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Patch "block: fix the count of PGPGOUT for WRITE_SAME" has been added to the 4.15-stable tree

PATCH [email protected] 1 participant 1 message Mar 6, 2018

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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 4.15-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-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 7c5a0dcf557c6511a61e092ba887de28882fe857 Mon Sep 17 00:00:00 2001

From: Jiufei Xue <[email protected]>
Date: Tue, 27 Feb 2018 20:10:03 +0800
Subject: block: fix the count of PGPGOUT for WRITE_SAME

From: Jiufei Xue <[email protected]>

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 [email protected]
Reviewed-by Omar Sandoval <[email protected]>
Reviewed-by Christoph Hellwig <[email protected]>
Signed-off-by Jiufei Xue <[email protected]>
Signed-off-by Jens Axboe <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 block/blk-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
block/blk-core.c +1 -1
@@ -2401,7 +2401,7 @@ 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 [email protected] are

queue-4.15/block-fix-the-count-of-pgpgout-for-write_same.patch