This is a note to let you know that I've just added the patch titled
dm: fix second blk_delay_queue() parameter to be in msec units not jiffies
to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-fix-second-blk_delay_queue-parameter-to-be-in-msec-units-not-jiffies.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bd9f55ea1cf6e14eb054b06ea877d2d1fa339514 Mon Sep 17 00:00:00 2001
From: Tahsin Erdogan <tahsin@xxxxxxxxxx>
Date: Fri, 15 Jul 2016 06:27:08 -0700
Subject: dm: fix second blk_delay_queue() parameter to be in msec units not jiffies
From: Tahsin Erdogan <tahsin@xxxxxxxxxx>
commit bd9f55ea1cf6e14eb054b06ea877d2d1fa339514 upstream.
Commit d548b34b062 ("dm: reduce the queue delay used in dm_request_fn
from 100ms to 10ms") always intended the value to be 10 msecs -- it
just expressed it in jiffies because earlier commit 7eaceaccab ("block:
remove per-queue plugging") did.
Signed-off-by: Tahsin Erdogan <tahsin@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Fixes: d548b34b062 ("dm: reduce the queue delay used in dm_request_fn from 100ms to 10ms")
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2175,7 +2175,7 @@ static void dm_request_fn(struct request
md_in_flight(md) && rq->bio && rq->bio->bi_vcnt == 1 &&
md->last_rq_pos == pos && md->last_rq_rw == rq_data_dir(rq)) ||
(ti->type->busy && ti->type->busy(ti))) {
- blk_delay_queue(q, HZ / 100);
+ blk_delay_queue(q, 10);
return;
}
Patches currently in stable-queue which might be from tahsin@xxxxxxxxxx are
queue-4.7/dm-fix-second-blk_delay_queue-parameter-to-be-in-msec-units-not-jiffies.patch
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