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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22A0EC678D6 for ; Tue, 10 Jan 2023 18:36:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239466AbjAJSgb (ORCPT ); Tue, 10 Jan 2023 13:36:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239509AbjAJSfj (ORCPT ); Tue, 10 Jan 2023 13:35:39 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0DA454DBC for ; Tue, 10 Jan 2023 10:31:19 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 898DCB81905 for ; Tue, 10 Jan 2023 18:31:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4481C433EF; Tue, 10 Jan 2023 18:31:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673375477; bh=QACbFCJd4t+Gb42iKf/qn3OgeQvXxzfYJCI8ir+8mZY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ageYkp2FPlRB9zUSi4st8+DC4q7EYH1nOK9wunQjQG2Hl3DcgHyjA9ef/35DQKwTx +STFzpF6+cw5vfaWeuC7e1q97vAzC/3Z+y6j3MSLNvfS+Wwr9OmIv1kfXJ7Qc5aDeR ey1/k/3H19nNqcrNinx1zZNpguLHLRjiFDq/U6no= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ye Bin , Theodore Tso , Eric Biggers Subject: [PATCH 5.15 170/290] ext4: factor out ext4_fc_get_tl() Date: Tue, 10 Jan 2023 19:04:22 +0100 Message-Id: <20230110180037.781665298@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230110180031.620810905@linuxfoundation.org> References: <20230110180031.620810905@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Eric Biggers From: Ye Bin commit dcc5827484d6e53ccda12334f8bbfafcc593ceda upstream. Factor out ext4_fc_get_tl() to fill 'tl' with host byte order. Signed-off-by: Ye Bin Link: https://lore.kernel.org/r/20220924075233.2315259-3-yebin10@huawei.com Signed-off-by: Theodore Ts'o Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- fs/ext4/fast_commit.c | 46 +++++++++++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 21 deletions(-) --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1271,7 +1271,7 @@ struct dentry_info_args { }; static inline void tl_to_darg(struct dentry_info_args *darg, - struct ext4_fc_tl *tl, u8 *val) + struct ext4_fc_tl *tl, u8 *val) { struct ext4_fc_dentry_info fcd; @@ -1280,8 +1280,14 @@ static inline void tl_to_darg(struct den darg->parent_ino = le32_to_cpu(fcd.fc_parent_ino); darg->ino = le32_to_cpu(fcd.fc_ino); darg->dname = val + offsetof(struct ext4_fc_dentry_info, fc_dname); - darg->dname_len = le16_to_cpu(tl->fc_len) - - sizeof(struct ext4_fc_dentry_info); + darg->dname_len = tl->fc_len - sizeof(struct ext4_fc_dentry_info); +} + +static inline void ext4_fc_get_tl(struct ext4_fc_tl *tl, u8 *val) +{ + memcpy(tl, val, EXT4_FC_TAG_BASE_LEN); + tl->fc_len = le16_to_cpu(tl->fc_len); + tl->fc_tag = le16_to_cpu(tl->fc_tag); } /* Unlink replay function */ @@ -1446,7 +1452,7 @@ static int ext4_fc_replay_inode(struct s struct ext4_inode *raw_fc_inode; struct inode *inode = NULL; struct ext4_iloc iloc; - int inode_len, ino, ret, tag = le16_to_cpu(tl->fc_tag); + int inode_len, ino, ret, tag = tl->fc_tag; struct ext4_extent_header *eh; memcpy(&fc_inode, val, sizeof(fc_inode)); @@ -1471,7 +1477,7 @@ static int ext4_fc_replay_inode(struct s if (ret) goto out; - inode_len = le16_to_cpu(tl->fc_len) - sizeof(struct ext4_fc_inode); + inode_len = tl->fc_len - sizeof(struct ext4_fc_inode); raw_inode = ext4_raw_inode(&iloc); memcpy(raw_inode, raw_fc_inode, offsetof(struct ext4_inode, i_block)); @@ -1958,12 +1964,12 @@ static int ext4_fc_replay_scan(journal_t state->fc_replay_expected_off++; for (cur = start; cur < end; - cur = cur + EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)) { - memcpy(&tl, cur, EXT4_FC_TAG_BASE_LEN); + cur = cur + EXT4_FC_TAG_BASE_LEN + tl.fc_len) { + ext4_fc_get_tl(&tl, cur); val = cur + EXT4_FC_TAG_BASE_LEN; ext4_debug("Scan phase, tag:%s, blk %lld\n", - tag2str(le16_to_cpu(tl.fc_tag)), bh->b_blocknr); - switch (le16_to_cpu(tl.fc_tag)) { + tag2str(tl.fc_tag), bh->b_blocknr); + switch (tl.fc_tag) { case EXT4_FC_TAG_ADD_RANGE: memcpy(&ext, val, sizeof(ext)); ex = (struct ext4_extent *)&ext.fc_ex; @@ -1983,7 +1989,7 @@ static int ext4_fc_replay_scan(journal_t case EXT4_FC_TAG_PAD: state->fc_cur_tag++; state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur, - EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)); + EXT4_FC_TAG_BASE_LEN + tl.fc_len); break; case EXT4_FC_TAG_TAIL: state->fc_cur_tag++; @@ -2016,7 +2022,7 @@ static int ext4_fc_replay_scan(journal_t } state->fc_cur_tag++; state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur, - EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)); + EXT4_FC_TAG_BASE_LEN + tl.fc_len); break; default: ret = state->fc_replay_num_tags ? @@ -2072,8 +2078,8 @@ static int ext4_fc_replay(journal_t *jou end = (__u8 *)bh->b_data + journal->j_blocksize - 1; for (cur = start; cur < end; - cur = cur + EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)) { - memcpy(&tl, cur, EXT4_FC_TAG_BASE_LEN); + cur = cur + EXT4_FC_TAG_BASE_LEN + tl.fc_len) { + ext4_fc_get_tl(&tl, cur); val = cur + EXT4_FC_TAG_BASE_LEN; if (state->fc_replay_num_tags == 0) { @@ -2081,10 +2087,9 @@ static int ext4_fc_replay(journal_t *jou ext4_fc_set_bitmaps_and_counters(sb); break; } - ext4_debug("Replay phase, tag:%s\n", - tag2str(le16_to_cpu(tl.fc_tag))); + ext4_debug("Replay phase, tag:%s\n", tag2str(tl.fc_tag)); state->fc_replay_num_tags--; - switch (le16_to_cpu(tl.fc_tag)) { + switch (tl.fc_tag) { case EXT4_FC_TAG_LINK: ret = ext4_fc_replay_link(sb, &tl, val); break; @@ -2105,19 +2110,18 @@ static int ext4_fc_replay(journal_t *jou break; case EXT4_FC_TAG_PAD: trace_ext4_fc_replay(sb, EXT4_FC_TAG_PAD, 0, - le16_to_cpu(tl.fc_len), 0); + tl.fc_len, 0); break; case EXT4_FC_TAG_TAIL: - trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL, 0, - le16_to_cpu(tl.fc_len), 0); + trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL, + 0, tl.fc_len, 0); memcpy(&tail, val, sizeof(tail)); WARN_ON(le32_to_cpu(tail.fc_tid) != expected_tid); break; case EXT4_FC_TAG_HEAD: break; default: - trace_ext4_fc_replay(sb, le16_to_cpu(tl.fc_tag), 0, - le16_to_cpu(tl.fc_len), 0); + trace_ext4_fc_replay(sb, tl.fc_tag, 0, tl.fc_len, 0); ret = -ECANCELED; break; }