Eric Lee / smarc-fsl-linux-kernel

17 Dec, 2010

1 commit

27 Jul, 2010

1 commit

24 May, 2010

2 commits

  • ccf7c23fc   xfs: Ensure inode allocation buffers are fully replayed ... Browse Code »

    With delayed logging, we can get inode allocation buffers in the
    same transaction inode unlink buffers. We don't currently mark inode
    allocation buffers in the log, so inode unlink buffers take
    precedence over allocation buffers.

    The result is that when they are combined into the same checkpoint,
    only the unlinked inode chain fields are replayed, resulting in
    uninitialised inode buffers being detected when the next inode
    modification is replayed.

    To fix this, we need to ensure that we do not set the inode buffer
    flag in the buffer log item format flags if the inode allocation has
    not already hit the log. To avoid requiring a change to log
    recovery, we really need to make this a modification that relies
    only on in-memory sate.

    We can do this by checking during buffer log formatting (while the
    CIL cannot be flushed) if we are still in the same sequence when we
    commit the unlink transaction as the inode allocation transaction.
    If we are, then we do not add the inode buffer flag to the buffer
    log format item flags. This means the entire buffer will be
    replayed, not just the unlinked fields. We do this while
    CIL flusheѕ are locked out to ensure that we don't race with the
    sequence numbers changing and hence fail to put the inode buffer
    flag in the buffer format flags when we really need to.

    Signed-off-by: Dave Chinner
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Dave Chinner
     
  • c11554104   xfs: Clean up XFS_BLI_* flag namespace ... Browse Code »

    Clean up the buffer log format (XFS_BLI_*) flags because they have a
    polluted namespace. They XFS_BLI_ prefix is used for both in-memory
    and on-disk flag feilds, but have overlapping values for different
    flags. Rename the buffer log format flags to use the XFS_BLF_*
    prefix to avoid confusing them with the in-memory XFS_BLI_* prefixed
    flags.

    Signed-off-by: Dave Chinner
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Dave Chinner
     

19 May, 2010

1 commit

  • 9abbc539b   xfs: add log item recovery tracing ... Browse Code »

    Currently there is no tracing in log recovery, so it is difficult to
    determine what is going on when something goes wrong.

    Add tracing for log item recovery to provide visibility into the log
    recovery process. The tracing added shows regions being extracted
    from the log transactions and added to the transaction hash forming
    recovery items, followed by the reordering, cancelling and finally
    recovery of the items.

    Signed-off-by: Dave Chinner
    Reviewed-by: Christoph Hellwig

    Dave Chinner
     

15 Dec, 2009

1 commit

  • 0b1b213fc   xfs: event tracing support ... Browse Code »

    Convert the old xfs tracing support that could only be used with the
    out of tree kdb and xfsidbg patches to use the generic event tracer.

    To use it make sure CONFIG_EVENT_TRACING is enabled and then enable
    all xfs trace channels by:

    echo 1 > /sys/kernel/debug/tracing/events/xfs/enable

    or alternatively enable single events by just doing the same in one
    event subdirectory, e.g.

    echo 1 > /sys/kernel/debug/tracing/events/xfs/xfs_ihold/enable

    or set more complex filters, etc. In Documentation/trace/events.txt
    all this is desctribed in more detail. To reads the events do a

    cat /sys/kernel/debug/tracing/trace

    Compared to the last posting this patch converts the tracing mostly to
    the one tracepoint per callsite model that other users of the new
    tracing facility also employ. This allows a very fine-grained control
    of the tracing, a cleaner output of the traces and also enables the
    perf tool to use each tracepoint as a virtual performance counter,
    allowing us to e.g. count how often certain workloads git various
    spots in XFS. Take a look at

    http://lwn.net/Articles/346470/

    for some examples.

    Also the btree tracing isn't included at all yet, as it will require
    additional core tracing features not in mainline yet, I plan to
    deliver it later.

    And the really nice thing about this patch is that it actually removes
    many lines of code while adding this nice functionality:

