diff mbox series

[35/44] xfs: disable reflink for zoned file systems

Message ID 20250226185723.518867-36-hch@lst.de (mailing list archive)
State New
Headers show
Series [01/44] xfs: reflow xfs_dec_freecounter | expand

Commit Message

Christoph Hellwig Feb. 26, 2025, 6:57 p.m. UTC 
While the zoned on-disk format supports reflinks, the GC code currently
always unshares reflinks when moving blocks to new zones, thus making the
feature unusuable.  Disable reflinks until the GC code is refcount aware.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
---
 fs/xfs/xfs_super.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index b6426f5c8b51..4ea7150692dd 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1829,6 +1829,13 @@  xfs_fs_fill_super(
 			goto out_filestream_unmount;
 		}
 
+		if (xfs_has_zoned(mp)) {
+			xfs_alert(mp,
+	"reflink not compatible with zoned RT device!");
+			error = -EINVAL;
+			goto out_filestream_unmount;
+		}
+
 		if (xfs_globals.always_cow) {
 			xfs_info(mp, "using DEBUG-only always_cow mode.");
 			mp->m_always_cow = true;