[XFS updates] XFS development tree branch, master, updated. v3.7-rc1-21-gc99abb8

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The branch, master has been updated
  cd856db xfs: Update inode alloc comments
  531c3bd xfs: silence uninitialised f.file warning.
  1375cb6 xfs: growfs: don't read garbage for new secondary superblocks
      from  e04426b9202bccd4cfcbc70b2fa2aeca1c86d8f5 (commit)

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- Log -----------------------------------------------------------------
commit cd856db69c88db438215244571957d812bdc6813
Author: Carlos Maiolino <cmaiolino at redhat.com>
Date:   Sat Oct 20 11:08:19 2012 -0300

    xfs: Update inode alloc comments
    
    I found some out of date comments while studying the inode allocation
    code, so I believe it's worth to have these comments updated.
    
    It basically rewrites the comment regarding to "call_again" variable,
    which is not used anymore, but instead, callers of xfs_ialloc() decides
    if it needs to be called again relying only if ialloc_context is NULL or
    not.
    
    Also did some small changes in another comment that I thought to be
    pertinent to the current behaviour of these functions and some alignment
    on both comments.
    
    Signed-off-by: Carlos Maiolino <cmaiolino at redhat.com>
    Reviewed-by: Christoph Hellwig <hch at lst.de>
    Signed-off-by: Ben Myers <bpm at sgi.com>

commit 531c3bdc8662e1a83f8ec80dc3346b1284877c0a
Author: Dave Chinner <dchinner at redhat.com>
Date:   Thu Oct 25 17:22:30 2012 +1100

    xfs: silence uninitialised f.file warning.
    
    Uninitialised variable build warning introduced by 2903ff0 ("switch
    simple cases of fget_light to fdget"), gcc is not smart enough to
    work out that the variable is not used uninitialised, and the commit
    removed the initialisation at declaration that the old variable had.
    
    Signed-off-by: Dave Chinner <dchinner at redhat.com>
    Reviewed-by: Christoph Hellwig <hch at lst.de>
    Reviewed-by: Mark Tinguely <tinguely at sgi.com>
    Signed-off-by: Ben Myers <bpm at sgi.com>

commit 1375cb65e87b327a8dd4f920c3e3d837fb40e9c2
Author: Dave Chinner <dchinner at redhat.com>
Date:   Tue Oct 9 14:50:52 2012 +1100

    xfs: growfs: don't read garbage for new secondary superblocks
    
    When updating new secondary superblocks in a growfs operation, the
    superblock buffer is read from the newly grown region of the
    underlying device. This is not guaranteed to be zero, so violates
    the underlying assumption that the unused parts of superblocks are
    zero filled. Get a new buffer for these secondary superblocks to
    ensure that the unused regions are zero filled correctly.
    
    Signed-off-by: Dave Chinner <dchinner at redhat.com>
    Reviewed-by: Carlos Maiolino <cmaiolino at redhat.com>
    Signed-off-by: Ben Myers <bpm at sgi.com>

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

Summary of changes:
 fs/xfs/xfs_fsops.c  |   21 +++++++++++++++++++--
 fs/xfs/xfs_ialloc.c |    6 +++---
 fs/xfs/xfs_inode.c  |   18 +++++++++---------
 fs/xfs/xfs_ioctl.c  |    2 +-
 4 files changed, 32 insertions(+), 15 deletions(-)


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