From d06c26f196dd5b196dfa5ff9703cf6c1ce921b9d Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Thu, 21 Jan 2021 14:19:37 +0100 Subject: [PATCH] utimes: handle idmapped mounts Enable the vfs_utimes() helper to handle idmapped mounts by passing down the mount's user namespace. If the initial user namespace is passed nothing changes so non-idmapped mounts will see identical behavior as before. Link: https://lore.kernel.org/r/20210121131959.646623-19-christian.brauner@ubuntu.com Cc: Christoph Hellwig Cc: David Howells Cc: Al Viro Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig Reviewed-by: James Morris Signed-off-by: Christian Brauner --- fs/utimes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/utimes.c b/fs/utimes.c index 4572b91ddb91..39f356017635 100644 --- a/fs/utimes.c +++ b/fs/utimes.c @@ -62,7 +62,7 @@ int vfs_utimes(const struct path *path, struct timespec64 *times) } retry_deleg: inode_lock(inode); - error = notify_change(&init_user_ns, path->dentry, &newattrs, + error = notify_change(mnt_user_ns(path->mnt), path->dentry, &newattrs, &delegated_inode); inode_unlock(inode); if (delegated_inode) {