This is a note to let you know that I've just added the patch titled
block: fix the count of PGPGOUT for WRITE_SAME
to the 4.14-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:
block-fix-the-count-of-pgpgout-for-write_same.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7c5a0dcf557c6511a61e092ba887de28882fe857 Mon Sep 17 00:00:00 2001
From: Jiufei Xue <jiufei.xue@xxxxxxxxxxxxxxxxx>
Date: Tue, 27 Feb 2018 20:10:03 +0800
Subject: block: fix the count of PGPGOUT for WRITE_SAME
From: Jiufei Xue <jiufei.xue@xxxxxxxxxxxxxxxxx>
commit 7c5a0dcf557c6511a61e092ba887de28882fe857 upstream.
The vm counters is counted in sectors, so we should do the conversation
in submit_bio.
Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Omar Sandoval <osandov@xxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jiufei Xue <jiufei.xue@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
block/blk-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2277,7 +2277,7 @@ blk_qc_t submit_bio(struct bio *bio)
unsigned int count;
if (unlikely(bio_op(bio) == REQ_OP_WRITE_SAME))
- count = queue_logical_block_size(bio->bi_disk->queue);
+ count = queue_logical_block_size(bio->bi_disk->queue) >> 9;
else
count = bio_sectors(bio);
Patches currently in stable-queue which might be from jiufei.xue@xxxxxxxxxxxxxxxxx are
queue-4.14/block-fix-the-count-of-pgpgout-for-write_same.patch