[PATCH 6.6 CANDIDATE 05/22] xfs: require XFS_SB_FEAT_INCOMPAT_LOG_XATTRS for attr log intent item recovery

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From: "Darrick J. Wong" <djwong@xxxxxxxxxx>

commit 8ef1d96a985e4dc07ffbd71bd7fc5604a80cc644 upstream.

The XFS_SB_FEAT_INCOMPAT_LOG_XATTRS feature bit protects a filesystem
from old kernels that do not know how to recover extended attribute log
intent items.  Make this check mandatory instead of a debugging assert.

Fixes: fd920008784ea ("xfs: Set up infrastructure for log attribute replay")
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Catherine Hoang <catherine.hoang@xxxxxxxxxx>
---
 fs/xfs/xfs_attr_item.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c
index 82775e9537df..ebf656aaf301 100644
--- a/fs/xfs/xfs_attr_item.c
+++ b/fs/xfs/xfs_attr_item.c
@@ -510,6 +510,9 @@ xfs_attri_validate(
 	unsigned int			op = attrp->alfi_op_flags &
 					     XFS_ATTRI_OP_FLAGS_TYPE_MASK;
 
+	if (!xfs_sb_version_haslogxattrs(&mp->m_sb))
+		return false;
+
 	if (attrp->__pad != 0)
 		return false;
 
@@ -602,8 +605,6 @@ xfs_attri_item_recover(
 	args->op_flags = XFS_DA_OP_RECOVERY | XFS_DA_OP_OKNOENT |
 			 XFS_DA_OP_LOGGED;
 
-	ASSERT(xfs_sb_version_haslogxattrs(&mp->m_sb));
-
 	switch (attr->xattri_op_flags) {
 	case XFS_ATTRI_OP_FLAGS_SET:
 	case XFS_ATTRI_OP_FLAGS_REPLACE:
-- 
2.39.3





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