From patchwork Thu Jul 19 11:05:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Sterba X-Patchwork-Id: 10534175 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D7B1A601D2 for ; Thu, 19 Jul 2018 11:05:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7FC3293D5 for ; Thu, 19 Jul 2018 11:05:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BC7F0293F7; Thu, 19 Jul 2018 11:05:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E245293D5 for ; Thu, 19 Jul 2018 11:05:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727507AbeGSLsI (ORCPT ); Thu, 19 Jul 2018 07:48:08 -0400 Received: from mx2.suse.de ([195.135.220.15]:55482 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731154AbeGSLsI (ORCPT ); Thu, 19 Jul 2018 07:48:08 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C54EBACAA for ; Thu, 19 Jul 2018 11:05:27 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 59AC5DABB4; Thu, 19 Jul 2018 13:05:21 +0200 (CEST) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH 6/7] btrfs: drop extent_io_ops::merge_bio_hook callback Date: Thu, 19 Jul 2018 13:05:21 +0200 Message-Id: <0e2c838370aab0b2da788a4c88174ec50979fc4c.1531996240.git.dsterba@suse.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The data and metadata callback implementation both use the same function. We can remove the call indirection completely. Signed-off-by: David Sterba --- fs/btrfs/compression.c | 10 +++------- fs/btrfs/disk-io.c | 2 -- fs/btrfs/extent_io.c | 4 ++-- fs/btrfs/extent_io.h | 3 --- fs/btrfs/inode.c | 5 ++--- 5 files changed, 7 insertions(+), 17 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 70dace47258b..9bfa66592aa7 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -299,7 +299,6 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start, struct bio *bio = NULL; struct compressed_bio *cb; unsigned long bytes_left; - struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; int pg_index = 0; struct page *page; u64 first_byte = disk_start; @@ -338,9 +337,7 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start, page = compressed_pages[pg_index]; page->mapping = inode->i_mapping; if (bio->bi_iter.bi_size) - submit = io_tree->ops->merge_bio_hook(page, 0, - PAGE_SIZE, - bio, 0); + submit = btrfs_merge_bio_hook(page, 0, PAGE_SIZE, bio, 0); page->mapping = NULL; if (submit || bio_add_page(bio, page, PAGE_SIZE, 0) < @@ -622,9 +619,8 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, page->index = em_start >> PAGE_SHIFT; if (comp_bio->bi_iter.bi_size) - submit = tree->ops->merge_bio_hook(page, 0, - PAGE_SIZE, - comp_bio, 0); + submit = btrfs_merge_bio_hook(page, 0, PAGE_SIZE, + comp_bio, 0); page->mapping = NULL; if (submit || bio_add_page(comp_bio, page, PAGE_SIZE, 0) < diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index d6c04933abbc..31ab764cf4e3 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -4527,8 +4527,6 @@ static const struct extent_io_ops btree_extent_io_ops = { /* mandatory callbacks */ .submit_bio_hook = btree_submit_bio_hook, .readpage_end_io_hook = btree_readpage_end_io_hook, - /* note we're sharing with inode.c for the merge bio hook */ - .merge_bio_hook = btrfs_merge_bio_hook, .readpage_io_failed_hook = btree_io_failed_hook, .set_range_writeback = btrfs_set_range_writeback, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index f7a138278f16..55a845621f85 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2784,8 +2784,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree, else contig = bio_end_sector(bio) == sector; - if (tree->ops && tree->ops->merge_bio_hook(page, offset, - page_size, bio, bio_flags)) + if (tree->ops && btrfs_merge_bio_hook(page, offset, page_size, + bio, bio_flags)) can_merge = false; if (prev_bio_flags != bio_flags || !contig || !can_merge || diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 6edbe01fd09d..ec7c4a2982d0 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -101,9 +101,6 @@ struct extent_io_ops { int (*readpage_end_io_hook)(struct btrfs_io_bio *io_bio, u64 phy_offset, struct page *page, u64 start, u64 end, int mirror); - int (*merge_bio_hook)(struct page *page, unsigned long offset, - size_t size, struct bio *bio, - unsigned long bio_flags); int (*readpage_io_failed_hook)(struct page *page, int failed_mirror); void (*set_range_writeback)(void *private_data, u64 start, u64 end); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1614551cf953..845621a71468 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1893,8 +1893,8 @@ static void btrfs_clear_bit_hook(void *private_data, } /* - * extent_io.c merge_bio_hook, this must check the chunk tree to make sure - * we don't create bios that span stripes or chunks + * Merge bio hook, this must check the chunk tree to make sure we don't create + * bios that span stripes or chunks * * return 1 if page cannot be merged to bio * return 0 if page can be merged to bio @@ -10540,7 +10540,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = { /* mandatory callbacks */ .submit_bio_hook = btrfs_submit_bio_hook, .readpage_end_io_hook = btrfs_readpage_end_io_hook, - .merge_bio_hook = btrfs_merge_bio_hook, .readpage_io_failed_hook = btrfs_readpage_io_failed_hook, .set_range_writeback = btrfs_set_range_writeback,