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Commit 38f8baae authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: factor out chained bio completion 



Factor common code between bio_chain_endio and bio_endio into a common
helper.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent af3e3a52

block/bio.c

+8 −8
Original line number Diff line number Diff line
@@ -296,14 +296,19 @@ void bio_reset(struct bio *bio) 
}

EXPORT_SYMBOL(bio_reset);



static void bio_chain_endio(struct bio *bio)

static struct bio *__bio_chain_endio(struct bio *bio)

{

	struct bio *parent = bio->bi_private;



	if (!parent->bi_error)

		parent->bi_error = bio->bi_error;

	bio_endio(parent);

	bio_put(bio);

	return parent;

}



static void bio_chain_endio(struct bio *bio)

{

	bio_endio(__bio_chain_endio(bio));

}



/*
@@ -1753,12 +1758,7 @@ void bio_endio(struct bio *bio) 
		 * pointers also disables gcc's sibling call optimization.

		 */

		if (bio->bi_end_io == bio_chain_endio) {

			struct bio *parent = bio->bi_private;



			if (!parent->bi_error)

				parent->bi_error = bio->bi_error;

			bio_put(bio);

			bio = parent;

			bio = __bio_chain_endio(bio);

		} else {

			if (bio->bi_end_io)

				bio->bi_end_io(bio);