1. 18 5月, 2010 1 次提交
    • T
      libata: kill ATA_FLAG_DISABLED · 3e4ec344
      Tejun Heo 提交于
      ATA_FLAG_DISABLED is only used by drivers which don't use
      ->error_handler framework and is largely broken.  Its only meaningful
      function is to make irq handlers skip processing if the flag is set,
      which is largely useless and even harmful as it makes those ports more
      likely to cause IRQ storms.
      
      Kill ATA_FLAG_DISABLED and makes the callers disable attached devices
      instead.  ata_port_probe() and ata_port_disable() which manipulate the
      flag are also killed.
      
      This simplifies condition check in IRQ handlers.  While updating IRQ
      handlers, remove ap NULL check as libata guarantees consecutive port
      allocation (unoccupied ports are initialized with dummies) and
      long-obsolete ATA_QCFLAG_ACTIVE check (checked by ata_qc_from_tag()).
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      3e4ec344
  2. 15 5月, 2010 39 次提交
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