CVS commit: src/sys/dev/acpi

["Jared D. McNeill" <jmcneill%netbsd.org@localhost>]

Module Name:    src
Committed By:   jmcneill
Date:           Tue Jun  3 01:11:18 UTC 2008

Modified Files:
        src/sys/dev/acpi: acpi_bat.c

Log Message:
Simplify SME usage within acpibat:

  * No need for sme_refresh callback; GPE handler will tell us when the
    device status changed (otherwise we can refresh data up to once a second,
    and that can take time!)
  * Since sme_refresh callback is gone, mutex is no longer required to
    synchronize GPE handlers and refresh thread, so nuke it.
  * Don't do any more work in GPE handler than required; use AcpiOsExecute
    to clear battery status/information in the sysmon_task_queue along with
    the refresh.

With these changes running GNOME's battstat-applet-2 no longer causes
my mouse to stutter once a second, and significantly reduces its CPU usage.


To generate a diff of this commit:
cvs rdiff -r1.66 -r1.67 src/sys/dev/acpi/acpi_bat.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.