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Commit b7269dfc authored by Paul Menage's avatar Paul Menage Committed by Linus Torvalds
Browse files

CGroup API files: strip all trailing whitespace in cgroup_write_u64 



This removes the need for people to remember to pass the -n flag to echo when
writing values to cgroup control files.

Signed-off-by: default avatarPaul Menage <menage@google.com>
Cc: "Li Zefan" <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "YAMAMOTO Takashi" <yamamoto@valinux.co.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2c3daa72

kernel/cgroup.c

+1 −4
Original line number Diff line number Diff line
@@ -1329,10 +1329,7 @@ static ssize_t cgroup_write_u64(struct cgroup *cgrp, struct cftype *cft, 
		return -EFAULT;



	buffer[nbytes] = 0;     /* nul-terminate */



	/* strip newline if necessary */

	if (nbytes && (buffer[nbytes-1] == '\n'))

		buffer[nbytes-1] = 0;

	strstrip(buffer);

	val = simple_strtoull(buffer, &end, 0);

	if (*end)

		return -EINVAL;