[11/17] GFP_VFALLBACK for zone wait table.
Currently vmalloc is used for the zone wait table possibly generating the need to generate lots of TLBs to access the tables. We can now use GFP_VFALLBACK to attempt the use of a physically contiguous page that can then use the large kernel TLBs. Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]> --- mm/page_alloc.c |4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: linux-2.6/mm/page_alloc.c === --- linux-2.6.orig/mm/page_alloc.c 2007-09-24 18:48:06.0 -0700 +++ linux-2.6/mm/page_alloc.c 2007-09-24 18:48:16.0 -0700 @@ -2550,7 +2550,9 @@ int zone_wait_table_init(struct zone *zo * To use this new node's memory, further consideration will be * necessary. */ - zone->wait_table = (wait_queue_head_t *)vmalloc(alloc_size); + zone->wait_table = (wait_queue_head_t *) + __get_free_pages(GFP_VFALLBACK, + get_order(alloc_size)); } if (!zone->wait_table) return -ENOMEM; -- - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
[11/17] GFP_VFALLBACK for zone wait table.
Currently we have to use vmalloc for the zone wait table possibly generating the need to create lots of TLBs to access the tables. We can now use GFP_VFALLBACK to attempt the use of a physically contiguous page that can then use the large kernel TLBs. Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]> --- mm/page_alloc.c |4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: linux-2.6/mm/page_alloc.c === --- linux-2.6.orig/mm/page_alloc.c 2007-09-18 14:29:05.0 -0700 +++ linux-2.6/mm/page_alloc.c 2007-09-18 14:29:10.0 -0700 @@ -2572,7 +2572,9 @@ int zone_wait_table_init(struct zone *zo * To use this new node's memory, further consideration will be * necessary. */ - zone->wait_table = (wait_queue_head_t *)vmalloc(alloc_size); + zone->wait_table = (wait_queue_head_t *) + __get_free_pages(GFP_VFALLBACK, + get_order(alloc_size)); } if (!zone->wait_table) return -ENOMEM; -- - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
