From nobody Sat Feb 7 22:54:46 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95231C77B7C for ; Wed, 24 May 2023 06:42:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239493AbjEXGmb (ORCPT ); Wed, 24 May 2023 02:42:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239561AbjEXGlw (ORCPT ); Wed, 24 May 2023 02:41:52 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E35E41BFD for ; Tue, 23 May 2023 23:40:08 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-2532d6c7ef2so4271613a91.0 for ; Tue, 23 May 2023 23:40:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684910402; x=1687502402; h=message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zn7OMSsYSCX/rc9bjAKI2reLL+5RLLeTJ6anC4INbJ0=; b=Blwwm5MxBGo/l24/gdA8zXS9W/9IYhXx34COU9v3rz8YFOVDy2GHAXNVZcNMzpSnIK Mv272aeEWdy1CQnzZq5279bTNcxPbDD7p4vzgxuS8yectKxfFvkGhGTT3kSTG8IrLjrK 4fsl2Nzo070iVYcV/5Mjga7zFtuVO9F+nI9bHPFoCKststHCwHycrcjphZm2Tw4zXSaT vYHPlJ1Ab77O6sRhciRy7X6TBmixbxj5TKEpdil8L4LfgdslllMPXhM/iU4v/iBOqjeg 28Jz3qeU354e8vdzhp4k8zq80LVv8t1O8XqMTMV1XfVGlx5wquzllD824PHLsBKYYxa8 2YOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684910402; x=1687502402; h=message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zn7OMSsYSCX/rc9bjAKI2reLL+5RLLeTJ6anC4INbJ0=; b=Cyd9ANN/Pu6AgNKEwt2VII15b9GOnv54TxljPky/pazUr0pYJgUkuipRy1IgjgmJx1 dV9D52XOqE0I92Om1Wnkaadg5+hm2aYdZIxGmTCYBR21WRx2bpHgIIZktx1H27xXD33P 95AVvgJSrMNh3Lx7gMsv15l/s0ACvgYHy76NXMX5P/kNzcCGnEagE6gP0yr1xzlcfClh hHz2+vdSVxOwiHYSUe/JB8J+FdqSEguX7JDR/mXfbQ8McsSj0Pwz7fMUHVM/J7uTZiGD +583FikSXBSMWgHxMBsuDT1Dg4tdAu7OeEODOczGsY1/Phyj++2WO0dLY7LyW7GQsN4q wuMQ== X-Gm-Message-State: AC+VfDzW2wxnhjrITd3kLEXkLoArsGXAWGVhZR2ovIwJpOHxuIbnszSL b+x+t/ppa6TiDKAt3Nb906K3WCHBnes= X-Google-Smtp-Source: ACHHUZ54QbswgzWqbpMWpc5kcmKJu0sCpoDIcGaCEWvL6mfDinJ4GzW4yBfgfVCjieyPrS/gupcpTA== X-Received: by 2002:a17:90a:1b2b:b0:24e:2759:8dbe with SMTP id q40-20020a17090a1b2b00b0024e27598dbemr18040657pjq.7.1684910402282; Tue, 23 May 2023 23:40:02 -0700 (PDT) Received: from localhost.localdomain ([156.236.96.165]) by smtp.gmail.com with ESMTPSA id 4-20020a630904000000b00534514bc08bsm6947515pgj.64.2023.05.23.23.40.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 May 2023 23:40:01 -0700 (PDT) From: Yue Hu To: xiang@kernel.org, chao@kernel.org, jefflexu@linux.alibaba.com, linux-erofs@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, huyue2@coolpad.com, zhangwen@coolpad.com Subject: [PATCH v2] erofs: remove the member readahead from struct z_erofs_decompress_frontend Date: Wed, 24 May 2023 14:39:44 +0800 Message-Id: <20230524063944.1655-1-zbestahu@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Yue Hu The struct member is only used to add REQ_RAHEAD during I/O submission. So it is cleaner to pass it as a parameter than keep it in the struct. Also, rename function z_erofs_get_sync_decompress_policy() to z_erofs_is_sync_decompress() for better clarity and conciseness. Signed-off-by: Yue Hu Reviewed-by: Gao Xiang --- v2: readahead -> ra in z_erofs_runqueue() fs/erofs/zdata.