commit 5404bc7a87b9949cf61e0174b21f80e73239ab25
author Jens Axboe <axboe@suse.de> Thu Aug 10 09:01:02 2006 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> Sat Sep 30 20:29:42 2006 +0200
tree 230c799aef2dcad8c64da55114508d28d2b30183
parent da20a20f3b5c175648fa797c899dd577e4dacb51

[PATCH] Allow file systems to differentiate between data and meta reads

We can use this information for making more intelligent priority
decisions, and it will also be useful for blktrace.

Signed-off-by: Jens Axboe <axboe@suse.de>

block/ll_rw_blk.c

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index e3980ec..57992ae 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -2884,6 +2884,8 @@
 
 	if (bio_sync(bio))
 		req->cmd_flags |= REQ_RW_SYNC;
+	if (bio_rw_meta(bio))
+		req->cmd_flags |= REQ_RW_META;
 
 	req->errors = 0;
 	req->hard_sector = req->sector = bio->bi_sector;