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authorCiju Rajan K <ciju@linux.vnet.ibm.com>2010-08-23 04:56:30 -0400
committerJens Axboe <jaxboe@fusionio.com>2010-08-23 04:56:30 -0400
commit96aa1b419d47286db446f292cf898bb1a8b27f24 (patch)
tree1b7a7c5c8131374396df69fd52d02de5de06e978 /block
parent9ee47476d6734c9deb9ae9ab05d963302f6b6150 (diff)
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 <ciju@linux.vnet.ibm.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-cgroup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index a6809645d212..2fef1ef931a0 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -966,7 +966,7 @@ blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup)
966 966
967 /* Currently we do not support hierarchy deeper than two level (0,1) */ 967 /* Currently we do not support hierarchy deeper than two level (0,1) */
968 if (parent != cgroup->top_cgroup) 968 if (parent != cgroup->top_cgroup)
969 return ERR_PTR(-EINVAL); 969 return ERR_PTR(-EPERM);
970 970
971 blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL); 971 blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
972 if (!blkcg) 972 if (!blkcg)