On 7/16/21 8:51 AM, Vivek Goyal wrote:
> On Fri, Jul 16, 2021 at 08:40:29AM +0800, Liu Bo wrote:
>> On Thu, Jul 15, 2021 at 05:30:31PM +0800, Jeffle Xu wrote:
>>> Add one flag for fuse_attr.flags indicating if DAX shall be enabled for
>>> this file.
>>>
>>> When the per-file DAX flag changes for an *opened* file, the state of
>>> the file won't be updated until this file is closed and reopened later.
>>>
>>> Currently it is not implemented yet to change per-file DAX flag inside
>>> guest kernel, e.g., by chattr(1).
>>
>> Thanks for the patch, it looks good to me.
>>
>> I think it's a good starting point, what I'd like to discuss here is
>> whether we're going to let chattr to toggle the dax flag.
>
> I have the same question. Why not take chattr approach as taken
> by ext4/xfs as well.
>
> Vivek
Thanks.
We can implement the chattr approach as ext4/xfs do, if we have this use
scenario. It's an RFC patch, and I want to collect more feedback as soon
as possible.
--
Thanks,
Jeffle
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