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author | Al Viro <viro@zeniv.linux.org.uk> | 2005-10-21 03:22:44 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-28 08:16:51 -0700 |
commit | 260b23674fdb570f3235ce55892246bef1c24c2a (patch) | |
tree | 471e7b546cbf1f7ee4a165e5bd9a2de0770e53be /mm | |
parent | c4cdd038318863e912e9b992489f61497f98b442 (diff) | |
download | linux-260b23674fdb570f3235ce55892246bef1c24c2a.tar.gz linux-260b23674fdb570f3235ce55892246bef1c24c2a.tar.bz2 linux-260b23674fdb570f3235ce55892246bef1c24c2a.zip |
[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')
-rw-r--r-- | mm/highmem.c | 14 | ||||
-rw-r--r-- | mm/page_alloc.c | 29 |
2 files changed, 24 insertions, 19 deletions
diff --git a/mm/highmem.c b/mm/highmem.c index 90e1861e2da0..ce2e7e8bbfa7 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -30,11 +30,9 @@ static mempool_t *page_pool, *isa_page_pool; -static void *page_pool_alloc(gfp_t gfp_mask, void *data) +static void *page_pool_alloc_isa(gfp_t gfp_mask, void *data) { - unsigned int gfp = gfp_mask | (unsigned int) (long) data; - - return alloc_page(gfp); + return alloc_page(gfp_mask | GFP_DMA); } static void page_pool_free(void *page, void *data) @@ -51,6 +49,12 @@ static void page_pool_free(void *page, void *data) * n means that there are (n-1) current users of it. */ #ifdef CONFIG_HIGHMEM + +static void *page_pool_alloc(gfp_t gfp_mask, void *data) +{ + return alloc_page(gfp_mask); +} + static int pkmap_count[LAST_PKMAP]; static unsigned int last_pkmap_nr; static __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock); @@ -267,7 +271,7 @@ int init_emergency_isa_pool(void) if (isa_page_pool) return 0; - isa_page_pool = mempool_create(ISA_POOL_SIZE, page_pool_alloc, page_pool_free, (void *) __GFP_DMA); + isa_page_pool = mempool_create(ISA_POOL_SIZE, page_pool_alloc_isa, page_pool_free, NULL); if (!isa_page_pool) BUG(); 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 |