    fs/xfs/Makefile | 8
    fs/xfs/linux-2.6/xfs_acl.c | 1
    fs/xfs/linux-2.6/xfs_aops.c | 52 -
    fs/xfs/linux-2.6/xfs_aops.h | 2
    fs/xfs/linux-2.6/xfs_buf.c | 117 +--
    fs/xfs/linux-2.6/xfs_buf.h | 33
    fs/xfs/linux-2.6/xfs_fs_subr.c | 3
    fs/xfs/linux-2.6/xfs_ioctl.c | 1
    fs/xfs/linux-2.6/xfs_ioctl32.c | 1
    fs/xfs/linux-2.6/xfs_iops.c | 1
    fs/xfs/linux-2.6/xfs_linux.h | 1
    fs/xfs/linux-2.6/xfs_lrw.c | 87 --
    fs/xfs/linux-2.6/xfs_lrw.h | 45 -
    fs/xfs/linux-2.6/xfs_super.c | 104 ---
    fs/xfs/linux-2.6/xfs_super.h | 7
    fs/xfs/linux-2.6/xfs_sync.c | 1
    fs/xfs/linux-2.6/xfs_trace.c | 75 ++
    fs/xfs/linux-2.6/xfs_trace.h | 1369 +++++++++++++++++++++++++++++++++++++++++
    fs/xfs/linux-2.6/xfs_vnode.h | 4
    fs/xfs/quota/xfs_dquot.c | 110 ---
    fs/xfs/quota/xfs_dquot.h | 21
    fs/xfs/quota/xfs_qm.c | 40 -
    fs/xfs/quota/xfs_qm_syscalls.c | 4
    fs/xfs/support/ktrace.c | 323 ---------
    fs/xfs/support/ktrace.h | 85 --
    fs/xfs/xfs.h | 16
    fs/xfs/xfs_ag.h | 14
    fs/xfs/xfs_alloc.c | 230 +-----
    fs/xfs/xfs_alloc.h | 27
    fs/xfs/xfs_alloc_btree.c | 1
    fs/xfs/xfs_attr.c | 107 ---
    fs/xfs/xfs_attr.h | 10
    fs/xfs/xfs_attr_leaf.c | 14
    fs/xfs/xfs_attr_sf.h | 40 -
    fs/xfs/xfs_bmap.c | 507 +++------------
    fs/xfs/xfs_bmap.h | 49 -
    fs/xfs/xfs_bmap_btree.c | 6
    fs/xfs/xfs_btree.c | 5
    fs/xfs/xfs_btree_trace.h | 17
    fs/xfs/xfs_buf_item.c | 87 --
    fs/xfs/xfs_buf_item.h | 20
    fs/xfs/xfs_da_btree.c | 3
    fs/xfs/xfs_da_btree.h | 7
    fs/xfs/xfs_dfrag.c | 2
    fs/xfs/xfs_dir2.c | 8
    fs/xfs/xfs_dir2_block.c | 20
    fs/xfs/xfs_dir2_leaf.c | 21
    fs/xfs/xfs_dir2_node.c | 27
    fs/xfs/xfs_dir2_sf.c | 26
    fs/xfs/xfs_dir2_trace.c | 216 ------
    fs/xfs/xfs_dir2_trace.h | 72 --
    fs/xfs/xfs_filestream.c | 8
    fs/xfs/xfs_fsops.c | 2
    fs/xfs/xfs_iget.c | 111 ---
    fs/xfs/xfs_inode.c | 67 --
    fs/xfs/xfs_inode.h | 76 --
    fs/xfs/xfs_inode_item.c | 5
    fs/xfs/xfs_iomap.c | 85 --
    fs/xfs/xfs_iomap.h | 8
    fs/xfs/xfs_log.c | 181 +----
    fs/xfs/xfs_log_priv.h | 20
    fs/xfs/xfs_log_recover.c | 1
    fs/xfs/xfs_mount.c | 2
    fs/xfs/xfs_quota.h | 8
    fs/xfs/xfs_rename.c | 1
    fs/xfs/xfs_rtalloc.c | 1
    fs/xfs/xfs_rw.c | 3
    fs/xfs/xfs_trans.h | 47 +
    fs/xfs/xfs_trans_buf.c | 62 -
    fs/xfs/xfs_vnodeops.c | 8
    70 files changed, 2151 insertions(+), 2592 deletions(-)

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Christoph Hellwig
     

07 Feb, 2008

1 commit

  • a8272ce0c   [XFS] Fix up sparse warnings. ... Browse Code »

    These are mostly locking annotations, marking things static, casts where
    needed and declaring stuff in header files.

    SGI-PV: 971186
    SGI-Modid: xfs-linux-melb:xfs-kern:30002a

    Signed-off-by: David Chinner
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Lachlan McIlroy

    David Chinner
     

01 Oct, 2007

1 commit

  • 564256c9e   Revert "[XFS] Avoid replaying inode buffer initialisation log items if on-disk version is newer." ... Browse Code »

    This reverts commit b394e43e995d08821588a22561c6a71a63b4ff27.

    Lachlan McIlroy says:
    It tried to fix an issue where log replay is replaying an inode cluster
    initialisation transaction that should not be replayed because the inode
    cluster on disk is more up to date. Since we don't log file sizes (we
    rely on inode flushing to get them to disk) then we can't just replay
    all the transations in the log and expect the inode to be completely
    restored. We lose file size updates. Unfortunately this fix is causing
    more (serious) problems than it is fixing.

    SGI-PV: 969656
    SGI-Modid: xfs-linux-melb:xfs-kern:29804a

    Signed-off-by: Lachlan McIlroy
    Signed-off-by: Tim Shimmin

    Tim Shimmin
     

18 Sep, 2007

1 commit

10 Feb, 2007

1 commit

02 Nov, 2005

1 commit

21 Jun, 2005

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds