commit c4d951ddb66fe1d087447b0ba65c4fa4446f1083
author Kent Overstreet <kmo@daterainc.com> Wed Aug 21 17:49:09 2013 -0700
committer Kent Overstreet <kmo@daterainc.com> Sun Nov 10 21:56:41 2013 -0800
tree 80564725ffa4cfa0d1a02b0a80f419edcd424548
parent 48a915a87f0bd98c3d68d029acf223a2e5116f07

bcache: Fix sysfs splat on shutdown with flash only devs

Whoops.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>

drivers/md/bcache/writeback.h

diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index fe7d9d5..c9ddcf4 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -45,7 +45,7 @@
 	unsigned in_use = dc->disk.c->gc_stats.in_use;
 
 	if (cache_mode != CACHE_MODE_WRITEBACK ||
-	    atomic_read(&dc->disk.detaching) ||
+	    test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||
 	    in_use > CUTOFF_WRITEBACK_SYNC)
 		return false;