From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0D59C433F5 for ; Wed, 15 Sep 2021 07:17:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 989546113E for ; Wed, 15 Sep 2021 07:17:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236540AbhIOHSq (ORCPT ); Wed, 15 Sep 2021 03:18:46 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:53852 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236501AbhIOHSp (ORCPT ); Wed, 15 Sep 2021 03:18:45 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id F28BC2219D for ; Wed, 15 Sep 2021 07:17:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1631690246; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wWJmTuPCs/ObTlQx3Dgsb11GGtMzegnzpCyYdjtdqu8=; b=O/UJFqDBAnfY6sAQzpzVh7wtdrlaE0valJX9hdHKLtTo2vUcu/stVX3lXsZnQT0Cbx6Ehz hZL98GW57YSAe2oq+1Is4kCxHtfuD7gicVihWEVGU6rJV6ywelc0hDlebe5CHJeuZMML1e GfOz0f+c5+VHY49thK0K67Cqb4MZZJE= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 35BB613C1A for ; Wed, 15 Sep 2021 07:17:24 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id WHjNOQSeQWGxEAAAMHmgww (envelope-from ) for ; Wed, 15 Sep 2021 07:17:24 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH v3 3/3] btrfs: rename struct btrfs_io_bio to btrfs_logical_bio Date: Wed, 15 Sep 2021 15:17:18 +0800 Message-Id: <20210915071718.59418-4-wqu@suse.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210915071718.59418-1-wqu@suse.com> References: <20210915071718.59418-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Previously we have "struct btrfs_bio", which records IO context for mirrored IO and RAID56, and "strcut btrfs_io_bio", which records extra btrfs specific info for logical bytenr bio. With "strcut btrfs_bio" renamed to "struct btrfs_io_context", we are safe to rename "strcut btrfs_io_bio" to "strcut btrfs_logical_bio" which is a more suitable name now. Although the name, "btrfs_logical_bio", is a little long and name "btrfs_bio" can be much shorter, "btrfs_bio" conflicts with previous "btrfs_bio" structure and can cause a lot of problems for backports. Thus here we choose the name "btrfs_logical_bio", which also emphasis those bios all work at logical bytenr. Signed-off-by: Qu Wenruo --- fs/btrfs/check-integrity.c | 2 +- fs/btrfs/compression.c | 16 ++++----- fs/btrfs/ctree.h | 6 ++-- fs/btrfs/disk-io.c | 2 +- fs/btrfs/disk-io.h | 2 +- fs/btrfs/extent_io.c | 69 +++++++++++++++++++------------------- fs/btrfs/extent_io.h | 7 ++-- fs/btrfs/file-item.c | 12 +++---- fs/btrfs/inode.c | 50 ++++++++++++++------------- fs/btrfs/raid56.c | 8 ++--- fs/btrfs/scrub.c | 14 ++++---- fs/btrfs/volumes.c | 10 +++--- fs/btrfs/volumes.h | 29 ++++++++-------- 13 files changed, 116 insertions(+), 111 deletions(-) diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c index 81b11124b67a..94fefaa6438c 100644 --- a/fs/btrfs/check-integrity.c +++ b/fs/btrfs/check-integrity.c @@ -1561,7 +1561,7 @@ static int btrfsic_read_block(struct btrfsic_state *state, struct bio *bio; unsigned int j; - bio = btrfs_io_bio_alloc(num_pages - i); + bio = btrfs_logical_bio_alloc(num_pages - i); bio_set_dev(bio, block_ctx->dev->bdev); bio->bi_iter.bi_sector = dev_bytenr >> 9; bio->bi_opf = REQ_OP_READ; diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 2475dc0b1c22..331ef88b87d1 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -179,9 +179,9 @@ static int check_compressed_csum(struct btrfs_inode *inode, struct bio *bio, if (memcmp(&csum, cb_sum, csum_size) != 0) { btrfs_print_data_csum_error(inode, disk_start, csum, cb_sum, cb->mirror_num); - if (btrfs_io_bio(bio)->device) + if (btrfs_logical_bio(bio)->device) btrfs_dev_stat_inc_and_print( - btrfs_io_bio(bio)->device, + btrfs_logical_bio(bio)->device, BTRFS_DEV_STAT_CORRUPTION_ERRS); return -EIO; } @@ -208,7 +208,7 @@ static void end_compressed_bio_read(struct bio *bio) struct inode *inode; struct page *page; unsigned int index; - unsigned int mirror = btrfs_io_bio(bio)->mirror_num; + unsigned int mirror = btrfs_logical_bio(bio)->mirror_num; int ret = 0; if (bio->bi_status) @@ -224,7 +224,7 @@ static void end_compressed_bio_read(struct bio *bio) * Record the correct mirror_num in cb->orig_bio so that * read-repair can work properly. */ - btrfs_io_bio(cb->orig_bio)->mirror_num = mirror; + btrfs_logical_bio(cb->orig_bio)->mirror_num = mirror; cb->mirror_num = mirror; /* @@ -418,7 +418,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, cb->orig_bio = NULL; cb->nr_pages = nr_pages; - bio = btrfs_io_bio_alloc(0); + bio = btrfs_logical_bio_alloc(0); bio->bi_iter.bi_sector = first_byte >> SECTOR_SHIFT; bio->bi_opf = bio_op | write_flags; bio->bi_private = cb; @@ -491,7 +491,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, bio_endio(bio); } - bio = btrfs_io_bio_alloc(0); + bio = btrfs_logical_bio_alloc(0); bio->bi_iter.bi_sector = first_byte >> SECTOR_SHIFT; bio->bi_opf = bio_op | write_flags; bio->bi_private = cb; @@ -750,7 +750,7 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, /* include any pages we added in add_ra-bio_pages */ cb->len = bio->bi_iter.bi_size; - comp_bio = btrfs_io_bio_alloc(0); + comp_bio = btrfs_logical_bio_alloc(0); comp_bio->bi_iter.bi_sector = cur_disk_byte >> SECTOR_SHIFT; comp_bio->bi_opf = REQ_OP_READ; comp_bio->bi_private = cb; @@ -809,7 +809,7 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, bio_endio(comp_bio); } - comp_bio = btrfs_io_bio_alloc(0); + comp_bio = btrfs_logical_bio_alloc(0); comp_bio->bi_iter.bi_sector = cur_disk_byte >> SECTOR_SHIFT; comp_bio->bi_opf = REQ_OP_READ; comp_bio->bi_private = cb; diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 38870ae46cbb..41bc28f6c6c4 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -48,6 +48,7 @@ extern struct kmem_cache *btrfs_free_space_cachep; extern struct kmem_cache *btrfs_free_space_bitmap_cachep; struct btrfs_ordered_sum; struct btrfs_ref; +struct btrfs_logical_bio; #define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */ @@ -3133,8 +3134,9 @@ u64 btrfs_file_extent_end(const struct btrfs_path *path); /* inode.c */ blk_status_t btrfs_submit_data_bio(struct inode *inode, struct bio *bio, int mirror_num, unsigned long bio_flags); -unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset, - struct page *page, u64 start, u64 end); +unsigned int btrfs_verify_data_csum(struct btrfs_logical_bio *lbio, + u32 bio_offset, struct page *page, + u64 start, u64 end); struct extent_map *btrfs_get_extent_fiemap(struct btrfs_inode *inode, u64 start, u64 len); noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len, diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 7d80e5b22d32..4909f6e5c6f8 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -683,7 +683,7 @@ static int validate_subpage_buffer(struct page *page, u64 start, u64 end, return ret; } -int btrfs_validate_metadata_buffer(struct btrfs_io_bio *io_bio, +int btrfs_validate_metadata_buffer(struct btrfs_logical_bio *lbio, struct page *page, u64 start, u64 end, int mirror) { diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index 0e7e9526b6a8..aad13d02b9ad 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -81,7 +81,7 @@ void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info); void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info); void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root); -int