From: Manfred Spraul <manfred@colorfullife.com>
To: linux-kernel@vger.kernel.org
Subject: Who uses hdx=bswap or hdx=swapdata?
Date: Thu, 03 Jan 2002 23:11:08 +0100 [thread overview]
Message-ID: <3C34D6FC.9090207@colorfullife.com> (raw)
Is the hdx=bswap or hdx=swapdata option actually in use?
When is it needed?
The current implementation can cause data corruptions on SMP with PIO
transfers:
It modifies the source buffer during disk writes, and these temporary
modifications (within the irq handler) are visible with mmap on SMP.
Is it possible to remove the option entirely, or should it be fixed?
--
Manfred
next reply other threads:[~2002-01-03 22:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-03 22:11 Manfred Spraul [this message]
2002-01-03 22:17 ` Who uses hdx=bswap or hdx=swapdata? Cort Dougan
2002-01-03 22:32 ` Alan Cox
2002-01-03 22:41 ` Russell King
2002-01-04 9:09 ` Geert Uytterhoeven
2002-01-04 9:31 ` Chris Lawrence
2002-01-04 10:37 ` Alan Cox
2002-01-04 10:56 ` Geert Uytterhoeven
2002-01-04 17:15 ` Michael Schmitz
2002-01-04 17:20 ` Geert Uytterhoeven
2002-01-04 22:51 ` Richard Zidlicky
2002-01-04 18:43 ` Bernd Eckenfels
2002-01-12 22:40 ` Manfred Spraul
2002-01-13 11:19 ` Geert Uytterhoeven
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