Commit 0191f869 authored May 24, 2010 by Jens Axboe

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>

parent e36f724b

fs/pipe.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1170,7 +1170,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
		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.