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bh=idjQeAQ+JuVXml4ijJi5kHXXA3lP4ZQ+g5u5KohXUJ4=; b=Y+ggJL0uGOx3VneehbF2sqUOgz ZVv9GeBAcWhpFdv3Nk4tC/BTZ7qKPOku4GzKeOjXHqSd+wmgB9WzVev1fBU6y9IexOE4+44cMjJbZ p47Nm/UgA9REIltZjFr9zWAuERhLY4Z5oxk0BQPdOayPZ6t3R3rmODr0DUoulyjmy29E=; Received: from mail.kernel.org ([198.145.29.99]) by sfi-mx-3.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) id 1i4vrO-007kuk-ND for linux-f2fs-devel@lists.sourceforge.net; Mon, 02 Sep 2019 23:35:48 +0000 Received: from [192.168.0.102] (unknown [180.111.100.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 23642204EC; Mon, 2 Sep 2019 23:35:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567467341; bh=X4p78bk4rX3A3ZfcqzYO9O0uFPOSYZLmWhRZ8sFloU8=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=a3LIfORQ/heO80Bj8LPo8MOVp1VZ/fLibAGyH2m9lebIAFSlvuAFuFWhd2BfV2dqM A7r1bvrttuCPsH+/JU/dOACyg55fU+OvLyKgV/mug2onAjUSufog/u9NEx3oak8MDX T0KG9X6uf9juBRcuW/btkvrMd5hz3IIn1uuUV7w8= To: Jaegeuk Kim , Chao Yu References: <20190830153453.24684-1-jaegeuk@kernel.org> <20190901072529.GB49907@jaegeuk-macbookpro.roam.corp.google.com> <20190902230700.GE71929@jaegeuk-macbookpro.roam.corp.google.com> From: Chao Yu Message-ID: <65d05f5e-dffc-0b50-1463-b4b30315f014@kernel.org> Date: Tue, 3 Sep 2019 07:35:37 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190902230700.GE71929@jaegeuk-macbookpro.roam.corp.google.com> Content-Language: en-US X-Headers-End: 1i4vrO-007kuk-ND Subject: Re: [f2fs-dev] [PATCH] f2fs: convert inline_data in prior to i_size_write X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2019-9-3 7:07, Jaegeuk Kim wrote: > On 09/02, Chao Yu wrote: >> On 2019/9/1 15:25, Jaegeuk Kim wrote: >>> On 08/31, Chao Yu wrote: >>>> On 2019/8/30 23:34, Jaegeuk Kim wrote: >>>>> This can guarantee inline_data has smaller i_size. >>>> >>>> So I guess "f2fs: fix to avoid corruption during inline conversion" didn't fix >>>> such corruption right, I guess checkpoint & SPO before i_size recovery will >>>> cause this issue? >>>> >>>> err = f2fs_convert_inline_inode(inode); >>>> if (err) { >>>> >>>> --> >>> >>> Yup, I think so. >> >> Oh, we'd better to avoid wrong fixing patch as much as possible, so what about >> letting me change that patch to just fix error path of >> f2fs_convert_inline_page() by adding missing f2fs_truncate_data_blocks_range()? > > Could you post another patch? I'm okay to combine them. No problem, let merge them in v2. :) Thanks, > >> >> Meanwhile I need to add below 'Fixes' tag line: >> 7735730d39d7 ("f2fs: fix to propagate error from __get_meta_page()") >> >> >> And if possible, could you add: >> >> In below call path, if we failed to convert inline inode, inline inode may have >> wrong i_size which is larger than max inline size. >> - f2fs_setattr >> - truncate_setsize >> - f2fs_convert_inline_inode >> >> Fixes: 0cab80ee0c9e ("f2fs: fix to convert inline inode in ->setattr") >> >>> >>>> >>>> /* recover old i_size */ >>>> i_size_write(inode, old_size); >>>> return err; >>>> >>>>> >>>>> Signed-off-by: Jaegeuk Kim >>>> >>>> Reviewed-by: Chao Yu >>>> >>>>> --- >>>>> fs/f2fs/file.c | 25 +++++++++---------------- >>>>> 1 file changed, 9 insertions(+), 16 deletions(-) >>>>> >>>>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c >>>>> index 08caaead6f16..a43193dd27cb 100644 >>>>> --- a/fs/f2fs/file.c >>>>> +++ b/fs/f2fs/file.c >>>>> @@ -815,14 +815,20 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) >>>>> >>>>> if (attr->ia_valid & ATTR_SIZE) { >>>>> loff_t old_size = i_size_read(inode); >>>>> - bool to_smaller = (attr->ia_size <= old_size); >>>>> + >>>>> + if (attr->ia_size > MAX_INLINE_DATA(inode)) { >>>>> + /* should convert inline inode here */ >>>> >>>> Would it be better: >>>> >>>> /* should convert inline inode here in piror to i_size_write to avoid >>>> inconsistent status in between inline flag and i_size */ >>> >>> Put like this. >>> >>> + /* >>> + * should convert inline inode before i_size_write to >>> + * keep smaller than inline_data size with inline flag. >>> + */ >> >> Better, :) >> >> thanks, >> >>> >>>> >>>> Thanks, >>>> >>>>> + err = f2fs_convert_inline_inode(inode); >>>>> + if (err) >>>>> + return err; >>>>> + } >>>>> >>>>> down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); >>>>> down_write(&F2FS_I(inode)->i_mmap_sem); >>>>> >>>>> truncate_setsize(inode, attr->ia_size); >>>>> >>>>> - if (to_smaller) >>>>> + if (attr->ia_size <= old_size) >>>>> err = f2fs_truncate(inode); >>>>> /* >>>>> * do not trim all blocks after i_size if target size is >>>>> @@ -830,24 +836,11 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) >>>>> */ >>>>> up_write(&F2FS_I(inode)->i_mmap_sem); >>>>> up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); >>>>> - >>>>> if (err) >>>>> return err; >>>>> >>>>> - if (!to_smaller) { >>>>> - /* should convert inline inode here */ >>>>> - if (!f2fs_may_inline_data(inode)) { >>>>> - err = f2fs_convert_inline_inode(inode); >>>>> - if (err) { >>>>> - /* recover old i_size */ >>>>> - i_size_write(inode, old_size); >>>>> - return err; >>>>> - } >>>>> - } >>>>> - inode->i_mtime = inode->i_ctime = current_time(inode); >>>>> - } >>>>> - >>>>> down_write(&F2FS_I(inode)->i_sem); >>>>> + inode->i_mtime = inode->i_ctime = current_time(inode); >>>>> F2FS_I(inode)->last_disk_size = i_size_read(inode); >>>>> up_write(&F2FS_I(inode)->i_sem); >>>>> } >>>>> >>> . >>> > > > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel > _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel