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authorJens Axboe <jens.axboe@oracle.com>2010-03-19 08:05:10 +0100
committerJens Axboe <jens.axboe@oracle.com>2010-03-19 08:05:10 +0100
commitb4b7a4ef097f288f724420b473dbf92a89c0ab7e (patch)
tree23ad8101e3e77c32a8d1e1b95a9c1cd7f7a475b7 /block/blk-cgroup.h
parente9ce335df51ff782035a15c261a3c0c9892a1767 (diff)
parenta3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff)
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Merge branch 'master' into for-linus
Conflicts: block/Kconfig Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-cgroup.h')
-rw-r--r--block/blk-cgroup.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 84bf745..8ccc204 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -15,7 +15,13 @@
#include <linux/cgroup.h>
-#ifdef CONFIG_BLK_CGROUP
+#if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE)
+
+#ifndef CONFIG_BLK_CGROUP
+/* When blk-cgroup is a module, its subsys_id isn't a compile-time constant */
+extern struct cgroup_subsys blkio_subsys;
+#define blkio_subsys_id blkio_subsys.subsys_id
+#endif
struct blkio_cgroup {
struct cgroup_subsys_state css;
@@ -91,7 +97,7 @@ static inline void blkiocg_update_blkio_group_dequeue_stats(
struct blkio_group *blkg, unsigned long dequeue) {}
#endif
-#ifdef CONFIG_BLK_CGROUP
+#if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE)
extern struct blkio_cgroup blkio_root_cgroup;
extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup);
extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,