Re: 2.5.59-mm5

From: Alex Tomas (bzzz@tmi.comex.ru)
Date: Fri Jan 24 2003 - 06:23:58 EST


>>>>> Andrew Morton (AM) writes:

 AM> But writes are completely different. There is no dependency
 AM> between them and at any point in time we know where on-disk a lot
 AM> of writes will be placed. We don't know that for reads, which is
 AM> why we need to twiddle thumbs until the application or filesystem
 AM> makes up its mind.

it's significant that application doesn't want to wait read completion
long and doesn't wait for write completion in most cases.

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