Re: [PATCH v1 2/3] fuse: use GFP_KERNEL_ACCOUNT for allocations in fuse_dev_alloc

[Miklos Szeredi]

On Fri, 5 Jan 2024 at 16:21, Alexander Mikhalitsyn
<aleksandr.mikhalitsyn@xxxxxxxxxxxxx> wrote:
>
> fuse_dev_alloc() is called from the process context and it makes
> sense to properly account allocated memory to the kmemcg as these
> allocations are for long living objects.

Are the rules about when to use __GFP_ACCOUNT and when not documented somewhere?

I notice that most filesystem objects are allocated with
__GFP_ACCOUNT, but struct super_block isn't.  Is there a reason for
that?

Thanks,
Miklos