From patchwork Tue Mar 2 11:38:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunlei He X-Patchwork-Id: 392609 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 B8B40C4161F for ; Wed, 3 Mar 2021 00:21:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A06A464FA9 for ; Wed, 3 Mar 2021 00:21:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233456AbhCCAPp (ORCPT ); Tue, 2 Mar 2021 19:15:45 -0500 Received: from zg8tmja2lje4os4yms4ymjma.icoremail.net ([206.189.21.223]:52035 "HELO zg8tmja2lje4os4yms4ymjma.icoremail.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1383767AbhCBMF6 (ORCPT ); Tue, 2 Mar 2021 07:05:58 -0500 Received: from pekshcsitd06010.hihonor.com (unknown [198.19.131.39]) by front-1 (Coremail) with SMTP id CwGowAAXf07LIz5gcsNOAA--.1848S2; Tue, 02 Mar 2021 19:38:52 +0800 (CST) From: Yunlei He To: chao@kernel.org, jaegeuk@kernel.org, ebiggers@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-fscrypt@vger.kernel.org, bintian.wang@hihonor.com, Yunlei He , stable@vger.kernel.org Subject: [f2fs-dev][PATCH] f2fs: fsverity: modify truncation for verity enable failed Date: Tue, 2 Mar 2021 19:38:50 +0800 Message-Id: <20210302113850.17011-1-heyunlei@hihonor.com> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: CwGowAAXf07LIz5gcsNOAA--.1848S2 X-Coremail-Antispam: 1UD129KBjvJXoWrtw47Xr1UCrW5ur4kGF45ZFb_yoW8JF17pF yDGFyUWw1rG3y7Wr1vvF1Uuw1rKFy7KrW2vFyDuw1kW3WkXwnYvayvyFW09a1aqr97Jw40 qr4UCa9rCr17Ar7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkE1xkIjI8I6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AE w4v_Jrv_JF1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2 IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW0oVCq3wA2z4x0Y4vEx4A2 jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS0I0E0xvYzxvE52 x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUtVWr XwAv7VC2z280aVAFwI0_Cr1j6rxdMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwACjI8F5VA0II8E6IAqYI8I648v4I1lc2xSY4AK6svPMxAIw28IcxkI7VAKI48JMxAI w28IcVCjz48v1sIEY20_XFWUJr1UMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrV AFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCI c40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267 AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_WFyUJVCq3wCI42IY6I8E87Iv67AKxVWU JVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x0JUA8n 5UUUUU= X-CM-SenderInfo: pkh130hohlqxxlkr003uof0z/1tbiAQIKEV3ki2sD+gABs5 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org If file enable verity failed, should truncate anything wrote past i_size, including cache pages. Move the truncation to the end of function, in case of f2fs set xattr failed. Fixes: 95ae251fe828 ("f2fs: add fs-verity support") Cc: # v5.4+ Signed-off-by: Yunlei He --- fs/f2fs/verity.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c index 054ec852b5ea..610f2a9b4928 100644 --- a/fs/f2fs/verity.c +++ b/fs/f2fs/verity.c @@ -169,10 +169,6 @@ static int f2fs_end_enable_verity(struct file *filp, const void *desc, err = filemap_write_and_wait(inode->i_mapping); } - /* If we failed, truncate anything we wrote past i_size. */ - if (desc == NULL || err) - f2fs_truncate(inode); - clear_inode_flag(inode, FI_VERITY_IN_PROGRESS); if (desc != NULL && !err) { @@ -185,6 +181,13 @@ static int f2fs_end_enable_verity(struct file *filp, const void *desc, f2fs_mark_inode_dirty_sync(inode, true); } } + + /* If we failed, truncate anything we wrote past i_size. */ + if (desc == NULL || err) { + truncate_inode_pages(inode->i_mapping, inode->i_size); + f2fs_truncate(inode); + } + return err; }