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=-11.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 9BD71C4363D for ; Wed, 23 Sep 2020 06:23:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 64A9D221E8 for ; Wed, 23 Sep 2020 06:23:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="f2YGCyUj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726676AbgIWGXv (ORCPT ); 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200921202909.GU6756@twin.jikos.cz> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 21.09.20 г. 23:29 ч., David Sterba wrote: > On Fri, Sep 18, 2020 at 04:34:36PM +0300, Nikolay Borisov wrote: >> Use the is_data_inode helper. >> >> Signed-off-by: Nikolay Borisov >> --- >> fs/btrfs/extent_io.c | 3 +-- >> 1 file changed, 1 insertion(+), 2 deletions(-) >> >> diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c >> index 6e976bd86600..26b002e2f3b3 100644 >> --- a/fs/btrfs/extent_io.c >> +++ b/fs/btrfs/extent_io.c >> @@ -2816,8 +2816,7 @@ static void end_bio_extent_readpage(struct bio *bio) >> struct page *page = bvec->bv_page; >> struct inode *inode = page->mapping->host; >> struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); >> - bool data_inode = btrfs_ino(BTRFS_I(inode)) >> - != BTRFS_BTREE_INODE_OBJECTID; >> + bool data_inode = is_data_inode(inode); > > I think you can remove the temporary variable and call is_data_inode > directly in the later code, there's only one use. > Actually it's used twice, yet I did an experiment to remove it and bloat-o-meter indicates it's a win to call the inline function twice: add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-161 (-161) Function old new delta end_bio_extent_readpage.cold 117 104 -13 end_bio_extent_readpage 1614 1466 -148 Total: Before=45527, After=45366, chg -0.35% diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index b5e00b62bcb1..0994fb56e39a 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2819,7 +2819,6 @@ static void end_bio_extent_readpage(struct bio *bio) struct page *page = bvec->bv_page; struct inode *inode = page->mapping->host; struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); - bool data_inode = is_data_inode(inode); btrfs_debug(fs_info, "end_bio_extent_readpage: bi_sector=%llu, err=%d, mirror=%u", @@ -2850,7 +2849,7 @@ static void end_bio_extent_readpage(struct bio *bio) mirror = io_bio->mirror_num; if (likely(uptodate)) { - if (data_inode) + if (is_data_inode(inode)) ret = btrfs_check_csum(io_bio, offset, page, start, end, mirror); else @@ -2868,7 +2867,7 @@ static void end_bio_extent_readpage(struct bio *bio) if (likely(uptodate)) goto readpage_ok; - if (data_inode) { + if (is_data_inode(inode)) { /* * The generic bio_readpage_error handles errors the So I will fold this into the next version.