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>
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 1b64e66..b9bd586 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -210,7 +210,7 @@
* multiple times when it can't do anything
*/
ca->invalidate_needs_gc = 1;
- bch_queue_gc(ca->set);
+ wake_up_gc(ca->set);
return;
}
@@ -235,7 +235,7 @@
if (++checked >= ca->sb.nbuckets) {
ca->invalidate_needs_gc = 1;
- bch_queue_gc(ca->set);
+ wake_up_gc(ca->set);
return;
}
}
@@ -260,7 +260,7 @@
if (++checked >= ca->sb.nbuckets / 2) {
ca->invalidate_needs_gc = 1;
- bch_queue_gc(ca->set);
+ wake_up_gc(ca->set);
return;
}
}