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authorTejun Heo <tj@kernel.org>2011-10-19 14:31:18 +0200
committerJens Axboe <axboe@kernel.dk>2011-10-19 14:31:18 +0200
commitbc9fcbf9cb8ec76d340da16fbf48a9a316e14c52 (patch)
tree89376b8811a0d440328dc4f31ef062c811db1cc1 /block
parentece84241b93c4693bfe0a8ec9a043a16d216d0cd (diff)
downloadlinux-stericsson-bc9fcbf9cb8ec76d340da16fbf48a9a316e14c52.tar.gz
block: move blk_throtl prototypes to block/blk.h
blk_throtl interface is block internal and there's no reason to have them in linux/blkdev.h. Move them to block/blk.h. This patch doesn't introduce any functional change. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-throttle.c1
-rw-r--r--block/blk.h15
2 files changed, 15 insertions, 1 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index a19f58c6fc3a..f3f495ea4eeb 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -10,6 +10,7 @@
#include <linux/bio.h>
#include <linux/blktrace_api.h>
#include "blk-cgroup.h"
+#include "blk.h"
/* Max dispatch from a group in 1 round */
static int throtl_grp_quantum = 8;
diff --git a/block/blk.h b/block/blk.h
index 20b900a377c9..da247ba2aeaf 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -188,4 +188,17 @@ static inline int blk_do_io_stat(struct request *rq)
(rq->cmd_flags & REQ_DISCARD));
}
-#endif
+#ifdef CONFIG_BLK_DEV_THROTTLING
+extern int blk_throtl_bio(struct request_queue *q, struct bio **bio);
+extern int blk_throtl_init(struct request_queue *q);
+extern void blk_throtl_exit(struct request_queue *q);
+#else /* CONFIG_BLK_DEV_THROTTLING */
+static inline int blk_throtl_bio(struct request_queue *q, struct bio **bio)
+{
+ return 0;
+}
+static inline int blk_throtl_init(struct request_queue *q) { return 0; }
+static inline void blk_throtl_exit(struct request_queue *q) { }
+#endif /* CONFIG_BLK_DEV_THROTTLING */
+
+#endif /* BLK_INTERNAL_H */