From patchwork Wed Dec 1 05:17:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 12649079 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 9C367C4332F for ; Wed, 1 Dec 2021 05:18:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346726AbhLAFV5 (ORCPT ); Wed, 1 Dec 2021 00:21:57 -0500 Received: from smtp-out2.suse.de ([195.135.220.29]:37882 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346739AbhLAFVz (ORCPT ); Wed, 1 Dec 2021 00:21:55 -0500 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-out2.suse.de (Postfix) with ESMTPS id EF18C1FD2F; Wed, 1 Dec 2021 05:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1638335913; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iGoATI8QhpJQFUqpKLovdoPmLhCegyDIShiT0EoICN4=; b=HBk8iT1VcldRuyrVjDbwSVrmVOzKIq67TvNOSoVD8IKy2iMJIMDQ9UiZdDnS44OJn9/WmL Um9JqtEzAOi6GoMM7FYJ16WKNKm/Fv1un9IZfnoumjfxN9ZaC+ft5YW/kRp085qD3QWasY DQIDxVuJSMPLKLsf52bSIpRuFntVzIA= 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 F2D0513425; Wed, 1 Dec 2021 05:18:32 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 4HzNL6gFp2EGbwAAMHmgww (envelope-from ); Wed, 01 Dec 2021 05:18:32 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: linux-block@vger.kernel.org, dm-devel@redhat.com Subject: [PATCH 14/17] btrfs: remove buffered IO stripe boundary calculation Date: Wed, 1 Dec 2021 13:17:53 +0800 Message-Id: <20211201051756.53742-15-wqu@suse.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211201051756.53742-1-wqu@suse.com> References: <20211201051756.53742-1-wqu@suse.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org This will remove btrfs_bio_ctrl::len_to_stripe_boundary, so that buffer IO will no longer limits its bio size according to stripe length. This will move the bio split to btrfs_map_bio() for all buffered IO. Signed-off-by: Qu Wenruo --- fs/btrfs/extent_io.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8f5a1059a296..7fabf46312dd 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3301,7 +3301,7 @@ static int btrfs_bio_add_page(struct btrfs_bio_ctrl *bio_ctrl, ASSERT(bio); /* The limit should be calculated when bio_ctrl->bio is allocated */ - ASSERT(bio_ctrl->len_to_oe_boundary && bio_ctrl->len_to_stripe_boundary); + ASSERT(bio_ctrl->len_to_oe_boundary); if (bio_ctrl->bio_flags != bio_flags) return 0; @@ -3312,9 +3312,7 @@ static int btrfs_bio_add_page(struct btrfs_bio_ctrl *bio_ctrl, if (!contig) return 0; - real_size = min(bio_ctrl->len_to_oe_boundary, - bio_ctrl->len_to_stripe_boundary) - bio_size; - real_size = min(real_size, size); + real_size = min(bio_ctrl->len_to_oe_boundary - bio_size, size); /* * If real_size is 0, never call bio_add_*_page(), as even size is 0, @@ -3335,11 +3333,8 @@ static int calc_bio_boundaries(struct btrfs_bio_ctrl *bio_ctrl, struct btrfs_inode *inode, u64 file_offset) { struct btrfs_fs_info *fs_info = inode->root->fs_info; - struct btrfs_io_geometry geom; struct btrfs_ordered_extent *ordered; - struct extent_map *em; u64 logical = (bio_ctrl->bio->bi_iter.bi_sector << SECTOR_SHIFT); - int ret; /* * Pages for compressed extent are never submitted to disk directly, @@ -3350,22 +3345,8 @@ static int calc_bio_boundaries(struct btrfs_bio_ctrl *bio_ctrl, */ if (bio_ctrl->bio_flags & EXTENT_BIO_COMPRESSED) { bio_ctrl->len_to_oe_boundary = U32_MAX; - bio_ctrl->len_to_stripe_boundary = U32_MAX; return 0; } - em = btrfs_get_chunk_map(fs_info, logical, fs_info->sectorsize); - if (IS_ERR(em)) - return PTR_ERR(em); - ret = btrfs_get_io_geometry(fs_info, em, btrfs_op(bio_ctrl->bio), - logical, &geom); - free_extent_map(em); - if (ret < 0) { - return ret; - } - if (geom.len > U32_MAX) - bio_ctrl->len_to_stripe_boundary = U32_MAX; - else - bio_ctrl->len_to_stripe_boundary = (u32)geom.len; if (!btrfs_is_zoned(fs_info) || bio_op(bio_ctrl->bio) != REQ_OP_ZONE_APPEND) {