[XFS updates] XFS development tree branch, mainline, updated. v2.6.30-rc4-12441-g04c1b29

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The branch, mainline has been updated
  04c1b29 xfs: fix locking in xfs_iget_cache_hit
  78efd1d Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
  a8914f3 xfs: fix spin_is_locked assert on uni-processor builds
  b89d420 xfs: check for dinode realtime flag corruption
  e0c222c use XFS_CORRUPTION_ERROR in xfs_btree_check_sblock
  ddd3a14 xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get
  7b02ecb xfs: switch to NOFS allocation under i_lock in xfs_readlink_bmap
  10746e4 xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_set
  36fae17 xfs: switch to NOFS allocation under i_lock in xfs_buf_associate_memory
  3f52c2f xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result
  73195ed xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make
  f41d7fb xfs: switch to NOFS allocation under i_lock in xfs_da_state_alloc
  ca35dcd xfs: switch to NOFS allocation under i_lock in xfs_getbmap
  0cc6eee xfs: avoid memory allocation under m_peraglock in growfs code
  b36ec04 xfs: fix freeing of inodes not yet added to the inode cache
  54e3462 vfs: fix inode_init_always calling convention
  f5266cb Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
  c8a4051 xfs: bump up nr_to_write in xfs_vm_writepage
  97db39a xfs: reduce bmv_count in xfs_vn_fiemap
  405f557 headers: smp_lock.h redux
  8aa7e84 Fix congestion_wait() sync/async vs read/write confusion
  1cbd20d switch xfs to generic acl caching helpers
  90c699a block: rename CONFIG_LBD to CONFIG_LBDAF
      from  1d89b30cc9be41af87881682ec82e2c107849dbe (commit)

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- Log -----------------------------------------------------------------
commit 04c1b29578233ab87dfce8db5d379eab327e60c6
Author: Christoph Hellwig <hch at infradead.org>
Date:   Sun Aug 16 20:36:34 2009 -0400

    xfs: fix locking in xfs_iget_cache_hit
    
    The locking in xfs_iget_cache_hit currently has numerous problems:
    
     - we clear the reclaim tag without i_flags_lock which protects modifications
       to it
     - we call inode_init_always which can sleep with pag_ici_lock held
       (this is oss.sgi.com BZ #819)
     - we acquire and drop i_flags_lock a lot and thus provide no consistency
       between the various flags we set/clear under it
    
    This patch fixes all that with a major revamp of the locking in the function.
    The new version acquires i_flags_lock early and only drops it once we need to
    call into inode_init_always or before calling xfs_ilock.
    
    This patch fixes a bug seen in the wild where we race modifying the reclaim tag.
    
    Signed-off-by: Christoph Hellwig <hch at lst.de>
    Reviewed-by: Felix Blyakher <felixb at sgi.com>
    Reviewed-by: Eric Sandeen <sandeen at sandeen.net>
    Signed-off-by: Felix Blyakher <felixb at sgi.com>

-----------------------------------------------------------------------

Summary of changes:
 fs/xfs/linux-2.6/kmem.c      |    4 +-
 fs/xfs/linux-2.6/xfs_acl.c   |   73 ++-----------
 fs/xfs/linux-2.6/xfs_aops.c  |    8 ++
 fs/xfs/linux-2.6/xfs_buf.c   |    4 +-
 fs/xfs/linux-2.6/xfs_file.c  |    1 -
 fs/xfs/linux-2.6/xfs_iops.c  |    4 +-
 fs/xfs/linux-2.6/xfs_linux.h |    2 +-
 fs/xfs/linux-2.6/xfs_super.c |    2 +-
 fs/xfs/linux-2.6/xfs_sync.c  |   13 ++-
 fs/xfs/linux-2.6/xfs_sync.h  |    1 +
 fs/xfs/xfs_acl.h             |    4 -
 fs/xfs/xfs_attr.c            |    8 +-
 fs/xfs/xfs_bmap.c            |    2 +-
 fs/xfs/xfs_btree.c           |    4 +-
 fs/xfs/xfs_da_btree.c        |    6 +-
 fs/xfs/xfs_dir2.c            |    2 +-
 fs/xfs/xfs_fsops.c           |   20 +++-
 fs/xfs/xfs_iget.c            |  255 +++++++++++++++++++++---------------------
 fs/xfs/xfs_inode.c           |   10 ++
 fs/xfs/xfs_inode.h           |   22 ----
 fs/xfs/xfs_log.c             |    2 +-
 fs/xfs/xfs_vnodeops.c        |    4 +-
 22 files changed, 207 insertions(+), 244 deletions(-)


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