1. 30 Aug, 2011 2 commits
    • NeilBrown's avatar
      md/raid5: fix a hang on device failure. · 43220aa0
      NeilBrown authored
      Waiting for a 'blocked' rdev to become unblocked in the raid5d thread
      cannot work with internal metadata as it is the raid5d thread which
      will clear the blocked flag.
      This wasn't a problem in 3.0 and earlier as we only set the blocked
      flag when external metadata was used then.
      However we now set it always, so we need to be more careful.
      Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      43220aa0
    • NeilBrown's avatar
      md: fix clearing of 'blocked' flag in the presence of bad blocks. · 7da64a0a
      NeilBrown authored
      When the 'blocked' flag on a device is cleared while there are
      unacknowledged bad blocks we must fail the device.  This is needed for
      backwards compatability of the interface.
      
      The code currently uses the wrong test for "unacknowledged bad blocks
      exist".  Change it to the right test.
      Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      7da64a0a
  2. 24 Aug, 2011 4 commits
  3. 23 Aug, 2011 11 commits
  4. 22 Aug, 2011 10 commits
  5. 21 Aug, 2011 4 commits
  6. 20 Aug, 2011 5 commits
  7. 19 Aug, 2011 4 commits
    • Jiaying Zhang's avatar
      ext4: flush any pending end_io requests before DIO reads w/dioread_nolock · dccaf33f
      Jiaying Zhang authored
      There is a race between ext4 buffer write and direct_IO read with
      dioread_nolock mount option enabled. The problem is that we clear
      PageWriteback flag during end_io time but will do
      uninitialized-to-initialized extent conversion later with dioread_nolock.
      If an O_direct read request comes in during this period, ext4 will return
      zero instead of the recently written data.
      
      This patch checks whether there are any pending uninitialized-to-initialized
      extent conversion requests before doing O_direct read to close the race.
      Note that this is just a bandaid fix. The fundamental issue is that we
      clear PageWriteback flag before we really complete an IO, which is
      problem-prone. To fix the fundamental issue, we may need to implement an
      extent tree cache that we can use to look up pending to-be-converted extents.
      Signed-off-by: default avatarJiaying Zhang <jiayingz@google.com>
      Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
      Cc: stable@kernel.org
      dccaf33f
    • Jesse Barnes's avatar
      drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge · b095cd0a
      Jesse Barnes authored
      Prior to Ivybridge, the GFX_MODE would default to 0x800, meaning that
      MI_FLUSH would flush the TLBs in addition to the rest of the caches
      indicated in the MI_FLUSH command.  However starting with Ivybridge, the
      register defaults to 0x2800 out of reset, meaning that to invalidate the
      TLB we need to use PIPE_CONTROL.  Since we're not doing that yet, go
      back to the old default so things work.
      
      v2: don't forget to actually *clear* the new bit
      Reviewed-by: default avatarEric Anholt <eric@anholt.net>
      Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Tested-by: default avatarKenneth Graunke <kenneth@whitecape.org>
      Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
      b095cd0a
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 5ccc3874
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.dk/linux-block: (23 commits)
        Revert "cfq: Remove special treatment for metadata rqs."
        block: fix flush machinery for stacking drivers with differring flush flags
        block: improve rq_affinity placement
        blktrace: add FLUSH/FUA support
        Move some REQ flags to the common bio/request area
        allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
        xen/blkback: Make description more obvious.
        cfq-iosched: Add documentation about idling
        block: Make rq_affinity = 1 work as expected
        block: swim3: fix unterminated of_device_id table
        block/genhd.c: remove useless cast in diskstats_show()
        drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
        drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
        bsg-lib: add module.h include
        cfq-iosched: Reduce linked group count upon group destruction
        blk-throttle: correctly determine sync bio
        loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
        loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
        loop: add management interface for on-demand device allocation
        loop: replace linked list of allocated devices with an idr index
        ...
      5ccc3874
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 · 0c3bef61
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
        PCI: OF: Don't crash when bridge parent is NULL.
        PCI: export pcie_bus_configure_settings symbol
        PCI: code and comments cleanup
        PCI: make cardbus-bridge resources optional
        PCI: make SRIOV resources optional
        PCI : ability to relocate assigned pci-resources
        PCI: honor child buses add_size in hot plug configuration
        PCI: Set PCI-E Max Payload Size on fabric
      0c3bef61