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c index 45f21db2303a..5cd971bcf95e 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -550,7 +550,6 @@ struct z_erofs_decompress_frontend { z_erofs_next_pcluster_t owned_head; enum z_erofs_pclustermode mode; =20 - bool readahead; /* used for applying cache strategy on the fly */ bool backmost; erofs_off_t headoffset; @@ -1106,7 +1105,7 @@ static int z_erofs_do_read_page(struct z_erofs_decomp= ress_frontend *fe, return err; } =20 -static bool z_erofs_get_sync_decompress_policy(struct erofs_sb_info *sbi, +static bool z_erofs_is_sync_decompress(struct erofs_sb_info *sbi, unsigned int readahead_pages) { /* auto: enable for read_folio, disable for readahead */ @@ -1672,7 +1671,7 @@ static void z_erofs_decompressqueue_endio(struct bio = *bio) static void z_erofs_submit_queue(struct z_erofs_decompress_frontend *f, struct page **pagepool, struct z_erofs_decompressqueue *fgq, - bool *force_fg) + bool *force_fg, bool readahead) { struct super_block *sb =3D f->inode->i_sb; struct address_space *mc =3D MNGD_MAPPING(EROFS_SB(sb)); @@ -1763,7 +1762,7 @@ static void z_erofs_submit_queue(struct z_erofs_decom= press_frontend *f, bio->bi_iter.bi_sector =3D (sector_t)cur << (sb->s_blocksize_bits - 9); bio->bi_private =3D q[JQ_SUBMIT]; - if (f->readahead) + if (readahead) bio->bi_opf |=3D REQ_RAHEAD; ++nr_bios; } @@ -1799,13 +1798,13 @@ static void z_erofs_submit_queue(struct z_erofs_dec= ompress_frontend *f, } =20 static void z_erofs_runqueue(struct z_erofs_decompress_frontend *f, - struct page **pagepool, bool force_fg) + struct page **pagepool, bool force_fg, bool ra) { struct z_erofs_decompressqueue io[NR_JOBQUEUES]; =20 if (f->owned_head =3D=3D Z_EROFS_PCLUSTER_TAIL) return; - z_erofs_submit_queue(f, pagepool, io, &force_fg); + z_erofs_submit_queue(f, pagepool, io, &force_fg, ra); =20 /* handle bypass queue (no i/o pclusters) immediately */ z_erofs_decompress_queue(&io[JQ_BYPASS], pagepool); @@ -1903,8 +1902,8 @@ static int z_erofs_read_folio(struct file *file, stru= ct folio *folio) (void)z_erofs_collector_end(&f); =20 /* if some compressed cluster ready, need submit them anyway */ - z_erofs_runqueue(&f, &pagepool, - z_erofs_get_sync_decompress_policy(sbi, 0)); + z_erofs_runqueue(&f, &pagepool, z_erofs_is_sync_decompress(sbi, 0), + false); =20 if (err) erofs_err(inode->i_sb, "failed to read, err [%d]", err); @@ -1922,7 +1921,6 @@ static void z_erofs_readahead(struct readahead_contro= l *rac) struct page *pagepool =3D NULL, *head =3D NULL, *page; unsigned int nr_pages; =20 - f.readahead =3D true; f.headoffset =3D readahead_pos(rac); =20 z_erofs_pcluster_readmore(&f, rac, f.headoffset + @@ -1953,7 +1951,7 @@ static void z_erofs_readahead(struct readahead_contro= l *rac) (void)z_erofs_collector_end(&f); =20 z_erofs_runqueue(&f, &pagepool, - z_erofs_get_sync_decompress_policy(sbi, nr_pages)); + z_erofs_is_sync_decompress(sbi, nr_pages), true); erofs_put_metabuf(&f.map.buf); erofs_release_pages(&pagepool); } --=20 2.17.1