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authorKent Overstreet <kmo@daterainc.com>2013-10-25 04:19:26 +0400
committerKent Overstreet <kmo@daterainc.com>2013-11-11 09:56:04 +0400
commit72a44517f3ca3725dc86081d105457df46448679 (patch)
tree247b859af6c4377ab1ea90fd1fd4e64278ccdbbd /drivers/md/bcache/btree.h
parent35fcd848d72683141052aa9880542461577f2dbe (diff)
downloadlinux-72a44517f3ca3725dc86081d105457df46448679.tar.xz
bcache: Convert gc to a kthread
We needed a dedicated rescuer workqueue for gc anyways... and gc was conceptually a dedicated thread, just one that wasn't running all the time. Switch it to a dedicated thread to make the code a bit more straightforward. Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md/bcache/btree.h')
-rw-r--r--drivers/md/bcache/btree.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index d691d954730e..fa9641aaed39 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -388,12 +388,18 @@ int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
int bch_btree_search_recurse(struct btree *, struct btree_op *);
-void bch_queue_gc(struct cache_set *);
+int bch_gc_thread_start(struct cache_set *);
size_t bch_btree_gc_finish(struct cache_set *);
-void bch_moving_gc(struct closure *);
+void bch_moving_gc(struct cache_set *);
int bch_btree_check(struct cache_set *, struct btree_op *);
uint8_t __bch_btree_mark_key(struct cache_set *, int, struct bkey *);
+static inline void wake_up_gc(struct cache_set *c)
+{
+ if (c->gc_thread)
+ wake_up_process(c->gc_thread);
+}
+
void bch_keybuf_init(struct keybuf *);
void bch_refill_keybuf(struct cache_set *, struct keybuf *, struct bkey *,
keybuf_pred_fn *);