xfs_repair: allow CoW staging extents in the realtime rmap records

Don't flag the rt rmap btree as having errors if there are CoW staging
extent records in it and the filesystem supports.  As far as reporting
leftover staging extents, we'll report them when we scan the rt refcount
btree, in a future patch.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/repair/scan.c b/repair/scan.c
index 8bc2dc80beae105c9f52a0ef65a0b0ec7d09cf13..3d23273fa77b946666b8a877f130d887a04d3fe0 100644 (file)
--- a/repair/scan.c
+++ b/repair/scan.c
@@ -1416,9 +1416,20 @@ _("invalid length %llu in record %u of %s\n"),
                        continue;
                }
 
-               /* We only store file data and superblocks in the rtrmap. */
-               if (XFS_RMAP_NON_INODE_OWNER(owner) &&
-                   owner != XFS_RMAP_OWN_FS) {
+               /*
+                * We only store file data, COW data, and superblocks in the
+                * rtrmap.
+                */
+               if (owner == XFS_RMAP_OWN_COW) {
+                       if (!xfs_has_reflink(mp)) {
+                               do_warn(
+_("invalid CoW staging extent in record %u of %s\n"),
+                                               i, name);
+                               suspect++;
+                               continue;
+                       }
+               } else if (XFS_RMAP_NON_INODE_OWNER(owner) &&
+                          owner != XFS_RMAP_OWN_FS) {
                        do_warn(
 _("invalid owner %lld in record %u of %s\n"),
                                (long long int)owner, i, name);