btrfs_validate_metadata_buffer(struct btrfs_io_bio *io_bio, +int btrfs_validate_metadata_buffer(struct btrfs_logical_bio *lbio, struct page *page, u64 start, u64 end, int mirror); blk_status_t btrfs_submit_metadata_bio(struct inode *inode, struct bio *bio, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index d3fcf7e8dc48..9ae6fddc4cc8 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -241,7 +241,7 @@ int __init extent_io_init(void) return -ENOMEM; if (bioset_init(&btrfs_bioset, BIO_POOL_SIZE, - offsetof(struct btrfs_io_bio, bio), + offsetof(struct btrfs_logical_bio, bio), BIOSET_NEED_BVECS)) goto free_buffer_cache; @@ -2299,7 +2299,7 @@ static int repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start, if (btrfs_is_zoned(fs_info)) return btrfs_repair_one_zone(fs_info, logical); - bio = btrfs_io_bio_alloc(1); + bio = btrfs_logical_bio_alloc(1); bio->bi_iter.bi_size = 0; map_length = length; @@ -2618,10 +2618,10 @@ int btrfs_repair_one_sector(struct inode *inode, struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree; struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree; - struct btrfs_io_bio *failed_io_bio = btrfs_io_bio(failed_bio); + struct btrfs_logical_bio *failed_lbio = btrfs_logical_bio(failed_bio); const int icsum = bio_offset >> fs_info->sectorsize_bits; struct bio *repair_bio; - struct btrfs_io_bio *repair_io_bio; + struct btrfs_logical_bio *repair_lbio; blk_status_t status; btrfs_debug(fs_info, @@ -2639,24 +2639,24 @@ int btrfs_repair_one_sector(struct inode *inode, return -EIO; } - repair_bio = btrfs_io_bio_alloc(1); - repair_io_bio = btrfs_io_bio(repair_bio); + repair_bio = btrfs_logical_bio_alloc(1); + repair_lbio = btrfs_logical_bio(repair_bio); repair_bio->bi_opf = REQ_OP_READ; repair_bio->bi_end_io = failed_bio->bi_end_io; repair_bio->bi_iter.bi_sector = failrec->logical >> 9; repair_bio->bi_private = failed_bio->bi_private; - if (failed_io_bio->csum) { + if (failed_lbio->csum) { const u32 csum_size = fs_info->csum_size; - repair_io_bio->csum = repair_io_bio->csum_inline; - memcpy(repair_io_bio->csum, - failed_io_bio->csum + csum_size * icsum, csum_size); + repair_lbio->csum = repair_lbio->csum_inline; + memcpy(repair_lbio->csum, + failed_lbio->csum + csum_size * icsum, csum_size); } bio_add_page(repair_bio, page, failrec->len, pgoff); - repair_io_bio->logical = failrec->start; - repair_io_bio->iter = repair_bio->bi_iter; + repair_lbio->logical = failrec->start; + repair_lbio->iter = repair_bio->bi_iter; btrfs_debug(btrfs_sb(inode->i_sb), "repair read error: submitting new read to mirror %d", @@ -2976,7 +2976,7 @@ static struct extent_buffer *find_extent_buffer_readpage( static void end_bio_extent_readpage(struct bio *bio) { struct bio_vec *bvec; - struct btrfs_io_bio *io_bio = btrfs_io_bio(bio); + struct btrfs_logical_bio *lbio = btrfs_logical_bio(bio); struct extent_io_tree *tree, *failure_tree; struct processed_extent processed = { 0 }; /* @@ -3003,7 +3003,7 @@ static void end_bio_extent_readpage(struct bio *bio) btrfs_debug(fs_info, "end_bio_extent_readpage: bi_sector=%llu, err=%d, mirror=%u", bio->bi_iter.bi_sector, bio->bi_status, - io_bio->mirror_num); + lbio->mirror_num); tree = &BTRFS_I(inode)->io_tree; failure_tree = &BTRFS_I(inode)->io_failure_tree; @@ -3028,14 +3028,14 @@ static void end_bio_extent_readpage(struct bio *bio) end = start + bvec->bv_len - 1; len = bvec->bv_len; - mirror = io_bio->mirror_num; + mirror = lbio->mirror_num; if (likely(uptodate)) { if (is_data_inode(inode)) { - error_bitmap = btrfs_verify_data_csum(io_bio, + error_bitmap = btrfs_verify_data_csum(lbio, bio_offset, page, start, end); ret = error_bitmap; } else { - ret = btrfs_validate_metadata_buffer(io_bio, + ret = btrfs_validate_metadata_buffer(lbio, page, start, end, mirror); } if (ret) @@ -3106,7 +3106,7 @@ static void end_bio_extent_readpage(struct bio *bio) } /* Release the last extent */ endio_readpage_release_extent(&processed, NULL, 0, 0, false); - btrfs_io_bio_free_csum(io_bio); + btrfs_logical_bio_free_csum(lbio); bio_put(bio); } @@ -3115,9 +3115,9 @@ static void end_bio_extent_readpage(struct bio *bio) * new bio by bio_alloc_bioset as it does not initialize the bytes outside of * 'bio' because use of __GFP_ZERO is not supported. */ -static inline void btrfs_io_bio_init(struct btrfs_io_bio *btrfs_bio) +static inline void btrfs_logical_bio_init(struct btrfs_logical_bio *lbio) { - memset(btrfs_bio, 0, offsetof(struct btrfs_io_bio, bio)); + memset(lbio, 0, offsetof(struct btrfs_logical_bio, bio)); } /* @@ -3129,7 +3129,7 @@ static inline void btrfs_io_bio_init(struct btrfs_io_bio *btrfs_bio) * This helper uses bioset to allocate the bio, thus it's backed by mempool, * and should not fail from process contexts. */ -struct bio *btrfs_io_bio_alloc(unsigned int nr_iovecs) +struct bio *btrfs_logical_bio_alloc(unsigned int nr_iovecs) { struct bio *bio; @@ -3137,27 +3137,28 @@ struct bio *btrfs_io_bio_alloc(unsigned int nr_iovecs) if (nr_iovecs == 0) nr_iovecs = BIO_MAX_VECS; bio = bio_alloc_bioset(GFP_NOFS, nr_iovecs, &btrfs_bioset); - btrfs_io_bio_init(btrfs_io_bio(bio)); + btrfs_logical_bio_init(btrfs_logical_bio(bio)); return bio; } -struct bio *btrfs_bio_clone(struct bio *bio) +struct bio *btrfs_logical_bio_clone(struct bio *bio) { - struct btrfs_io_bio *btrfs_bio; + struct btrfs_logical_bio *lbio; struct bio *new; /* Bio allocation backed by a bioset does not fail */ new = bio_clone_fast(bio, GFP_NOFS, &btrfs_bioset); - btrfs_bio = btrfs_io_bio(new); - btrfs_io_bio_init(btrfs_bio); - btrfs_bio->iter = bio->bi_iter; + lbio = btrfs_logical_bio(new); + btrfs_logical_bio_init(lbio); + lbio->iter = bio->bi_iter; return new; } -struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size) +struct bio *btrfs_logical_bio_clone_partial(struct bio *orig, u64 offset, + u64 size) { struct bio *bio; - struct btrfs_io_bio *btrfs_bio; + struct btrfs_logical_bio *lbio; ASSERT(offset <= UINT_MAX && size <= UINT_MAX); @@ -3165,11 +3166,11 @@ struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size) bio = bio_clone_fast(orig, GFP_NOFS, &btrfs_bioset); ASSERT(bio); - btrfs_bio = btrfs_io_bio(bio); - btrfs_io_bio_init(btrfs_bio); + lbio = btrfs_logical_bio(bio); + btrfs_logical_bio_init(lbio); bio_trim(bio, offset >> 9, size >> 9); - btrfs_bio->iter = bio->bi_iter; + lbio->iter = bio->bi_iter; return bio; } @@ -3303,7 +3304,7 @@ static int alloc_new_bio(struct btrfs_inode *inode, struct bio *bio; int ret; - bio = btrfs_io_bio_alloc(0); + bio = btrfs_logical_bio_alloc(0); /* * For compressed page range, its disk_bytenr is always @disk_bytenr * passed in, no matter if we have added any range into previous bio. @@ -3338,7 +3339,7 @@ static int alloc_new_bio(struct btrfs_inode *inode, goto error; } - btrfs_io_bio(bio)->device = device; + btrfs_logical_bio(bio)->device = device; } return 0; error: diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 81fa68eaa699..7eac8536b162 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -278,9 +278,10 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end); void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end, struct page *locked_page, u32 bits_to_clear, unsigned long page_ops); -struct bio *btrfs_io_bio_alloc(unsigned int nr_iovecs); -struct