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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:35 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-05 13:55:40 -0700
commit4862cfe825c0087c14452b362e708a35da675f5e (patch)
treeedb9872e9374107b04b18efd21deab767b920e92 /fs/xfs/libxfs/xfs_bmap.h
parentef4736678fc3ea426968bc82f907798ed5f51e85 (diff)
downloadlinux-4862cfe825c0087c14452b362e708a35da675f5e.tar.gz
xfs: support removing extents from CoW fork
Create a helper method to remove extents from the CoW fork without
any of the side effects (rmapbt/bmbt updates) of the regular extent
deletion routine.  We'll eventually use this to clear out the CoW fork
during ioend processing.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_bmap.h')
-rw-r--r--fs/xfs/libxfs/xfs_bmap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index c6fd52f40855..f97db7132564 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -221,6 +221,7 @@ int	xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip,
 		xfs_fileoff_t bno, xfs_filblks_t len, int flags,
 		xfs_extnum_t nexts, xfs_fsblock_t *firstblock,
 		struct xfs_defer_ops *dfops, int *done);
+int	xfs_bunmapi_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *del);
 int	xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx,
 		xfs_extnum_t num);
 uint	xfs_default_attroffset(struct xfs_inode *ip);