From 4a1fc02a02e6565294d060c84d68a9c3343dcbdf Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 21 Dec 2024 08:41:49 +0000 Subject: [PATCH] xfs: disable reflink for zoned file systems 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 --- fs/xfs/xfs_super.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 34b0f5a80412..ceb1a855453e 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1824,6 +1824,13 @@ 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; -- 2.50.1