commit 29e6c57cc78eb7cb8302088061a0721a41ade658
author Jiri Kosina <jkosina@suse.cz> Tue May 24 16:38:34 2016 +0200
committer Jens Axboe <axboe@fb.com> Tue May 24 09:00:45 2016 -0600
tree abbd69fec10c4f30b31c97e390d66373ef28ea27
parent 770b8ce400123af89ac469361d7912f458915547

bcache: bch_gc_thread() is not freezable

bch_gc_thread() doesn't mark itself freezable, so calling try_to_freeze()
in its context is just an expensive no-op.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>

drivers/md/bcache/btree.c

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 22b9e34..eab505e 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -27,7 +27,6 @@
 
 #include <linux/slab.h>
 #include <linux/bitops.h>
-#include <linux/freezer.h>
 #include <linux/hash.h>
 #include <linux/kthread.h>
 #include <linux/prefetch.h>
@@ -1787,7 +1786,6 @@
 
 		mutex_unlock(&c->bucket_lock);
 
-		try_to_freeze();
 		schedule();
 	}