[PATCH 093/119] xfs: swap inode reflink flags when swapping inode extents
From: Darrick J. Wong <hidden>
Date: 2016-06-17 01:27:59
Also in:
linux-fsdevel
Subsystem:
filesystems (vfs and infrastructure), the rest, xfs filesystem · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Carlos Maiolino
When we're swapping the extents of two inodes, be sure to swap the reflink inode flag too. Signed-off-by: Darrick J. Wong <redacted> --- fs/xfs/xfs_bmap_util.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 3d71a17..a5f5515 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c@@ -1735,6 +1735,8 @@ 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))
@@ -1948,6 +1950,19 @@ 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);
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