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[2/3] xfs: match on the global RT inode numbers in xfs_is_metadata_inode

Message ID 172530105339.3324987.3663743222940678218.stgit@frogsfrogsfrogs (mailing list archive)
State Accepted, archived
Headers show
Series [1/3] xfs: validate inumber in xfs_iget | expand

Commit Message

Darrick J. Wong Sept. 2, 2024, 6:23 p.m. UTC 
From: Christoph Hellwig <hch@lst.de>

Match the inode number instead of the inode pointers, as the inode
pointers in the superblock will go away soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
[djwong: port to my tree, make the parameter a const pointer]
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_inode.h |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
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Patch

diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 51defdebef30..1908409968db 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -276,12 +276,13 @@  static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
 	return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
 }
 
-static inline bool xfs_is_metadata_inode(struct xfs_inode *ip)
+static inline bool xfs_is_metadata_inode(const struct xfs_inode *ip)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 
-	return ip == mp->m_rbmip || ip == mp->m_rsumip ||
-		xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
+	return ip->i_ino == mp->m_sb.sb_rbmino ||
+	       ip->i_ino == mp->m_sb.sb_rsumino ||
+	       xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
 }
 
 bool xfs_is_always_cow_inode(struct xfs_inode *ip);