xfs: update ctime and mtime on clone destinatation inodes

We're changing both metadata and data, so we need to update the
timestamps for clone operations.  Dedupe on the other hand does
not change file data, and only changes invisible metadata so the
timestamps should not be updated.

This follows existing btrfs behavior.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: remove redundant is_dedupe test]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 1f61877..2f3d2d5 100644 (file)
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -954,13 +954,14 @@ STATIC int
 xfs_reflink_update_dest(
        struct xfs_inode        *dest,
        xfs_off_t               newlen,
-       xfs_extlen_t            cowextsize)
+       xfs_extlen_t            cowextsize,
+       bool                    is_dedupe)
 {
        struct xfs_mount        *mp = dest->i_mount;
        struct xfs_trans        *tp;
        int                     error;
 
-       if (newlen <= i_size_read(VFS_I(dest)) && cowextsize == 0)
+       if (is_dedupe && newlen <= i_size_read(VFS_I(dest)) && cowextsize == 0)
                return 0;
 
        error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0, 0, 0, &tp);
@@ -981,6 +982,10 @@ xfs_reflink_update_dest(
                dest->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
        }
 
+       if (!is_dedupe) {
+               xfs_trans_ichgtime(tp, dest,
+                                  XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+       }
        xfs_trans_log_inode(tp, dest, XFS_ILOG_CORE);
 
        error = xfs_trans_commit(tp);
@@ -1294,7 +1299,8 @@ xfs_reflink_remap_range(
            !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE))
                cowextsize = src->i_d.di_cowextsize;
 
-       ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize);
+       ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize,
+                       is_dedupe);
 
 out_unlock:
        xfs_iunlock(src, XFS_MMAPLOCK_EXCL);