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  1. 24 Aug, 2011 4 commits
  2. 23 Aug, 2011 11 commits
  3. 22 Aug, 2011 10 commits
  4. 21 Aug, 2011 4 commits
  5. 20 Aug, 2011 5 commits
  6. 19 Aug, 2011 6 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
    • Vasily Khoruzhick's avatar
      s3c-adc-battery: Fix compilation error due to missing header (module.h) · 815efa1e
      Vasily Khoruzhick authored
      Add linux/module.h to fix this compilation error:
      
      drivers/power/s3c_adc_battery.c:435:15: error: expected declaration specifiers or ‘...’ before string constant
      drivers/power/s3c_adc_battery.c:435:1: warning: data definition has no type or storage class
      drivers/power/s3c_adc_battery.c:435:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_AUTHOR’
      drivers/power/s3c_adc_battery.c:435:15: warning: function declaration isn’t a prototype
      drivers/power/s3c_adc_battery.c:436:20: error: expected declaration specifiers or ‘...’ before string constant
      drivers/power/s3c_adc_battery.c:436:1: warning: data definition has no type or storage class
      drivers/power/s3c_adc_battery.c:436:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_DESCRIPTION’
      drivers/power/s3c_adc_battery.c:436:20: warning: function declaration isn’t a prototype
      drivers/power/s3c_adc_battery.c:437:16: error: expected declaration specifiers or ‘...’ before string constant
      drivers/power/s3c_adc_battery.c:437:1: warning: data definition has no type or storage class
      drivers/power/s3c_adc_battery.c:437:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_LICENSE’
      drivers/power/s3c_adc_battery.c:437:16: warning: function declaration isn’t a prototype
      make[2]: *** [drivers/power/s3c_adc_battery.o] Error 1
      Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
      Signed-off-by: default avatarIan Lartey <ian@opensource.wolfsonmicro.com>
      Signed-off-by: default avatarAnton Vorontsov <cbouatmailru@gmail.com>
      815efa1e
    • Axel Lin's avatar
      max8997_charger: Needs module.h · 71aa79a8
      Axel Lin authored
      power/max8997_charger.c uses interfaces from linux/module.h,
      so it should include that file.  This fixes build errors.
      Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
      Acked-by: default avatarMyungJoo Ham <myungjoo.ham@samsung.com>
      Signed-off-by: default avatarAnton Vorontsov <cbouatmailru@gmail.com>
      71aa79a8