PM / devfreq: fix double kfree
  PM / devfreq: Fix governor_store()

* pm-cpufreq:
  cpufreq: prevent lockup on reading scaling_available_frequencies
  cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
      670aee3f
  11. 09 10月, 2015 1 次提交