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Commit f0bc4d13 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

xfs: swap inode reflink flags when swapping inode extents 



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

Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
parent f86f4037

fs/xfs/xfs_bmap_util.c

+15 −0
Original line number Diff line number Diff line
@@ -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);