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xfs: swap inode reflink flags when swapping inode extents

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When we're swapping the extents of two inodes, be sure to swap the
reflink inode flag too.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2016-10-03 09:11:42 -07:00
parent f86f403794
commit f0bc4d134b
1 changed files with 15 additions and 0 deletions
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15
fs/xfs/xfs_bmap_util.c
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@ -1660,6 +1660,8 @@ xfs_swap_extents(
int taforkblks = 0;
__uint64_t tmp;
int lock_flags;
struct xfs_ifork *cowfp;
__uint64_t f;
/* XXX: we can't do this with rmap, will fix later */
if (xfs_sb_version_hasrmapbt(&mp->m_sb))
@ -1873,6 +1875,19 @@ xfs_swap_extents(
break;
}
/* Do we have to swap reflink flags? */
if ((ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK) ^
(tip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK)) {
f = ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
ip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
ip->i_d.di_flags2 |= tip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
tip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
tip->i_d.di_flags2 |= f & XFS_DIFLAG2_REFLINK;
cowfp = ip->i_cowfp;
ip->i_cowfp = tip->i_cowfp;
tip->i_cowfp = cowfp;
}
xfs_trans_log_inode(tp, ip, src_log_flags);
xfs_trans_log_inode(tp, tip, target_log_flags);