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-rw-r--r--arch/ia64/Kconfig4
-rw-r--r--arch/ia64/mm/contig.c2
-rw-r--r--arch/ia64/mm/discontig.c2
-rw-r--r--arch/ia64/mm/init.c51
4 files changed, 6 insertions, 53 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 6e41471449c0..de1bff659969 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -31,6 +31,10 @@ config ZONE_DMA
31 def_bool y 31 def_bool y
32 depends on !IA64_SGI_SN2 32 depends on !IA64_SGI_SN2
33 33
34config QUICKLIST
35 bool
36 default y
37
34config MMU 38config MMU
35 bool 39 bool
36 default y 40 default y
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 44ce5ed9444c..7ac8592a35b6 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -88,7 +88,7 @@ void show_mem(void)
88 printk(KERN_INFO "%d pages shared\n", total_shared); 88 printk(KERN_INFO "%d pages shared\n", total_shared);
89 printk(KERN_INFO "%d pages swap cached\n", total_cached); 89 printk(KERN_INFO "%d pages swap cached\n", total_cached);
90 printk(KERN_INFO "Total of %ld pages in page table cache\n", 90 printk(KERN_INFO "Total of %ld pages in page table cache\n",
91 pgtable_quicklist_total_size()); 91 quicklist_total_size());
92 printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages()); 92 printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages());
93} 93}
94 94
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 94844442812a..38085ac18338 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -561,7 +561,7 @@ void show_mem(void)
561 printk(KERN_INFO "%d pages shared\n", total_shared); 561 printk(KERN_INFO "%d pages shared\n", total_shared);
562 printk(KERN_INFO "%d pages swap cached\n", total_cached); 562 printk(KERN_INFO "%d pages swap cached\n", total_cached);
563 printk(KERN_INFO "Total of %ld pages in page table cache\n", 563 printk(KERN_INFO "Total of %ld pages in page table cache\n",
564 pgtable_quicklist_total_size()); 564 quicklist_total_size());
565 printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages()); 565 printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages());
566} 566}
567 567
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index cffb1e8325e8..c14abefabafa 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -39,9 +39,6 @@
39 39
40DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); 40DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
41 41
42DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist);
43DEFINE_PER_CPU(long, __pgtable_quicklist_size);
44
45extern void ia64_tlb_init (void); 42extern void ia64_tlb_init (void);
46 43
47unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL; 44unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
@@ -56,54 +53,6 @@ EXPORT_SYMBOL(vmem_map);
56struct page *zero_page_memmap_ptr; /* map entry for zero page */ 53struct page *zero_page_memmap_ptr; /* map entry for zero page */
57EXPORT_SYMBOL(zero_page_memmap_ptr); 54EXPORT_SYMBOL(zero_page_memmap_ptr);
58 55
59#define MIN_PGT_PAGES 25UL
60#define MAX_PGT_FREES_PER_PASS 16L
61#define PGT_FRACTION_OF_NODE_MEM 16
62
63static inline long
64max_pgt_pages(void)
65{
66 u64 node_free_pages, max_pgt_pages;
67
68#ifndef CONFIG_NUMA
69 node_free_pages = nr_free_pages();
70#else
71 node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES);
72#endif
73 max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM;
74 max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES);
75 return max_pgt_pages;
76}
77
78static inline long
79min_pages_to_free(void)
80{
81 long pages_to_free;
82
83 pages_to_free = pgtable_quicklist_size - max_pgt_pages();
84 pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS);
85 return pages_to_free;
86}
87
88void
89check_pgt_cache(void)
90{
91 long pages_to_free;
92
93 if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES))
94 return;
95
96 preempt_disable();
97 while (unlikely((pages_to_free = min_pages_to_free()) > 0)) {
98 while (pages_to_free--) {
99 free_page((unsigned long)pgtable_quicklist_alloc());
100 }
101 preempt_enable();
102 preempt_disable();
103 }
104 preempt_enable();
105}
106
107void 56void
108lazy_mmu_prot_update (pte_t pte) 57lazy_mmu_prot_update (pte_t pte)
109{ 58{