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

From: Linus Torvalds
Date: Tue Oct 29 2013 - 17:36:48 EST

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.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at