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Tue, 13 Jul 2021 06:15:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id yAksIIMv7WB0XgAAGKfGzw (envelope-from ) for ; Tue, 13 Jul 2021 06:15:31 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH 10/27] btrfs: introduce submit_compressed_bio() for compression Date: Tue, 13 Jul 2021 14:14:59 +0800 Message-Id: <20210713061516.163318-11-wqu@suse.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210713061516.163318-1-wqu@suse.com> References: <20210713061516.163318-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The new helper, submit_compressed_bio(), will aggregate the following work: - Increase compressed_bio::pending_bios - Remap the endio function - Map and submit the bio Signed-off-by: Qu Wenruo --- fs/btrfs/compression.c | 45 ++++++++++++++++++------------------------ 1 file changed, 19 insertions(+), 26 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 0ff7975ad874..5db5b7450d95 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -422,6 +422,21 @@ static void end_compressed_bio_write(struct bio *bio) bio_put(bio); } +static blk_status_t submit_compressed_bio(struct btrfs_fs_info *fs_info, + struct compressed_bio *cb, + struct bio *bio, int mirror_num) +{ + blk_status_t ret; + + ASSERT(bio->bi_iter.bi_size); + atomic_inc(&cb->pending_bios); + ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA); + if (ret) + return ret; + ret = btrfs_map_bio(fs_info, bio, mirror_num); + return ret; +} + /* * worker function to build and submit bios for previously compressed pages. * The corresponding pages in the inode should be marked for writeback @@ -517,19 +532,13 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, page->mapping = NULL; if (submit || len < PAGE_SIZE) { - atomic_inc(&cb->pending_bios); - ret = btrfs_bio_wq_end_io(fs_info, bio, - BTRFS_WQ_ENDIO_DATA); - if (ret) - goto finish_cb; - if (!skip_sum) { ret = btrfs_csum_one_bio(inode, bio, start, 1); if (ret) goto finish_cb; } - ret = btrfs_map_bio(fs_info, bio, 0); + ret = submit_compressed_bio(fs_info, cb, bio, 0); if (ret) goto finish_cb; @@ -555,18 +564,13 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, cond_resched(); } - atomic_inc(&cb->pending_bios); - ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA); - if (ret) - goto last_bio; - if (!skip_sum) { ret = btrfs_csum_one_bio(inode, bio, start, 1); if (ret) goto last_bio; } - ret = btrfs_map_bio(fs_info, bio, 0); + ret = submit_compressed_bio(fs_info, cb, bio, 0); if (ret) goto last_bio; @@ -872,12 +876,6 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, if (submit || bio_add_page(comp_bio, page, pg_len, 0) < pg_len) { unsigned int nr_sectors; - atomic_inc(&cb->pending_bios); - ret = btrfs_bio_wq_end_io(fs_info, comp_bio, - BTRFS_WQ_ENDIO_DATA); - if (ret) - goto finish_cb; - ret = btrfs_lookup_bio_sums(inode, comp_bio, sums); if (ret) goto finish_cb; @@ -886,7 +884,7 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, fs_info->sectorsize); sums += fs_info->csum_size * nr_sectors; - ret = btrfs_map_bio(fs_info, comp_bio, mirror_num); + ret = submit_compressed_bio(fs_info, cb, comp_bio, mirror_num); if (ret) goto finish_cb; @@ -900,16 +898,11 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, cur_disk_byte += pg_len; } - atomic_inc(&cb->pending_bios); - ret = btrfs_bio_wq_end_io(fs_info, comp_bio, BTRFS_WQ_ENDIO_DATA); - if (ret) - goto last_bio; - ret = btrfs_lookup_bio_sums(inode, comp_bio, sums); if (ret) goto last_bio; - ret = btrfs_map_bio(fs_info, comp_bio, mirror_num); + ret = submit_compressed_bio(fs_info, cb, comp_bio, mirror_num); if (ret) goto last_bio; -- 2.32.0