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authorIngo Molnar <mingo@elte.hu>2010-02-25 11:40:22 +0300
committerIngo Molnar <mingo@elte.hu>2010-02-25 11:40:26 +0300
commit996de8c6fe95c5a9fc524241cc8f142ef0605d3d (patch)
tree0f637ab0d80d6d7e213707ac2d8c1cc16b69523c /block/blk-cgroup.c
parent017c426138122c8e9b9f5057fbd0567c37b35247 (diff)
parent60b341b778cc2929df16c0a504c91621b3c6a4ad (diff)
downloadlinux-996de8c6fe95c5a9fc524241cc8f142ef0605d3d.tar.xz
Merge commit 'v2.6.33' into core/rcu
Merge reason: Update from -rc4 to -final. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 1fa2654db0a6..e7dbbaf5fb3e 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -147,16 +147,16 @@ blkiocg_weight_write(struct cgroup *cgroup, struct cftype *cftype, u64 val)
return -EINVAL;
blkcg = cgroup_to_blkio_cgroup(cgroup);
+ spin_lock(&blkio_list_lock);
spin_lock_irq(&blkcg->lock);
blkcg->weight = (unsigned int)val;
hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
- spin_lock(&blkio_list_lock);
list_for_each_entry(blkiop, &blkio_list, list)
blkiop->ops.blkio_update_group_weight_fn(blkg,
blkcg->weight);
- spin_unlock(&blkio_list_lock);
}
spin_unlock_irq(&blkcg->lock);
+ spin_unlock(&blkio_list_lock);
return 0;
}