From: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Date: Mon, 14 Feb 2011 14:16:10 +0000 (+0200)
Subject: mtd_blkdevs: Set the maximum discards size
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=115ee88c15b55859a8b59c5dccb3882bbd47e542;p=openwrt%2Fstaging%2Fblogic.git

mtd_blkdevs: Set the maximum discards size

Set max_discard_sectors to UINT_MAX.

Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index e0b5f6442171..650511304030 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -405,9 +405,10 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
 	new->rq->queuedata = new;
 	blk_queue_logical_block_size(new->rq, tr->blksize);
 
-	if (tr->discard)
-		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
-					new->rq);
+	if (tr->discard) {
+		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq);
+		new->rq->limits.max_discard_sectors = UINT_MAX;
+	}
 
 	gd->queue = new->rq;