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  1. 03 4月, 2008 8 次提交
  3. 30 3月, 2008 1 次提交
  5. 22 3月, 2008 5 次提交
  7. 19 3月, 2008 1 次提交
    • L
      IDE: Make taskfile interface more robust wrt unexpected end-of-command · 6c3c3158
      由 Linus Torvalds 提交于 
      Now that we handle all the special commands using REQ_TYPE_ATA_TASKFILE
rather than using the old REQ_TYPE_ATA_CMD model, we need to also
emulate the lack of full taskfile data that comes with the old command
model (ie when commands are generated with the HDIO_DRIVE_CMD ioctl
rather than using the HDIO_DRIVE_TASK[FILE] ioctls).

In particular, this means that we should handle command completion the
more relaxed way that the old drive_cmd_intr() code did.  It allows
commands to finish early even if they don't use up all the data that we
thought we had for them.

This fixes a regression seen by Anders Eriksson where some SMART
commands sent by smartd would cause a boot-time system hang on his
machine because the IDE command handling code didn't realize that the
command had completed.
Tested-by: NAnders Eriksson <aeriksson@fastmail.fm>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      6c3c3158
  9. 08 3月, 2008 4 次提交
  11. 27 2月, 2008 12 次提交
  13. 24 2月, 2008 1 次提交
    • R
      PM: Introduce PM_EVENT_HIBERNATE callback state · 3a2d5b70
      由 Rafael J. Wysocki 提交于 
      During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.

But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.

For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate.  Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.

These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Acked-by: NPavel Machek <pavel@ucw.cz>
Tested-by: NJeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      3a2d5b70
  15. 22 2月, 2008 1 次提交
  17. 19 2月, 2008 7 次提交