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authorSteven Rostedt <srostedt@redhat.com>2010-05-21 11:49:57 -0400
committerSteven Rostedt <rostedt@goodmis.org>2010-05-21 11:49:57 -0400
commitff5f149b6aec8edbfa3698721667acd043009a33 (patch)
treed052553eb296dfee3f01b1cb2b717cb7ccf3127a /block/blk-cgroup.c
parentf0218b3e9974f06014b61be8987159f4a20e011e (diff)
parent580d607cd666dfabfc1c7b0fb08c8ac690c7c87f (diff)
downloadop-kernel-dev-ff5f149b6aec8edbfa3698721667acd043009a33.zip
op-kernel-dev-ff5f149b6aec8edbfa3698721667acd043009a33.tar.gz
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-7
Conflicts: include/linux/ftrace_event.h include/trace/ftrace.h kernel/trace/trace_event_perf.c kernel/trace/trace_kprobe.c kernel/trace/trace_syscalls.c Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 5fe03de..2cc682b 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -286,16 +286,16 @@ done:
static struct cgroup_subsys_state *
blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup)
{
- struct blkio_cgroup *blkcg, *parent_blkcg;
+ struct blkio_cgroup *blkcg;
+ struct cgroup *parent = cgroup->parent;
- if (!cgroup->parent) {
+ if (!parent) {
blkcg = &blkio_root_cgroup;
goto done;
}
/* Currently we do not support hierarchy deeper than two level (0,1) */
- parent_blkcg = cgroup_to_blkio_cgroup(cgroup->parent);
- if (css_depth(&parent_blkcg->css) > 0)
+ if (parent != cgroup->top_cgroup)
return ERR_PTR(-EINVAL);
blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
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