1. 22 Jan, 2015 6 commits
    • David Sterba's avatar
      btrfs: update message levels for errors · 68b663d1
      David Sterba authored
      Several messages that point to some internal problem, level INFO is
      wrong here.
      Signed-off-by: default avatarDavid Sterba <dsterba@suse.cz>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      68b663d1
    • Filipe Manana's avatar
      Btrfs: fix setup_leaf_for_split() to avoid leaf corruption · a8df6fe6
      Filipe Manana authored
      We were incorrectly detecting when the target key didn't exist anymore
      after releasing the path and re-searching the tree. This could make
      us split or duplicate (btrfs_split_item() and btrfs_duplicate_item()
      are its only callers at the moment) an item when we should not.
      
      For the case of duplicating an item, we currently only duplicate
      checksum items (csum tree) and file extent items (fs/subvol trees).
      For the checksum items we end up overriding the item completely,
      but for file extent items we update only some of their fields in
      the copy (done in __btrfs_drop_extents), which means we can end up
      having a logical corruption for some values.
      
      Also for the case where we duplicate a file extent item it will make
      us produce a leaf with a wrong key order, as btrfs_duplicate_item()
      advances us to the next slot and then its caller sets a smaller key
      on the new item at that slot (like in __btrfs_drop_extents() e.g.).
      Alternatively if the tree search in setup_leaf_for_split() leaves
      with path->slots[0] == btrfs_header_nritems(path->nodes[0]), we end
      up accessing beyond the leaf's end (when we check if the item's size
      has changed) and make our caller insert an item at the invalid slot
      btrfs_header_nritems(path->nodes[0]) + 1, causing an invalid memory
      access if the leaf is full or nearly full.
      
      This issue has been present since the introduction of this function
      in 2009:
      
          Btrfs: Add btrfs_duplicate_item
          commit ad48fd75Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      a8df6fe6
    • Chris Mason's avatar
      Merge branch 'cleanup/blocksize-diet-part2' of... · 57bbddd7
      Chris Mason authored
      Merge branch 'cleanup/blocksize-diet-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus
      57bbddd7
    • Chris Mason's avatar
      Merge branch 'fix/find-item-path-leak' of... · d3541834
      Chris Mason authored
      Merge branch 'fix/find-item-path-leak' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus
      d3541834
    • Josef Bacik's avatar
      Btrfs: track dirty block groups on their own list · ce93ec54
      Josef Bacik authored
      Currently any time we try to update the block groups on disk we will walk _all_
      block groups and check for the ->dirty flag to see if it is set.  This function
      can get called several times during a commit.  So if you have several terabytes
      of data you will be a very sad panda as we will loop through _all_ of the block
      groups several times, which makes the commit take a while which slows down the
      rest of the file system operations.
      
      This patch introduces a dirty list for the block groups that we get added to
      when we dirty the block group for the first time.  Then we simply update any
      block groups that have been dirtied since the last time we called
      btrfs_write_dirty_block_groups.  This allows us to clean up how we write the
      free space cache out so it is much cleaner.  Thanks,
      Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      ce93ec54
    • Josef Bacik's avatar
      Btrfs: change how we track dirty roots · e7070be1
      Josef Bacik authored
      I've been overloading root->dirty_list to keep track of dirty roots and which
      roots need to have their commit roots switched at transaction commit time.  This
      could cause us to lose an update to the root which could corrupt the file
      system.  To fix this use a state bit to know if the root is dirty, and if it
      isn't set we go ahead and move the root to the dirty list.  This way if we
      re-dirty the root after adding it to the switch_commit list we make sure to
      update it.  This also makes it so that the extent root is always the last root
      on the dirty list to try and keep the amount of churn down at this point in the
      commit.  Thanks,
      Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      e7070be1
  2. 18 Jan, 2015 4 commits
    • Linus Torvalds's avatar
      Linux 3.19-rc5 · ec6f34e5
      Linus Torvalds authored
      ec6f34e5
    • Linus Torvalds's avatar
      Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · d0ac5d8e
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "We've been sitting on our fixes branch for a while, so this batch is
        unfortunately on the large side.
      
        A lot of these are tweaks and fixes to device trees, fixing various
        bugs around clocks, reg ranges, etc.  There's also a few defconfig
        updates (which are on the late side, no more of those).
      
        All in all the diffstat is bigger than ideal at this time, but nothing
        in here seems particularly risky"
      
      * tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
        reset: sunxi: fix spinlock initialization
        ARM: dts: disable CCI on exynos5420 based arndale-octa
        drivers: bus: check cci device tree node status
        ARM: rockchip: disable jtag/sdmmc autoswitching on rk3288
        ARM: nomadik: fix up leftover device tree pins
        ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
        ARM: at91/dt: sam9263: Add missing clocks to lcdc node
        ARM: at91: sama5d3: dt: correct the sound route
        ARM: at91/dt: sama5d4: fix the timer reg length
        ARM: exynos_defconfig: Enable LM90 driver
        ARM: exynos_defconfig: Enable options for display panel support
        arm: dts: Use pmu_system_controller phandle for dp phy
        ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
        ARM: dts: berlin: correct BG2Q's SM GPIO location.
        ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
        ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
        ARM: dts: Revert disabling of smc91x for n900
        ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
        ARM: dts: dra7-evm: fix qspi device tree partition size
        ARM: omap2plus_defconfig: use CONFIG_CPUFREQ_DT
        ...
      d0ac5d8e
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux · 12ba8571
      Linus Torvalds authored
      Pull clock driver fixes from Mike Turquette:
       "Small number of fixes for clock drivers and a single null pointer
        dereference fix in the framework core code.
      
        The driver fixes vary from fixing section mismatch warnings to
        preventing machines from hanging (and preventing developers from
        crying)"
      
      * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
        clk: fix possible null pointer dereference
        Revert "clk: ppc-corenet: Fix Section mismatch warning"
        clk: rockchip: fix deadlock possibility in cpuclk
        clk: berlin: bg2q: remove non-exist "smemc" gate clock
        clk: at91: keep slow clk enabled to prevent system hang
        clk: rockchip: fix rk3288 cpuclk core dividers
        clk: rockchip: fix rk3066 pll lock bit location
        clk: rockchip: Fix clock gate for rk3188 hclk_emem_peri
        clk: rockchip: add CLK_IGNORE_UNUSED flag to fix rk3066/rk3188 USB Host
      12ba8571
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 901b2082
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is one fix for a Multiqueue sleeping in invalid context problem
        and a MAINTAINER file update for Qlogic"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: ->queue_rq can't sleep
        MAINTAINERS: Update maintainer list for qla4xxx
      901b2082
  3. 17 Jan, 2015 18 commits
  4. 16 Jan, 2015 12 commits