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From: Christoph Hellwig <hch@lst.de>
To: Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>, Qu Wenruo <wqu@suse.com>
Cc: Naohiro Aota <naohiro.aota@wdc.com>, linux-btrfs@vger.kernel.org
Subject: [PATCH 08/12] btrfs: pass a block_device to btrfs_bio_clone
Date: Fri,  8 Apr 2022 07:08:35 +0200	[thread overview]
Message-ID: <20220408050839.239113-9-hch@lst.de> (raw)
In-Reply-To: <20220408050839.239113-1-hch@lst.de>

Pass the block_device to btrfs_bio_clone so that it can be paased on to
bio_alloc_clone instead of setting it later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/btrfs/extent_io.c | 4 ++--
 fs/btrfs/extent_io.h | 2 +-
 fs/btrfs/volumes.c   | 9 +++++----
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ede7a72fe840c..1a5a7ded31758 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3188,13 +3188,13 @@ struct bio *btrfs_bio_alloc(unsigned int nr_iovecs)
 	return bio;
 }
 
-struct bio *btrfs_bio_clone(struct bio *bio)
+struct bio *btrfs_bio_clone(struct block_device *bdev, struct bio *bio)
 {
 	struct btrfs_bio *bbio;
 	struct bio *new;
 
 	/* Bio allocation backed by a bioset does not fail */
-	new = bio_alloc_clone(bio->bi_bdev, bio, GFP_NOFS, &btrfs_bioset);
+	new = bio_alloc_clone(bdev, bio, GFP_NOFS, &btrfs_bioset);
 	bbio = btrfs_bio(new);
 	btrfs_bio_init(bbio);
 	bbio->iter = bio->bi_iter;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 1331902c75815..05253612ce7bb 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -280,7 +280,7 @@ void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
 
 int btrfs_alloc_page_array(unsigned int nr_pages, struct page **page_array);
 struct bio *btrfs_bio_alloc(unsigned int nr_iovecs);
-struct bio *btrfs_bio_clone(struct bio *bio);
+struct bio *btrfs_bio_clone(struct block_device *bdev, struct bio *bio);
 struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size);
 
 void end_extent_writepage(struct page *page, int err, u64 start, u64 end);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8e066b9ebfbde..2368a2ffbee75 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6824,12 +6824,13 @@ blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
 			continue;
 		}
 
-		if (dev_nr < total_devs - 1)
-			bio = btrfs_bio_clone(first_bio);
-		else
+		if (dev_nr < total_devs - 1) {
+			bio = btrfs_bio_clone(dev->bdev, first_bio);
+		} else {
 			bio = first_bio;
+			bio_set_dev(bio, dev->bdev);
+		}
 
-		bio_set_dev(bio, dev->bdev);
 		submit_stripe_bio(bioc, bio, bioc->stripes[dev_nr].physical, dev);
 	}
 	btrfs_bio_counter_dec(fs_info);
-- 
2.30.2


  parent reply	other threads:[~2022-04-08  5:09 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-08  5:08 cleanup btrfs bio handling, part 1 v2 Christoph Hellwig
2022-04-08  5:08 ` [PATCH 01/12] btrfs: refactor __btrfsic_submit_bio Christoph Hellwig
2022-04-08  7:22   ` Qu Wenruo
2022-04-08  5:08 ` [PATCH 02/12] btrfs: split submit_bio from btrfsic checking Christoph Hellwig
2022-04-08  5:08 ` [PATCH 03/12] btrfs: simplify btrfsic_read_block Christoph Hellwig
2022-04-08  7:23   ` Qu Wenruo
2022-04-08  5:08 ` [PATCH 04/12] btrfs: simplify repair_io_failure Christoph Hellwig
2022-04-08  5:08 ` [PATCH 05/12] btrfs: simplify scrub_recheck_block Christoph Hellwig
2022-04-08  5:08 ` [PATCH 06/12] btrfs: simplify scrub_repair_page_from_good_copy Christoph Hellwig
2022-04-08  5:08 ` [PATCH 07/12] btrfs: move the call to bio_set_dev out of submit_stripe_bio Christoph Hellwig
2022-04-08  7:27   ` Qu Wenruo
2022-04-08 13:27     ` David Sterba
2022-04-08  5:08 ` Christoph Hellwig [this message]
2022-04-08  5:08 ` [PATCH 09/12] btrfs: initialize ->bi_opf and ->bi_private in rbio_add_io_page Christoph Hellwig
2022-04-08  5:08 ` [PATCH 10/12] btrfs: don't allocate a btrfs_bio for raid56 per-stripe bios Christoph Hellwig
2022-04-08  5:08 ` [PATCH 11/12] btrfs: don't allocate a btrfs_bio for scrub bios Christoph Hellwig
2022-04-08  5:08 ` [PATCH 12/12] btrfs: stop using the btrfs_bio saved iter in index_rbio_pages Christoph Hellwig
2022-04-08  7:37   ` Qu Wenruo
2022-04-08 16:00 ` cleanup btrfs bio handling, part 1 v2 David Sterba
  -- strict thread matches above, loose matches on Subject: below --
2022-04-04  4:45 cleanup btrfs bio handling, part 1 Christoph Hellwig
2022-04-04  4:45 ` [PATCH 08/12] btrfs: pass a block_device to btrfs_bio_clone Christoph Hellwig
2022-04-04  7:05   ` Johannes Thumshirn
2022-04-04  7:07     ` Christoph Hellwig

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