• Christoph Hellwig's avatar
    xfs: kill xfs_qmops · 7d095257
    Christoph Hellwig authored
    Kill the quota ops function vector and replace it with direct calls or
    stubs in the CONFIG_XFS_QUOTA=n case.
    
    Make sure we check XFS_IS_QUOTA_RUNNING in the right spots.  We can remove
    the number of those checks because the XFS_TRANS_DQ_DIRTY flag can't be set
    otherwise.
    
    This brings us back closer to the way this code worked in IRIX and earlier
    Linux versions, but we keep a lot of the more useful factoring of common
    code.
    
    Eventually we should also kill xfs_qm_bhv.c, but that's left for a later
    patch.
    
    Reduces the size of the source code by about 250 lines and the size of
    XFS module by about 1.5 kilobytes with quotas enabled:
    
       text	   data	    bss	    dec	    hex	filename
     615957	   2960	   3848	 622765	  980ad	fs/xfs/xfs.o
     617231	   3152	   3848	 624231	  98667	fs/xfs/xfs.o.old
    
    Fallout:
    
     - xfs_qm_dqattach is split into xfs_qm_dqattach_locked which expects
       the inode locked and xfs_qm_dqattach which does the locking around it,
       thus removing XFS_QMOPT_ILOCKED.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Reviewed-by: default avatarEric Sandeen <sandeen@sandeen.net>
    7d095257
xfs_mount.h 16.8 KB