From 263663cd3c4fbfc40cb7504c4be2dadbc0992cc1 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 18 Dec 2017 20:22:04 +0800 Subject: [PATCH] block: convert to bio_first_bvec_all & bio_first_page_all This patch converts to bio_first_bvec_all() & bio_first_page_all() for retrieving the 1st bvec/page, and prepares for supporting multipage bvec. Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- drivers/block/drbd/drbd_bitmap.c | 2 +- drivers/block/zram/zram_drv.c | 2 +- drivers/md/bcache/super.c | 8 ++++---- fs/btrfs/compression.c | 2 +- fs/btrfs/inode.c | 4 ++-- fs/f2fs/data.c | 2 +- kernel/power/swap.c | 2 +- mm/page_io.c | 4 ++-- 8 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index bd97908c766f..9f4e6f502b84 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -953,7 +953,7 @@ static void drbd_bm_endio(struct bio *bio) struct drbd_bm_aio_ctx *ctx = bio->bi_private; struct drbd_device *device = ctx->device; struct drbd_bitmap *b = device->bitmap; - unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page); + unsigned int idx = bm_page_to_idx(bio_first_page_all(bio)); if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 && !bm_test_page_unchanged(b->bm_pages[idx])) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index d70eba30003a..0afa6c8c3857 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -430,7 +430,7 @@ static void put_entry_bdev(struct zram *zram, unsigned long entry) static void zram_page_end_io(struct bio *bio) { - struct page *page = bio->bi_io_vec[0].bv_page; + struct page *page = bio_first_page_all(bio); page_endio(page, op_is_write(bio_op(bio)), blk_status_to_errno(bio->bi_status)); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index b4d28928dec5..8399fe0651f2 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -211,7 +211,7 @@ static void write_bdev_super_endio(struct bio *bio) static void __write_super(struct cache_sb *sb, struct bio *bio) { - struct cache_sb *out = page_address(bio->bi_io_vec[0].bv_page); + struct cache_sb *out = page_address(bio_first_page_all(bio)); unsigned i; bio->bi_iter.bi_sector = SB_SECTOR; @@ -1166,7 +1166,7 @@ static void register_bdev(struct cache_sb *sb, struct page *sb_page, dc->bdev->bd_holder = dc; bio_init(&dc->sb_bio, dc->sb_bio.bi_inline_vecs, 1); - dc->sb_bio.bi_io_vec[0].bv_page = sb_page; + bio_first_bvec_all(&dc->sb_bio)->bv_page = sb_page; get_page(sb_page); if (cached_dev_init(dc, sb->block_size << 9)) @@ -1810,7 +1810,7 @@ void bch_cache_release(struct kobject *kobj) free_fifo(&ca->free[i]); if (ca->sb_bio.bi_inline_vecs[0].bv_page) - put_page(ca->sb_bio.bi_io_vec[0].bv_page); + put_page(bio_first_page_all(&ca->sb_bio)); if (!IS_ERR_OR_NULL(ca->bdev)) blkdev_put(ca->bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); @@ -1864,7 +1864,7 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page, ca->bdev->bd_holder = ca; bio_init(&ca->sb_bio, ca->sb_bio.bi_inline_vecs, 1); - ca->sb_bio.bi_io_vec[0].bv_page = sb_page; + bio_first_bvec_all(&ca->sb_bio)->bv_page = sb_page; get_page(sb_page); if (blk_queue_discard(bdev_get_queue(ca->bdev))) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 5982c8a71f02..38a6b091bc25 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -563,7 +563,7 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, /* we need the actual starting offset of this extent in the file */ read_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, - page_offset(bio->bi_io_vec->bv_page), + page_offset(bio_first_page_all(bio)), PAGE_SIZE); read_unlock(&em_tree->lock); if (!em) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e1a7f3cb5be9..4d5cb6e93c80 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8074,7 +8074,7 @@ static void btrfs_retry_endio_nocsum(struct bio *bio) ASSERT(bio->bi_vcnt == 1); io_tree = &BTRFS_I(inode)->io_tree; failure_tree = &BTRFS_I(inode)->io_failure_tree; - ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode)); + ASSERT(bio_first_bvec_all(bio)->bv_len == btrfs_inode_sectorsize(inode)); done->uptodate = 1; ASSERT(!bio_flagged(bio, BIO_CLONED)); @@ -8164,7 +8164,7 @@ static void btrfs_retry_endio(struct bio *bio) uptodate = 1; ASSERT(bio->bi_vcnt == 1); - ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode)); + ASSERT(bio_first_bvec_all(bio)->bv_len == btrfs_inode_sectorsize(done->inode)); io_tree = &BTRFS_I(inode)->io_tree; failure_tree = &BTRFS_I(inode)->io_failure_tree; diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 516fa0d3ff9c..455f086cce3d 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -56,7 +56,7 @@ static void f2fs_read_end_io(struct bio *bio) int i; #ifdef CONFIG_F2FS_FAULT_INJECTION - if (time_to_inject(F2FS_P_SB(bio->bi_io_vec->bv_page), FAULT_IO)) { + if (time_to_inject(F2FS_P_SB(bio_first_page_all(bio)), FAULT_IO)) { f2fs_show_injection_info(FAULT_IO); bio->bi_status = BLK_STS_IOERR; } diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 293ead59eccc..96c736313faa 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -240,7 +240,7 @@ static void hib_init_batch(struct hib_bio_batch *hb) static void hib_end_io(struct bio *bio) { struct hib_bio_batch *hb = bio->bi_private; - struct page *page = bio->bi_io_vec[0].bv_page; + struct page *page = bio_first_page_all(bio); if (bio->bi_status) { pr_alert("Read-error on swap-device (%u:%u:%Lu)\n", diff --git a/mm/page_io.c b/mm/page_io.c index e93f1a4cacd7..b41cf9644585 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -50,7 +50,7 @@ static struct bio *get_swap_bio(gfp_t gfp_flags, void end_swap_bio_write(struct bio *bio) { - struct page *page = bio->bi_io_vec[0].bv_page; + struct page *page = bio_first_page_all(bio); if (bio->bi_status) { SetPageError(page); @@ -122,7 +122,7 @@ static void swap_slot_free_notify(struct page *page) static void end_swap_bio_read(struct bio *bio) { - struct page *page = bio->bi_io_vec[0].bv_page; + struct page *page = bio_first_page_all(bio); struct task_struct *waiter = bio->bi_private; if (bio->bi_status) {