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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 09:11:43 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-05 16:26:26 -0700 |
| commit | 98cc2db5b8b2c9f38aebf54a7b03657406b6de26 (patch) | |
| tree | 2cac01aab4083ea3e9c3dae5ee7665a16e923190 /fs/xfs/xfs_reflink.h | |
| parent | f0bc4d134b46607967bda1205ce3226a1bd95f42 (diff) | |
| download | lwn-98cc2db5b8b2c9f38aebf54a7b03657406b6de26.tar.gz lwn-98cc2db5b8b2c9f38aebf54a7b03657406b6de26.zip | |
xfs: unshare a range of blocks via fallocate
Unshare all shared extents if the user calls fallocate with the new
unshare mode flag set, so that we can guarantee that a subsequent
write will not ENOSPC.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
[hch: pass inode instead of file to xfs_reflink_dirty_range,
use iomap infrastructure for copy up]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_reflink.h')
| -rw-r--r-- | fs/xfs/xfs_reflink.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h index df82b2049187..bade5a61f3b0 100644 --- a/fs/xfs/xfs_reflink.h +++ b/fs/xfs/xfs_reflink.h @@ -48,5 +48,9 @@ extern int xfs_reflink_recover_cow(struct xfs_mount *mp); extern int xfs_reflink_remap_range(struct xfs_inode *src, xfs_off_t srcoff, struct xfs_inode *dest, xfs_off_t destoff, xfs_off_t len, unsigned int flags); +extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, + struct xfs_trans **tpp); +extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, + xfs_off_t len); #endif /* __XFS_REFLINK_H */ |