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From: Mark Hahn <hahn@mcmaster.ca>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: [PATCH RFC 3/4] md: writeback caching policy for raid5 [experimental]
Date: Wed, 11 Apr 2007 18:40:05 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0704111837410.5557@coffee.psychology.mcmaster.ca> (raw)
In-Reply-To: <20070411060036.15745.7016.stgit@dwillia2-linux.ch.intel.com>

> In its current implementation write-back mode acknowledges writes before
> they have reached non-volatile media.

which is basically normal for unix, no?

are you planning to support barriers?  (which are the block system's way 
of supporting filesystem atomicity).

  reply	other threads:[~2007-04-11 22:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-11  6:00 [PATCH RFC 0/4] raid5: write-back caching policy and write performance Dan Williams
2007-04-11  6:00 ` [PATCH RFC 1/4] md: introduce struct stripe_head_state Dan Williams
2007-04-11  6:00 ` [PATCH RFC 2/4] md: refactor raid5 cache policy code using 'struct stripe_cache_policy' Dan Williams
2007-04-11  6:00 ` [PATCH RFC 3/4] md: writeback caching policy for raid5 [experimental] Dan Williams
2007-04-11 22:40   ` Mark Hahn [this message]
2007-04-12  0:08     ` Williams, Dan J
2007-04-12  6:21       ` Neil Brown
2007-04-12  5:37   ` Al Boldi
2007-04-11  6:00 ` [PATCH RFC 4/4] md: delayed stripe activation Dan Williams

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