pipe: change the privilege required for growing a pipe beyond system max

Change it to CAP_SYS_RESOURCE, as that more accurately models what
we want to control.

Suggested-by: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index 369a0245aab6..f98fae3e36b0 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1178,7 +1178,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
                 nr_pages = (arg + PAGE_SIZE - 1) >> PAGE_SHIFT;
                 nr_pages = roundup_pow_of_two(nr_pages);
 
-                if (!capable(CAP_SYS_ADMIN) && nr_pages > pipe_max_pages) {
+                if (!capable(CAP_SYS_RESOURCE) && nr_pages > pipe_max_pages) {
                         ret = -EPERM;
                         goto out;
                 } else if (nr_pages < 1) {