Re: Disabling in-memory write cache for x86-64 in Linux II

[Linus Torvalds]

On Tue, Oct 29, 2013 at 1:43 PM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 29 Oct 2013 21:30:50 +0100 Jan Kara <jack@xxxxxxx> wrote:
>
>> Andrew has queued up a patch series from Maxim Patlasov which removes this
>> caveat but currently we don't have a way admin can switch that from
>> userspace. But I'd like to have that tunable from userspace exactly for the
>> cases as you describe below.
>
> This?
>
>     mm/page-writeback.c: add strictlimit feature
>
> That's already in mainline, for 3.12.

Nothing currently actually *sets* the BDI_CAP_STRICTLIMIT flag, though.

So it's a potential fix, but it's certainly not a fix now.

               Linus
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