From: Shaohua Li <shli@kernel.org>
To: linux-raid@vger.kernel.org
Cc: neilb@suse.de, dan.j.williams@intel.com, axboe@kernel.dk
Subject: [RFC 0/2] raid5 trim support
Date: Tue, 17 Apr 2012 16:35:52 +0800 [thread overview]
Message-ID: <20120417083552.483324288@kernel.org> (raw)
These are the raid5 trim support patches I'm working on. There are some
limitations to support raid5 trim. I explained the details in the first patch.
The raid5 state machine is quite complicated and I'm sure I missed something,
so it's a RFC so far. And the raid5 trim suffers from the same discard request
merge issue as raid0/10. If you try these in a SSD, please ignore the warning
from block layer. But anyway, my raid4/5/6 tests work well with a fusionio
card. Comments and suggestions are welcome!
Thanks,
Shaohua
next reply other threads:[~2012-04-17 8:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-17 8:35 Shaohua Li [this message]
2012-04-17 8:35 ` [RFC 1/2] MD: raid5 trim support Shaohua Li
2012-04-17 14:46 ` Dan Williams
2012-04-17 15:07 ` Shaohua Li
2012-04-17 18:16 ` Dan Williams
2012-04-17 20:26 ` NeilBrown
2012-04-18 0:58 ` Shaohua Li
2012-04-18 4:48 ` NeilBrown
2012-04-18 5:30 ` Shaohua Li
2012-04-18 5:57 ` NeilBrown
2012-04-18 6:34 ` Shaohua Li
2012-04-25 3:43 ` Shaohua Li
2012-05-08 10:16 ` Shaohua Li
2012-05-08 15:52 ` Dan Williams
2012-05-09 3:12 ` Shaohua Li
2012-05-08 20:17 ` NeilBrown
2012-04-17 8:35 ` [RFC 2/2] MD: raid5 avoid unnecessary zero page for trim Shaohua Li
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