[PATCH 16/43] xfs: update rmap to allow cow staging extents in the rt rmap

Darrick J. Wong
2024-12-13T01:14:25Z

From: Darrick J. Wong <djwong@kernel.org>

Don't error out on CoW staging extent records when realtime reflink is
enabled.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
fs/xfs/libxfs/xfs_rmap.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index f8415fd96cc2aa..3cdf50563fecb9 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -285,6 +285,13 @@ xfs_rtrmap_check_meta_irec(
if (irec->rm_blockcount != mp->m_sb.sb_rextsize)
return __this_address;
return NULL;
+ case 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;
+ return NULL;
default:
return __this_address;
}