[PATCH 1/2] ceph: only set CEPH_I_SEC_INITED if we got a MAC label

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__ceph_getxattr will set the CEPH_I_SEC_INITED flag whenever it gets
any xattr that starts with "security.". We only want to set that flag
when fetching the MAC label for the currently-active LSM, however.

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/ceph/xattr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 5c608caf0190..410eaf1ba211 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -892,7 +892,8 @@ ssize_t __ceph_getxattr(struct inode *inode, const char *name, void *value,
 	memcpy(value, xattr->val, xattr->val_len);
 
 	if (current->journal_info &&
-	    !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN))
+	    !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) &&
+	    security_ismaclabel(name + XATTR_SECURITY_PREFIX_LEN))
 		ci->i_ceph_flags |= CEPH_I_SEC_INITED;
 out:
 	spin_unlock(&ci->i_ceph_lock);
-- 
2.21.0




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