On Mon, 2013-06-17 at 16:38 -0700, Yinghai Lu wrote: > On Mon, Jun 17, 2013 at 4:22 PM, Toshi Kani <[email protected]> wrote: > > On Fri, 2013-06-14 at 17:56 -0700, Yinghai Lu wrote: > >> Now we only search buffer for override acpi table under 4G. > >> In some case, like user use memmap to exclude all low ram, > >> we may not find range for it under 4G. > >> > >> Do second try to search above 4G. > >> > >> Signed-off-by: Yinghai Lu <[email protected]> > >> Cc: "Rafael J. Wysocki" <[email protected]> > >> Cc: [email protected] > >> Tested-by: Thomas Renninger <[email protected]> > >> Reviewed-by: Tang Chen <[email protected]> > >> Tested-by: Tang Chen <[email protected]> > >> --- > >> drivers/acpi/osl.c | 4 ++++ > >> 1 file changed, 4 insertions(+) > >> > >> diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c > >> index 93e3194..42c48fc 100644 > >> --- a/drivers/acpi/osl.c > >> +++ b/drivers/acpi/osl.c > >> @@ -627,6 +627,10 @@ void __init acpi_initrd_override(void *data, size_t > >> size) > >> /* under 4G at first, then above 4G */ > >> acpi_tables_addr = memblock_find_in_range(0, (1ULL<<32) - 1, > >> all_tables_size, PAGE_SIZE); > >> + if (!acpi_tables_addr) > >> + acpi_tables_addr = memblock_find_in_range(0, > >> + ~(phys_addr_t)0, > >> + all_tables_size, PAGE_SIZE); > > > > Should this search start from 4G, instead of 0? > > should be ok, as memblock searching is top-down.
I see. Thanks for the clarification. Acked-by: Toshi Kani <[email protected]> -Toshi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
