pipe: F_SETPIPE_SZ should return -EPERM for non-root

If the passed in size is larger than what has been set as the system wide limit and the user is not root, we want to return permission denied (not invalid value). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

pipe: F_SETPIPE_SZ should return -EPERM for non-root
If the passed in size is larger than what has been set as the system wide limit and the user is not root, we want to return permission denied (not invalid value). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe
1 parent e36f724b4a
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
fs/pipe.c
@@ -1170,7 +1170,7 @@
 	switch (cmd) {
 	case F_SETPIPE_SZ:
 		if (!capable(CAP_SYS_ADMIN) && arg > pipe_max_pages)
-			return -EINVAL;
+			return -EPERM;
 		/*
 		 * The pipe needs to be at least 2 pages large to
 		 * guarantee POSIX behaviour.
...	...	@@ -1170,7 +1170,7 @@
1170	1170	switch (cmd) {
1171	1171	case F_SETPIPE_SZ:
1172	1172	if (!capable(CAP_SYS_ADMIN) && arg > pipe_max_pages)
1173		- return -EINVAL;
	1173	+ return -EPERM;
1174	1174	/*
1175	1175	* The pipe needs to be at least 2 pages large to
1176	1176	* guarantee POSIX behaviour.