ACPI: Avoid walking the list of memory mappings in osl.c twice in a row
authorRafael J. Wysocki <rjw@sisk.pl>
Tue, 8 Feb 2011 22:37:53 +0000 (23:37 +0100)
committerRafael J. Wysocki <rjw@sisk.pl>
Thu, 24 Feb 2011 18:58:41 +0000 (19:58 +0100)
commit7fe135dc058faea0ce319a03e3b6f98c5049955c
treeecd7f70c02bb15ff36749f9db4d8c9d14af4f623
parent7bbb890358b96cb6f77adc6815f2072bdf813d5d
ACPI: Avoid walking the list of memory mappings in osl.c twice in a row

Make acpi_os_unmap_generic_address() use acpi_map_lookup() to find
the desired iomap and drop the reference to it directly (and
eventually remove it if necessary) instead of calling
acpi_os_unmap_memory(), which requires us to walk the list of ACPI
iomaps twice in a row (first, to get the virtual address associated
with the iomap and second, to get the iomap itself).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
drivers/acpi/osl.c