From: Ciju Rajan K Date: Mon, 23 Aug 2010 08:56:30 +0000 (+0200) Subject: blkio: Fix return code for mkdir calls X-Git-Tag: v3.12-rc1~8736^2~18 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96aa1b419d47286db446f292cf898bb1a8b27f24;p=kernel%2Fkernel-generic.git blkio: Fix return code for mkdir calls If the cgroup hierarchy for blkio control groups is deeper than two levels, kernel should not allow the creation of further levels. mkdir system call does not except EINVAL as a return value. This patch replaces EINVAL with more appropriate EPERM Signed-off-by: Ciju Rajan K Reviewed-by: KAMEZAWA Hiroyuki Signed-off-by: Jens Axboe --- diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index a680964..2fef1ef 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -966,7 +966,7 @@ blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup) /* Currently we do not support hierarchy deeper than two level (0,1) */ if (parent != cgroup->top_cgroup) - return ERR_PTR(-EINVAL); + return ERR_PTR(-EPERM); blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL); if (!blkcg)