>From bd2b65775a5b187f7c15c2b6d88f47cd24fb9c4e Mon Sep 17 00:00:00 2001 From: Ciju Rajan K Date: Fri, 20 Aug 2010 12:02:45 +0530 Subject: 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 --- block/blk-cgroup.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) 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) -- 1.6.0.6