From: Darrick J. Wong <djwong@xxxxxxxxxx>
Don't error out on CoW staging extent records when realtime reflink is
enabled.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_rmap.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index 43108a195004c..501427d2f38cb 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -276,6 +276,7 @@ xfs_rtrmap_check_irec(
bool is_unwritten;
bool is_bmbt;
bool is_attr;
+ bool is_cow;
if (irec->rm_blockcount == 0)
return __this_address;
@@ -287,6 +288,12 @@ xfs_rtrmap_check_irec(
return __this_address;
if (irec->rm_offset != 0)
return __this_address;
+ } else if (irec->rm_owner == XFS_RMAP_OWN_COW) {
+ if (!xfs_has_rtreflink(mp))
+ return __this_address;
+ if (!xfs_verify_rgbext(rtg, irec->rm_startblock,
+ irec->rm_blockcount))
+ return __this_address;
} else {
if (!xfs_verify_rgbext(rtg, irec->rm_startblock,
irec->rm_blockcount))
@@ -303,8 +310,10 @@ xfs_rtrmap_check_irec(
is_bmbt = irec->rm_flags & XFS_RMAP_BMBT_BLOCK;
is_attr = irec->rm_flags & XFS_RMAP_ATTR_FORK;
is_unwritten = irec->rm_flags & XFS_RMAP_UNWRITTEN;
+ is_cow = xfs_has_rtreflink(mp) &&
+ irec->rm_owner == XFS_RMAP_OWN_COW;
- if (!is_inode && irec->rm_owner != XFS_RMAP_OWN_FS)
+ if (!is_inode && !is_cow && irec->rm_owner != XFS_RMAP_OWN_FS)
return __this_address;
if (!is_inode && irec->rm_offset != 0)
@@ -316,6 +325,9 @@ xfs_rtrmap_check_irec(
if (is_unwritten && !is_inode)
return __this_address;
+ if (is_unwritten && is_cow)
+ return __this_address;
+
/* Check for a valid fork offset, if applicable. */
if (is_inode &&
!xfs_verify_fileext(mp, irec->rm_offset, irec->rm_blockcount))
