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Asynchronous raid6 acceleration (part 3 of 3)

From:  Dan Williams <>
Subject:  [PATCH 0/8] Asynchronous raid6 acceleration (part 3 of 3)
Date:  Wed, 03 Jun 2009 18:28:58 -0700
Message-ID:  <>
Archive-link:  Article

This series covers the changes to md/raid6 to use the new offload
capabilities of async_tx.  Part 1 [1] covered the changes to async_tx
for asynchronous raid6 parity generation and recovery.  Part 2 [2]
covered the updates to the iop-adma driver to enable raid6.

A merge of these 3 topic series is available via the raid6 branch of

	git:// raid6

The basic implementation of these patches have not changed much from
Yuri's previous release [3].  Instead this series has been rebased to
incorporate the modified async_tx/raid6 apis.  Note that the rework of
md/raid456 to move its async_tx parameter allocations from the stack to
the heap was included in commit 'md/raid5: add scribble region for
buffer lists' of Part 1 [4].  Current testing in the lab is passing, and
the code is ready for wider testing.

The 'raid6' branch will be placed in linux-next and if all goes well a
pull request may be sent towards the end of the 2.6.31 merge window.

Please review.




Dan Williams (3):
      md/raid6: asynchronous handle_parity_check6
      md/raid6: asynchronous raid6 operations
      md/raid5: factor out mark_uptodate from ops_complete_compute5

Yuri Tikhonov (5):
      md/raid6: remove synchronous infrastructure
      md/raid6: asynchronous handle_stripe6
      md/raid6: asynchronous handle_stripe_dirtying6
      md/raid6: asynchronous handle_stripe_fill6
      md/raid5,6: common schedule_reconstruction for raid5/6

 drivers/md/Kconfig |    2 
 drivers/md/raid5.c | 1139 +++++++++++++++++++++++++++++-----------------------
 drivers/md/raid5.h |    8 
 3 files changed, 645 insertions(+), 504 deletions(-)
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