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authorDarrick J. Wong <djwong@kernel.org>2022-07-09 20:56:06 +0300
committerDarrick J. Wong <djwong@kernel.org>2022-07-10 01:17:21 +0300
commite45d7cb2356e6b59fe64da28324025cc6fcd3fbd (patch)
tree19d84f0fc674b316e04ed33854262623c42fa4cc /fs/xfs/xfs_inode.h
parent2ed5b09b3e8fc274ae8fecd6ab7c5106a364bed1 (diff)
downloadlinux-e45d7cb2356e6b59fe64da28324025cc6fcd3fbd.tar.xz
xfs: use XFS_IFORK_Q to determine the presence of an xattr fork
Modify xfs_ifork_ptr to return a NULL pointer if the caller asks for the attribute fork but i_forkoff is zero. This eliminates the ambiguity between i_forkoff and i_af.if_present, which should make it easier to understand the lifetime of attr forks. While we're at it, remove the if_present checks around calls to xfs_idestroy_fork and xfs_ifork_zap_attr since they can both handle attr forks that have already been torn down. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_inode.h')
-rw-r--r--fs/xfs/xfs_inode.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 045bad62ac25..9bda01311c2f 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -86,7 +86,7 @@ xfs_ifork_ptr(
case XFS_DATA_FORK:
return &ip->i_df;
case XFS_ATTR_FORK:
- if (!ip->i_af.if_present)
+ if (!XFS_IFORK_Q(ip))
return NULL;
return &ip->i_af;
case XFS_COW_FORK: