On 2020/3/22 23:30, Ondřej Jirman wrote:
> On Sun, Mar 22, 2020 at 09:18:56PM +0800, Chao Yu wrote:
>> Hi,
>>
>> On 2020-3-22 20:14, Ondřej Jirman wrote:
>>> Hello,
>>>
>>> On Sun, Mar 22, 2020 at 06:13:27PM +0800, Chao Yu wrote:
From: Chao Yu
f2fs_inode_info.flags is unsigned long
On Sun, Mar 22, 2020 at 09:18:56PM +0800, Chao Yu wrote:
> Hi,
>
> On 2020-3-22 20:14, Ondřej Jirman wrote:
> > Hello,
> >
> > On Sun, Mar 22, 2020 at 06:13:27PM +0800, Chao Yu wrote:
> > > From: Chao Yu
> > >
> > > f2fs_inode_info.flags is unsigned long variable, it has 32 bits
> > > in 32bit
Hi,
On 2020-3-22 20:14, Ondřej Jirman wrote:
Hello,
On Sun, Mar 22, 2020 at 06:13:27PM +0800, Chao Yu wrote:
From: Chao Yu
f2fs_inode_info.flags is unsigned long variable, it has 32 bits
in 32bit architecture, since we introduced FI_MMAP_FILE flag
when we support data compression, we may acc
Hello,
On Sun, Mar 22, 2020 at 06:13:27PM +0800, Chao Yu wrote:
> From: Chao Yu
>
> f2fs_inode_info.flags is unsigned long variable, it has 32 bits
> in 32bit architecture, since we introduced FI_MMAP_FILE flag
> when we support data compression, we may access memory cross
> the border of .flags
From: Chao Yu
f2fs_inode_info.flags is unsigned long variable, it has 32 bits
in 32bit architecture, since we introduced FI_MMAP_FILE flag
when we support data compression, we may access memory cross
the border of .flags field, corrupting .i_sem field, result in
below deadlock.
To fix this issue
