[XFS updates] XFS development tree branch, master, updated. v2.6.33-rc4-46-g388f1f0

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The branch, master has been updated
  388f1f0 xfs: turn off sign warnings
  cbe132a xfs: don't hold onto reserved blocks on remount,ro
      from  9b00f30762fe9f914eb6e03057a616ed63a4e8ca (commit)

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- Log -----------------------------------------------------------------
commit 388f1f0c346b533b06d8bc792f7204ebc3e4b7da
Author: Dave Chinner <david at fromorbit.com>
Date:   Tue Jan 26 15:10:15 2010 +1100

    xfs: turn off sign warnings
    
    Because they cause warnings in static inline functions conditionally
    compiled into XFS from the VFS (e.g. fsnotify).
    
    Signed-off-by: Dave Chinner <david at fromorbit.com>
    Reviewed-by: Christoph Hellwig <hch at lst.de>

commit cbe132a8bdcff0f9afd9060948fb50597c7400b8
Author: Dave Chinner <david at fromorbit.com>
Date:   Tue Jan 26 15:08:49 2010 +1100

    xfs: don't hold onto reserved blocks on remount,ro
    
    If we hold onto reserved blocks when doing a remount,ro we end
    up writing the blocks used count to disk that includes the reserved
    blocks. Reserved blocks are not actually used, so this results in
    the values in the superblock being incorrect.
    
    Hence if we run xfs_check or xfs_repair -n while the filesystem is
    mounted remount,ro we end up with an inconsistent filesystem being
    reported. Also, running xfs_copy on the remount,ro filesystem will
    result in an inconsistent image being generated.
    
    To fix this, unreserve the blocks when doing the remount,ro, and
    reserved them again on remount,rw. This way a remount,ro filesystem
    will appear consistent on disk to all utilities.
    
    Signed-off-by: Dave Chinner <david at fromorbit.com>
    Reviewed-by: Christoph Hellwig <hch at lst.de>

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

Summary of changes:
 fs/xfs/Makefile              |    2 +-
 fs/xfs/linux-2.6/xfs_super.c |   28 ++++++++++++++++++++++++++++
 fs/xfs/xfs_mount.h           |    1 +
 3 files changed, 30 insertions(+), 1 deletions(-)


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