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Date:      Mon, 13 Mar 2006 01:03:18 +0000 (UTC)
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   cvs commit: src/sys/geom/raid3 g_raid3.c g_raid3.h g_raid3_ctl.c
Message-ID:  <200603130103.k2D13I3x063541@repoman.freebsd.org>

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pjd         2006-03-13 01:03:18 UTC

  FreeBSD src repository

  Modified files:
    sys/geom/raid3       g_raid3.c g_raid3.h g_raid3_ctl.c 
  Log:
  - Reimplement I/O data allocation to prevent deadlocks.
  
          Submitted by:   green
  
  - Speed up synchronization process by using configurable number of I/O
    requests in parallel.
    + Add kern.geom.raid3.sync_requests tunable which defines how many parallel
      I/O requests should be used.
    + Retire kern.geom.raid3.reqs_per_sync and kern.geom.raid3.syncs_per_sec
      sysctls.
  - Fix race between regular and synchronization requests.
  - Reimplement raid3's data synchronization - do not use the topology lock
    for this purpose, as it may case deadlocks.
  - Stop synchronization from pre-sync hook.
  - Fix some other minor issues.
  
  Tested by:      Mike Tancsa <mike@sentex.net>
  MFC after:      3 days
  
  Revision  Changes    Path
  1.55      +540 -272  src/sys/geom/raid3/g_raid3.c
  1.16      +39 -8     src/sys/geom/raid3/g_raid3.h
  1.14      +93 -72    src/sys/geom/raid3/g_raid3_ctl.c



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