From: "Oliver S." <Follow.Me@gmx.net>
To: <linux-kernel@vger.kernel.org>
Subject: questions regarding Journalling-FSes and w-cache reordering
Date: Wed, 9 Apr 2003 21:33:20 +0200 [thread overview]
Message-ID: <000901c2fece$e2801c80$0200000a@kimba> (raw)
I've got a question regarding the behaviour of w-caches with ATA-harddisks:
Is a ATA-harddisk allowed to reorder the operations from in w-cache ? On one
side, this would be an opportunity to optimize head-movements (although a good
cyclical-scan drive-scheduler would gain the same if it can rely on a linear
sector-mapping), but on the other side, this would compromise the two-phase
commiting of journalling FSes and render it useless. So I doubt that reorder-
ing is allowed with ATA-HDs. Are my assumptions right ?
next reply other threads:[~2003-04-09 19:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-09 19:33 Oliver S. [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-09 19:52 questions regarding Journalling-FSes and w-cache reordering Mudama, Eric
2003-04-09 20:12 ` Alan Cox
2003-04-09 21:35 ` Torrey Hoffman
2003-04-10 17:39 ` Alan Cox
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