Unverified Commit d06c26f1 authored by Christian Brauner's avatar Christian Brauner
Browse files

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 <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJames Morris <jamorris@linux.microsoft.com>
Signed-off-by: default avatarChristian Brauner <christian.brauner@ubuntu.com>
parent 7c02cf73

fs/utimes.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {