From: Manfred Spraul <manfred@colorfullife.com>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: sys_exit() and zap_page_range()
Date: Fri, 07 Jul 2000 18:42:36 +0200 [thread overview]
Message-ID: <3966087C.D4D9E74E@colorfullife.com> (raw)
In-Reply-To: <3965EC8E.5950B758@uow.edu.au>
Andrew Morton wrote:
>
> Can anyone suggest a simple, clean way of decreasing zap_page_range's
> scheduling latency, in a way which you're prepared to support?
>
Btw, zap_page_range() contains a huge TLB flush race: the freed pages
become available immediately to other processes, but stale tlb entries
are only flushed when zap_page_range() returns [check madvise_dontneed,
and several other functions]
A proper fix would be a major change, probably along Kanoj's proposal
(pte_freeze_range).
--
Manfred
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next prev parent reply other threads:[~2000-07-07 16:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-07 14:43 Andrew Morton
2000-07-07 16:42 ` Manfred Spraul [this message]
2000-07-09 17:30 ` Philipp Rumpf
2000-07-09 17:42 ` Arjan van de Ven
2000-07-09 23:54 ` Andrew Morton
2000-07-10 9:53 ` Philipp Rumpf
2000-07-10 15:36 ` Andrew Morton
2000-07-10 17:34 ` Philipp Rumpf
2000-07-11 8:39 ` Stephen C. Tweedie
2000-07-11 11:24 ` Andrew Morton
2000-07-11 13:35 ` Stephen C. Tweedie
2000-07-11 15:23 ` Richard Guenther
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