commit 72c270612bd33192fa836ad0f2939af1ca218292
author Kent Overstreet <koverstreet@google.com> Wed Jun 05 06:24:39 2013 -0700
committer Kent Overstreet <koverstreet@google.com> Wed Jun 26 21:58:04 2013 -0700
tree 344129d75f3b5c0abcf77dd4b6340783a126cde8
parent 279afbad4e54acbd61bf88a54a73af3bbfdeb5dd

bcache: Write out full stripes

Now that we're tracking dirty data per stripe, we can add two
optimizations for raid5/6:

 * If a stripe is already dirty, force writes to that stripe to
   writeback mode - to help build up full stripes of dirty data

 * When flushing dirty data, preferentially write out full stripes first
   if there are any.

Signed-off-by: Kent Overstreet <koverstreet@google.com>

drivers/md/bcache/debug.c

diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 82e3a07..1c8fd31 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -357,7 +357,7 @@
 		if (i->bytes)
 			break;
 
-		w = bch_keybuf_next_rescan(i->c, &i->keys, &MAX_KEY);
+		w = bch_keybuf_next_rescan(i->c, &i->keys, &MAX_KEY, dump_pred);
 		if (!w)
 			break;
 
@@ -380,7 +380,7 @@
 
 	file->private_data = i;
 	i->c = c;
-	bch_keybuf_init(&i->keys, dump_pred);
+	bch_keybuf_init(&i->keys);
 	i->keys.last_scanned = KEY(0, 0, 0);
 
 	return 0;