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SubjectRe: [partial fix?] Re: Badblocks and no free pages...
> 		wakeup_bdflush(1);
> should say to the writing process "hold on a bit before you supply me
> a new wave of buffers, as the write pipeline is already full enough
> for efficient operation, and I'm already servicing it as fast as I can".

One obvious solution for 2.1.x is to keep a per device highwater mark. This
will also mean we can deal nicely with the "wrote 1.4Mb to fd0 and it'll
be filling the disk cache for a while now.."

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