X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=fs%2Fattr.c;h=29e38a1f7f77a15100f1d20b3e51507470273633;hb=63ca5f1d17a4eecaec3149982223fe89e55a568f;hp=0da90951d2776f827a905337938399ada79e8e69;hpb=b478b2baa37ac99fc04a30809c780dd5dfd43595;p=karo-tx-linux.git

diff --git a/fs/attr.c b/fs/attr.c
index 0da90951d277..29e38a1f7f77 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -171,6 +171,8 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
 	struct timespec now;
 	unsigned int ia_valid = attr->ia_valid;
 
+	WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex));
+
 	if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_TIMES_SET)) {
 		if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
 			return -EPERM;
@@ -250,5 +252,4 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
 
 	return error;
 }
-
 EXPORT_SYMBOL(notify_change);