bio *btrfs_bio_clone(struct bio *bio); -struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size); +struct bio *btrfs_logical_bio_alloc(unsigned int nr_iovecs); +struct bio *btrfs_logical_bio_clone(struct bio *bio); +struct bio *btrfs_logical_bio_clone_partial(struct bio *orig, u64 offset, + u64 size); void end_extent_writepage(struct page *page, int err, u64 start, u64 end); int btrfs_repair_eb_io_failure(const struct extent_buffer *eb, int mirror_num); diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 2673c6ba7a4e..6e788eb3c689 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -358,7 +358,7 @@ static int search_file_offset_in_bio(struct bio *bio, struct inode *inode, * @dst: Buffer of size nblocks * btrfs_super_csum_size() used to return * checksum (nblocks = bio->bi_iter.bi_size / fs_info->sectorsize). If * NULL, the checksum buffer is allocated and returned in - * btrfs_io_bio(bio)->csum instead. + * btrfs_bio(bio)->csum instead. * * Return: BLK_STS_RESOURCE if allocating memory fails, BLK_STS_OK otherwise. */ @@ -397,19 +397,19 @@ blk_status_t btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, u8 *dst return BLK_STS_RESOURCE; if (!dst) { - struct btrfs_io_bio *btrfs_bio = btrfs_io_bio(bio); + struct btrfs_logical_bio *logical_bio = btrfs_logical_bio(bio); if (nblocks * csum_size > BTRFS_BIO_INLINE_CSUM_SIZE) { - btrfs_bio->csum = kmalloc_array(nblocks, csum_size, + logical_bio->csum = kmalloc_array(nblocks, csum_size, GFP_NOFS); - if (!btrfs_bio->csum) { + if (!logical_bio->csum) { btrfs_free_path(path); return BLK_STS_RESOURCE; } } else { - btrfs_bio->csum = btrfs_bio->csum_inline; + logical_bio->csum = logical_bio->csum_inline; } - csum = btrfs_bio->csum; + csum = logical_bio->csum; } else { csum = dst; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index a3ce50289888..52d8d5c9bab1 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3212,7 +3212,7 @@ void btrfs_writepage_endio_finish_ordered(struct btrfs_inode *inode, * * The length of such check is always one sector size. */ -static int check_data_csum(struct inode *inode, struct btrfs_io_bio *io_bio, +static int check_data_csum(struct inode *inode, struct btrfs_logical_bio *lbio, u32 bio_offset, struct page *page, u32 pgoff, u64 start) { @@ -3228,7 +3228,7 @@ static int check_data_csum(struct inode *inode, struct btrfs_io_bio *io_bio, ASSERT(pgoff + len <= PAGE_SIZE); offset_sectors = bio_offset >> fs_info->sectorsize_bits; - csum_expected = ((u8 *)io_bio->csum) + offset_sectors * csum_size; + csum_expected = ((u8 *)lbio->csum) + offset_sectors * csum_size; kaddr = kmap_atomic(page); shash->tfm = fs_info->csum_shash; @@ -3242,9 +3242,9 @@ static int check_data_csum(struct inode *inode, struct btrfs_io_bio *io_bio, return 0; zeroit: btrfs_print_data_csum_error(BTRFS_I(inode), start, csum, csum_expected, - io_bio->mirror_num); - if (io_bio->device) - btrfs_dev_stat_inc_and_print(io_bio->device, + lbio->mirror_num); + if (lbio->device) + btrfs_dev_stat_inc_and_print(lbio->device, BTRFS_DEV_STAT_CORRUPTION_ERRS); memset(kaddr + pgoff, 1, len); flush_dcache_page(page); @@ -3264,8 +3264,9 @@ static int check_data_csum(struct inode *inode, struct btrfs_io_bio *io_bio, * Return a bitmap where bit set means a csum mismatch, and bit not set means * csum match. */ -unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset, - struct page *page, u64 start, u64 end) +unsigned int btrfs_verify_data_csum(struct btrfs_logical_bio *lbio, + u32 bio_offset, struct page *page, + u64 start, u64 end) { struct inode *inode = page->mapping->host; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; @@ -3283,14 +3284,14 @@ unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset, * For subpage case, above PageChecked is not safe as it's not subpage * compatible. * But for now only cow fixup and compressed read utilize PageChecked - * flag, while in this context we can easily use io_bio->csum to + * flag, while in this context we can easily use lbio->csum to * determine if we really need to do csum verification. * - * So for now, just exit if io_bio->csum is NULL, as it means it's + * So for now, just exit if lbio->csum is NULL, as it means it's * compressed read, and its compressed data csum has already been * verified. */ - if (io_bio->csum == NULL) + if (lbio->csum == NULL) return 0; if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM) @@ -3317,7 +3318,7 @@ unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset, EXTENT_NODATASUM); continue; } - ret = check_data_csum(inode, io_bio, bio_offset, page, pg_off, + ret = check_data_csum(inode, lbio, bio_offset, page, pg_off, page_offset(page) + pg_off); if (ret < 0) { const int nr_bit = (pg_off - offset_in_page(start)) >> @@ -8077,7 +8078,7 @@ static blk_status_t submit_dio_repair_bio(struct inode *inode, struct bio *bio, } static blk_status_t btrfs_check_read_dio_bio(struct inode *inode, - struct btrfs_io_bio *io_bio, + struct btrfs_logical_bio *lbio, const bool uptodate) { struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; @@ -8087,11 +8088,11 @@ static blk_status_t btrfs_check_read_dio_bio(struct inode *inode, const bool csum = !(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM); struct bio_vec bvec; struct bvec_iter iter; - u64 start = io_bio->logical; + u64 start = lbio->logical; u32 bio_offset = 0; blk_status_t err = BLK_STS_OK; - __bio_for_each_segment(bvec, &io_bio->bio, iter, io_bio->iter) { + __bio_for_each_segment(bvec, &lbio->bio, iter, lbio->iter) { unsigned int i, nr_sectors, pgoff; nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec.bv_len); @@ -8099,7 +8100,7 @@ static blk_status_t btrfs_check_read_dio_bio(struct inode *inode, for (i = 0; i < nr_sectors; i++) { ASSERT(pgoff < PAGE_SIZE); if (uptodate && - (!csum || !check_data_csum(inode, io_bio, + (!csum || !check_data_csum(inode, lbio, bio_offset, bvec.bv_page, pgoff, start))) { clean_io_failure(fs_info, failure_tree, io_tree, @@ -8109,12 +8110,12 @@ static blk_status_t btrfs_check_read_dio_bio(struct inode *inode, } else { int ret; - ASSERT((start - io_bio->logical) < UINT_MAX); + ASSERT((start - lbio->logical) < UINT_MAX); ret = btrfs_repair_one_sector(inode, - &io_bio->bio, - start - io_bio->logical, + &lbio->bio, + start - lbio->logical, bvec.bv_page, pgoff, - start, io_bio->mirror_num, + start, lbio->mirror_num, submit_dio_repair_bio); if (ret) err = errno_to_blk_status(ret); @@ -8156,8 +8157,8 @@ static void btrfs_end_dio_bio(struct bio *bio) bio->bi_iter.bi_size, err); if (bio_op(bio) == REQ_OP_READ) { - err = btrfs_check_read_dio_bio(dip->inode, btrfs_io_bio(bio), - !err); + err = btrfs_check_read_dio_bio(dip->inode, + btrfs_logical_bio(bio), !err); } if (err) @@ -8208,7 +8209,7 @@ static inline blk_status_t btrfs_submit_dio_bio(struct bio *bio, csum_offset = file_offset - dip->logical_offset; csum_offset >>= fs_info->sectorsize_bits; csum_offset *= fs_info->csum_size; - btrfs_io_bio(bio)->csum = dip->csums + csum_offset; + btrfs_logical_bio(bio)->csum = dip->csums + csum_offset; } map: ret = btrfs_map_bio(fs_info, bio, 0); @@ -8320,10 +8321,11 @@ static blk_qc_t btrfs_submit_direct(struct inode *inode, struct iomap *iomap, * This will never fail as it's passing GPF_NOFS and * the allocation is backed by btrfs_bioset. */ - bio = btrfs_bio_clone_partial(dio_bio, clone_offset, clone_len); + bio = btrfs_logical_bio_clone_partial(dio_bio, clone_offset, + clone_len); bio->bi_private = dip; bio->bi_end_io = btrfs_end_dio_bio; - btrfs_io_bio(bio)->logical = file_offset; + btrfs_logical_bio(bio)->logical = file_offset; if (bio_op(bio) == REQ_OP_ZONE_APPEND) { status = extract_ordered_extent(BTRFS_I(inode), bio, diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 96c149416f99..705e2f243459 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1104,8 +1104,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio, } /* put a new bio on the list */ - bio = btrfs_io_bio_alloc(bio_max_len >> PAGE_SHIFT ?: 1); - btrfs_io_bio(bio)->device = stripe->dev; + bio = btrfs_logical_bio_alloc(bio_max_len >> PAGE_SHIFT ?: 1); + btrfs_logical_bio(bio)->device = stripe->dev; bio->bi_iter.bi_size = 0; bio_set_dev(bio, stripe->dev->bdev); bio->bi_iter.bi_sector = disk_start >> 9; @@ -1158,7 +1158,7 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio) page_index = stripe_offset >> PAGE_SHIFT; if (bio_flagged(bio, BIO_CLONED)) - bio->bi_iter = btrfs_io_bio(bio)->iter; + bio->bi_iter = btrfs_logical_bio(bio)->iter; bio_for_each_segment(bvec, bio, iter) { rbio->bio_pages[page_index + i] = bvec.bv_page; @@ -2124,7 +2124,7 @@ int raid56_parity_recover(struct btrfs_fs_info *fs_info, struct bio *bio, if (generic_io) { ASSERT(bioc->mirror_num == mirror_num); - btrfs_io_bio(bio)->mirror_num = mirror_num; + btrfs_logical_bio(bio)->mirror_num = mirror_num; } rbio = alloc_rbio(fs_info, bioc, stripe_len); diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index bd38e32ef5dc..c1dfe7f3ace6 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1423,7 +1423,7 @@ static void scrub_recheck_block_on_raid56(struct btrfs_fs_info *fs_info, if (!first_page->dev->bdev) goto out; - bio = btrfs_io_bio_alloc(BIO_MAX_VECS); + bio = btrfs_logical_bio_alloc(0); bio_set_dev(bio, first_page->dev->bdev); for (page_num = 0; page_num < sblock->page_count; page_num++) { @@ -1480,7 +1480,7 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info, } WARN_ON(!spage->page); - bio = btrfs_io_bio_alloc(1); + bio = btrfs_logical_bio_alloc(1); bio_set_dev(bio, spage->dev->bdev); bio_add_page(bio, spage->page, fs_info->sectorsize, 0); @@ -1562,7 +1562,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, return -EIO; } - bio = btrfs_io_bio_alloc(1); + bio = btrfs_logical_bio_alloc(1); bio_set_dev(bio, spage_bad->dev->bdev); bio->bi_iter.bi_sector = spage_bad->physical >> 9; bio->bi_opf = REQ_OP_WRITE; @@ -1676,7 +1676,7 @@ static int scrub_add_page_to_wr_bio(struct scrub_ctx *sctx, sbio->dev = sctx->wr_tgtdev; bio = sbio->bio; if (!bio) { - bio = btrfs_io_bio_alloc(sctx->pages_per_wr_bio); + bio = btrfs_logical_bio_alloc(sctx->pages_per_wr_bio); sbio->bio = bio; } @@ -2102,7 +2102,7 @@ static int scrub_add_page_to_rd_bio(struct scrub_ctx *sctx, sbio->dev = spage->dev; bio = sbio->bio; if (!bio) { - bio = btrfs_io_bio_alloc(sctx->pages_per_rd_bio); + bio = btrfs_logical_bio_alloc(sctx->pages_per_rd_bio); sbio->bio = bio; } @@ -2226,7 +2226,7 @@ static void scrub_missing_raid56_pages(struct scrub_block *sblock) goto bioc_out; } - bio = btrfs_io_bio_alloc(0); + bio = btrfs_logical_bio_alloc(0); bio->bi_iter.bi_sector = logical >> 9; bio->bi_private = sblock; bio->bi_end_io = scrub_missing_raid56_end_io; @@ -2842,7 +2842,7 @@ static void scrub_parity_check_and_repair(struct scrub_parity *sparity) if (ret || !bioc || !bioc->raid_map) goto bioc_out; - bio = btrfs_io_bio_alloc(0); + bio = btrfs_logical_bio_alloc(0); bio->bi_iter.bi_sector = sparity->logic_start >> 9; bio->bi_private = sparity; bio->bi_end_io = scrub_parity_bio_endio; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 592d19f95065..9c609ed2606f 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6561,7 +6561,7 @@ static void btrfs_end_bio(struct bio *bio) atomic_inc(&bioc->error); if (bio->bi_status == BLK_STS_IOERR || bio->bi_status == BLK_STS_TARGET) { - struct btrfs_device *dev = btrfs_io_bio(bio)->device; + struct btrfs_device *dev = btrfs_logical_bio(bio)->device; ASSERT(dev->bdev); if (btrfs_op(bio) == BTRFS_MAP_WRITE) @@ -6587,7 +6587,7 @@ static void btrfs_end_bio(struct bio *bio) bio = bioc->orig_bio; } - btrfs_io_bio(bio)->mirror_num = bioc->mirror_num; + btrfs_logical_bio(bio)->mirror_num = bioc->mirror_num; /* only send an error to the higher layers if it is * beyond the tolerance of the btrfs bio */ @@ -6613,7 +6613,7 @@ static void submit_stripe_bio(struct btrfs_io_context *bioc, struct bio *bio, struct btrfs_fs_info *fs_info = bioc->fs_info; bio->bi_private = bioc; - btrfs_io_bio(bio)->device = dev; + btrfs_logical_bio(bio)->device = dev; bio->bi_end_io = btrfs_end_bio; bio->bi_iter.bi_sector = physical >> 9; /* @@ -6649,7 +6649,7 @@ static void bioc_error(struct btrfs_io_context *bioc, struct bio *bio, u64 logic /* Should be the original bio. */ WARN_ON(bio != bioc->orig_bio); - btrfs_io_bio(bio)->mirror_num = bioc->mirror_num; + btrfs_logical_bio(bio)->mirror_num = bioc->mirror_num; bio->bi_iter.bi_sector = logical >> 9; if (atomic_read(&bioc->error) > bioc->max_errors) bio->bi_status = BLK_STS_IOERR; @@ -6724,7 +6724,7 @@ blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio, } if (dev_nr < total_devs - 1) - bio = btrfs_bio_clone(first_bio); + bio = btrfs_logical_bio_clone(first_bio); else bio = first_bio; diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index b69755fc0e0d..6b0edca6ed2a 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -304,38 +304,37 @@ struct btrfs_fs_devices { / sizeof(struct btrfs_stripe) + 1) /* - * we need the mirror number and stripe index to be passed around - * the call chain while we are processing end_io (especially errors). - * Really, what we need is a btrfs_io_context structure that has this info - * and is properly sized with its stripe array, but we're not there - * quite yet. We have our own btrfs bioset, and all of the bios - * we allocate are actually btrfs_io_bios. We'll cram as much of - * struct btrfs_io_context as we can into this over time. + * Extra info to pass along bio. + * + * Mostly for btrfs specific feature like csum and mirror_num. */ -struct btrfs_io_bio { +struct btrfs_logical_bio { unsigned int mirror_num; + + /* @device is for stripe IO submission. */ struct btrfs_device *device; u64 logical; u8 *csum; u8 csum_inline[BTRFS_BIO_INLINE_CSUM_SIZE]; struct bvec_iter iter; + /* * This member must come last, bio_alloc_bioset will allocate enough - * bytes for entire btrfs_io_bio but relies on bio being last. + * bytes for entire btrfs_bio but relies on bio being last. */ struct bio bio; }; -static inline struct btrfs_io_bio *btrfs_io_bio(struct bio *bio) +static inline struct btrfs_logical_bio *btrfs_logical_bio(struct bio *bio) { - return container_of(bio, struct btrfs_io_bio, bio); + return container_of(bio, struct btrfs_logical_bio, bio); } -static inline void btrfs_io_bio_free_csum(struct btrfs_io_bio *io_bio) +static inline void btrfs_logical_bio_free_csum(struct btrfs_logical_bio *lbio) { - if (io_bio->csum != io_bio->csum_inline) { - kfree(io_bio->csum); - io_bio->csum = NULL; + if (lbio->csum != lbio->csum_inline) { + kfree(lbio->csum); + lbio->csum = NULL; } } -- 2.33.0