Re: [PATCH v2] vfs: move dentry shrinking outside the inode lock in 'rmdir()'

[Yafang Shao <laoar.shao@xxxxxxxxx>]

On Sun, May 12, 2024 at 11:30 AM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> On Sun, May 12, 2024 at 11:06:07AM +0800, Yafang Shao wrote:
> > This could resolve the secondary concern.
> > Tested-by: Yafang Shao <laoar.shao@xxxxxxxxx>
> >
> > Might it be feasible to execute the vfs_rmdir_cleanup() within a
> > kwoker? Such an approach could potentially mitigate the initial
> > concern as well.
>
>         I'm honestly not sure I understood you correctly; in case I
> have and you really want to make that asynchronous,

Exactly, that's precisely my point.

> the answer's "we
> can't do that".  What's more, we can not even delay that past the call
> of mnt_drop_write() in do_rmdir().

Thanks for your explanation.

-- 
Regards
Yafang