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authorAl Viro <viro@zeniv.linux.org.uk>2005-10-21 11:22:44 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-28 19:16:51 +0400
commit260b23674fdb570f3235ce55892246bef1c24c2a (patch)
tree471e7b546cbf1f7ee4a165e5bd9a2de0770e53be /mm/page_alloc.c
parentc4cdd038318863e912e9b992489f61497f98b442 (diff)
downloadlinux-260b23674fdb570f3235ce55892246bef1c24c2a.tar.xz
[PATCH] gfp_t: the rest
zone handling, mapping->flags handling Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index aa43ae3ab8c9..94c864eac9c4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -734,7 +734,7 @@ buffered_rmqueue(struct zone *zone, int order, gfp_t gfp_flags)
* of the allocation.
*/
int zone_watermark_ok(struct zone *z, int order, unsigned long mark,
- int classzone_idx, int can_try_harder, int gfp_high)
+ int classzone_idx, int can_try_harder, gfp_t gfp_high)
{
/* free_pages my go negative - that's OK */
long min = mark, free_pages = z->free_pages - (1 << order) + 1;
@@ -777,7 +777,7 @@ struct page * fastcall
__alloc_pages(gfp_t gfp_mask, unsigned int order,
struct zonelist *zonelist)
{
- const int wait = gfp_mask & __GFP_WAIT;
+ const gfp_t wait = gfp_mask & __GFP_WAIT;
struct zone **zones, *z;
struct page *page;
struct reclaim_state reclaim_state;
@@ -996,7 +996,7 @@ fastcall unsigned long get_zeroed_page(gfp_t gfp_mask)
* get_zeroed_page() returns a 32-bit address, which cannot represent
* a highmem page
*/
- BUG_ON(gfp_mask & __GFP_HIGHMEM);
+ BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0);
page = alloc_pages(gfp_mask | __GFP_ZERO, 0);
if (page)
@@ -1428,6 +1428,16 @@ static int __init build_zonelists_node(pg_data_t *pgdat, struct zonelist *zoneli
return j;
}
+static inline int highest_zone(int zone_bits)
+{
+ int res = ZONE_NORMAL;
+ if (zone_bits & (__force int)__GFP_HIGHMEM)
+ res = ZONE_HIGHMEM;
+ if (zone_bits & (__force int)__GFP_DMA)
+ res = ZONE_DMA;
+ return res;
+}
+
#ifdef CONFIG_NUMA
#define MAX_NODE_LOAD (num_online_nodes())
static int __initdata node_load[MAX_NUMNODES];
@@ -1524,11 +1534,7 @@ static void __init build_zonelists(pg_data_t *pgdat)
zonelist = pgdat->node_zonelists + i;
for (j = 0; zonelist->zones[j] != NULL; j++);
- k = ZONE_NORMAL;
- if (i & __GFP_HIGHMEM)
- k = ZONE_HIGHMEM;
- if (i & __GFP_DMA)
- k = ZONE_DMA;
+ k = highest_zone(i);
j = build_zonelists_node(NODE_DATA(node), zonelist, j, k);
zonelist->zones[j] = NULL;
@@ -1549,12 +1555,7 @@ static void __init build_zonelists(pg_data_t *pgdat)
zonelist = pgdat->node_zonelists + i;
j = 0;
- k = ZONE_NORMAL;
- if (i & __GFP_HIGHMEM)
- k = ZONE_HIGHMEM;
- if (i & __GFP_DMA)
- k = ZONE_DMA;
-
+ k = highest_zone(i);
j = build_zonelists_node(pgdat, zonelist, j, k);
/*
* Now we build the zonelist so that it contains the zones