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  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 28 May 2020 09:23:40 +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 3/3] f2fs: fix to cover meta flush with cp_lock

On 2020/5/28 5:02, Jaegeuk Kim wrote:
> On 05/27, Chao Yu wrote:
>> meta inode page should be flushed under cp_lock, fix it.
> 
> It doesn't matter for this case, yes?

It's not related to discard issue.

Now, I got some progress, I can reproduce that bug occasionally.

Thanks,

> 
>>
>> Signed-off-by: Chao Yu <yuchao0@...wei.com>
>> ---
>>  fs/f2fs/file.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
>> index f7de2a1da528..0fcae4d90074 100644
>> --- a/fs/f2fs/file.c
>> +++ b/fs/f2fs/file.c
>> @@ -2260,7 +2260,9 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
>>  		set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
>>  		break;
>>  	case F2FS_GOING_DOWN_METAFLUSH:
>> +		mutex_lock(&sbi->cp_mutex);
>>  		f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
>> +		mutex_unlock(&sbi->cp_mutex);
>>  		f2fs_stop_checkpoint(sbi, false);
>>  		set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
>>  		break;
>> -- 
>> 2.18.0.rc1
> .
> 

Powered by blists - more mailing lists