linux-kernel - Re: [PATCH RFC] f2fs: don't inline compressed inode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Thu, 26 Mar 2020 17:35:03 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>
Subject: Re: [PATCH RFC] f2fs: don't inline compressed inode

On 2020/3/25 23:58, Jaegeuk Kim wrote:
> On 03/25, Chao Yu wrote:
>> f2fs_may_inline_data() only check compressed flag on current inode
>> rather than on parent inode, however at this time compressed flag
>> has not been inherited yet.
> 
> When write() or other allocation happens, it'll be reset.

Yeah, all tests are fine w/o this RFC patch, anyway, will let you know if
I find something incompatible.

Thanks,

> 
>>
>> Signed-off-by: Chao Yu <yuchao0@...wei.com>
>> ---
>>
>> Jaegeuk,
>>
>> I'm not sure about this, whether inline_data flag can be compatible with
>> compress flag, thoughts?
>>
>>  fs/f2fs/namei.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
>> index f54119da2217..3807d1b4c4bc 100644
>> --- a/fs/f2fs/namei.c
>> +++ b/fs/f2fs/namei.c
>> @@ -86,7 +86,8 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
>>  	if (test_opt(sbi, INLINE_XATTR))
>>  		set_inode_flag(inode, FI_INLINE_XATTR);
>>  
>> -	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
>> +	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode) &&
>> +					!f2fs_compressed_file(dir))
>>  		set_inode_flag(inode, FI_INLINE_DATA);
>>  	if (f2fs_may_inline_dentry(inode))
>>  		set_inode_flag(inode, FI_INLINE_DENTRY);
>> -- 
>> 2.18.0.rc1
> .
>