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| author | Christian Brauner <brauner@kernel.org> | 2023-02-01 14:15:01 +0100 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-03-06 09:59:20 +0100 |
| commit | e499214ce3ef50c50522719e753a1ffc928c2ec1 (patch) | |
| tree | 63f403e964ca4b9e80eacad844177b416306d9a0 /fs/posix_acl.c | |
| parent | a1fbb607340d49f208e90cc0d7bdfff2141cce8d (diff) | |
| download | linux-stable-e499214ce3ef50c50522719e753a1ffc928c2ec1.tar.gz linux-stable-e499214ce3ef50c50522719e753a1ffc928c2ec1.tar.bz2 linux-stable-e499214ce3ef50c50522719e753a1ffc928c2ec1.zip | |
acl: don't depend on IOP_XATTR
All codepaths that don't want to implement POSIX ACLs should simply not
implement the associated inode operations instead of relying on
IOP_XATTR. That's the case for all filesystems today.
For vfs_listxattr() all filesystems that explicitly turn of xattrs for a
given inode all set inode->i_op to a dedicated set of inode operations
that doesn't implement ->listxattr(). We can remove the dependency of
vfs_listxattr() on IOP_XATTR.
Removing this dependency will allow us to decouple POSIX ACLs from
IOP_XATTR and they can still be listed even if no other xattr handlers
are implemented. Otherwise we would have to implement elaborate schemes
to raise IOP_XATTR even if sb->s_xattr is set to NULL.
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'fs/posix_acl.c')
| -rw-r--r-- | fs/posix_acl.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/fs/posix_acl.c b/fs/posix_acl.c index e262c428f869..7fa1b738bbab 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -1131,12 +1131,10 @@ retry_deleg: if (error) goto out_inode_unlock; - if (inode->i_opflags & IOP_XATTR) + if (likely(!is_bad_inode(inode))) error = set_posix_acl(idmap, dentry, acl_type, kacl); - else if (unlikely(is_bad_inode(inode))) - error = -EIO; else - error = -EOPNOTSUPP; + error = -EIO; if (!error) { fsnotify_xattr(dentry); evm_inode_post_set_acl(dentry, acl_name, kacl); @@ -1241,12 +1239,10 @@ retry_deleg: if (error) goto out_inode_unlock; - if (inode->i_opflags & IOP_XATTR) + if (likely(!is_bad_inode(inode))) error = set_posix_acl(idmap, dentry, acl_type, NULL); - else if (unlikely(is_bad_inode(inode))) - error = -EIO; else - error = -EOPNOTSUPP; + error = -EIO; if (!error) { fsnotify_xattr(dentry); evm_inode_post_remove_acl(idmap, dentry, acl_name); |