The patch titled
Quicklist support for IA64
has been added to the -mm tree. Its filename is
quicklist-support-for-ia64.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Quicklist support for IA64
From: Christoph Lameter <clameter@xxxxxxx>
IA64 is the origin of the quicklist implementation. So cut out the pieces
that are now in core code and modify the functions called.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Cc: William Lee Irwin III <wli@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/ia64/Kconfig | 4 +
arch/ia64/mm/contig.c | 2
arch/ia64/mm/discontig.c | 2
arch/ia64/mm/init.c | 51 ---------------------
include/asm-ia64/pgalloc.h | 82 ++++++-----------------------------
5 files changed, 22 insertions(+), 119 deletions(-)
diff -puN arch/ia64/Kconfig~quicklist-support-for-ia64 arch/ia64/Kconfig
--- a/arch/ia64/Kconfig~quicklist-support-for-ia64
+++ a/arch/ia64/Kconfig
@@ -30,6 +30,10 @@ config ZONE_DMA
def_bool y
depends on !IA64_SGI_SN2
+config QUICKLIST
+ bool
+ default y
+
config MMU
bool
default y
diff -puN arch/ia64/mm/contig.c~quicklist-support-for-ia64 arch/ia64/mm/contig.c
--- a/arch/ia64/mm/contig.c~quicklist-support-for-ia64
+++ a/arch/ia64/mm/contig.c
@@ -88,7 +88,7 @@ void show_mem(void)
printk(KERN_INFO "%d pages shared\n", total_shared);
printk(KERN_INFO "%d pages swap cached\n", total_cached);
printk(KERN_INFO "Total of %ld pages in page table cache\n",
- pgtable_quicklist_total_size());
+ quicklist_total_size());
printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages());
}
diff -puN arch/ia64/mm/discontig.c~quicklist-support-for-ia64 arch/ia64/mm/discontig.c
--- a/arch/ia64/mm/discontig.c~quicklist-support-for-ia64
+++ a/arch/ia64/mm/discontig.c
@@ -561,7 +561,7 @@ void show_mem(void)
printk(KERN_INFO "%d pages shared\n", total_shared);
printk(KERN_INFO "%d pages swap cached\n", total_cached);
printk(KERN_INFO "Total of %ld pages in page table cache\n",
- pgtable_quicklist_total_size());
+ quicklist_total_size());
printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages());
}
diff -puN arch/ia64/mm/init.c~quicklist-support-for-ia64 arch/ia64/mm/init.c
--- a/arch/ia64/mm/init.c~quicklist-support-for-ia64
+++ a/arch/ia64/mm/init.c
@@ -39,9 +39,6 @@
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist);
-DEFINE_PER_CPU(long, __pgtable_quicklist_size);
-
extern void ia64_tlb_init (void);
unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
@@ -56,54 +53,6 @@ EXPORT_SYMBOL(vmem_map);
struct page *zero_page_memmap_ptr; /* map entry for zero page */
EXPORT_SYMBOL(zero_page_memmap_ptr);
-#define MIN_PGT_PAGES 25UL
-#define MAX_PGT_FREES_PER_PASS 16L
-#define PGT_FRACTION_OF_NODE_MEM 16
-
-static inline long
-max_pgt_pages(void)
-{
- u64 node_free_pages, max_pgt_pages;
-
-#ifndef CONFIG_NUMA
- node_free_pages = nr_free_pages();
-#else
- node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES);
-#endif
- max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM;
- max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES);
- return max_pgt_pages;
-}
-
-static inline long
-min_pages_to_free(void)
-{
- long pages_to_free;
-
- pages_to_free = pgtable_quicklist_size - max_pgt_pages();
- pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS);
- return pages_to_free;
-}
-
-void
-check_pgt_cache(void)
-{
- long pages_to_free;
-
- if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES))
- return;
-
- preempt_disable();
- while (unlikely((pages_to_free = min_pages_to_free()) > 0)) {
- while (pages_to_free--) {
- free_page((unsigned long)pgtable_quicklist_alloc());
- }
- preempt_enable();
- preempt_disable();
- }
- preempt_enable();
-}
-
void
lazy_mmu_prot_update (pte_t pte)
{
diff -puN include/asm-ia64/pgalloc.h~quicklist-support-for-ia64 include/asm-ia64/pgalloc.h
--- a/include/asm-ia64/pgalloc.h~quicklist-support-for-ia64
+++ a/include/asm-ia64/pgalloc.h
@@ -18,71 +18,18 @@
#include <linux/mm.h>
#include <linux/page-flags.h>
#include <linux/threads.h>
+#include <linux/quicklist.h>
#include <asm/mmu_context.h>
-DECLARE_PER_CPU(unsigned long *, __pgtable_quicklist);
-#define pgtable_quicklist __ia64_per_cpu_var(__pgtable_quicklist)
-DECLARE_PER_CPU(long, __pgtable_quicklist_size);
-#define pgtable_quicklist_size __ia64_per_cpu_var(__pgtable_quicklist_size)
-
-static inline long pgtable_quicklist_total_size(void)
-{
- long ql_size = 0;
- int cpuid;
-
- for_each_online_cpu(cpuid) {
- ql_size += per_cpu(__pgtable_quicklist_size, cpuid);
- }
- return ql_size;
-}
-
-static inline void *pgtable_quicklist_alloc(void)
-{
- unsigned long *ret = NULL;
-
- preempt_disable();
-
- ret = pgtable_quicklist;
- if (likely(ret != NULL)) {
- pgtable_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- --pgtable_quicklist_size;
- preempt_enable();
- } else {
- preempt_enable();
- ret = (unsigned long *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
- }
-
- return ret;
-}
-
-static inline void pgtable_quicklist_free(void *pgtable_entry)
-{
-#ifdef CONFIG_NUMA
- int nid = page_to_nid(virt_to_page(pgtable_entry));
-
- if (unlikely(nid != numa_node_id())) {
- free_page((unsigned long)pgtable_entry);
- return;
- }
-#endif
-
- preempt_disable();
- *(unsigned long *)pgtable_entry = (unsigned long)pgtable_quicklist;
- pgtable_quicklist = (unsigned long *)pgtable_entry;
- ++pgtable_quicklist_size;
- preempt_enable();
-}
-
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pgd_free(pgd_t * pgd)
{
- pgtable_quicklist_free(pgd);
+ quicklist_free(0, NULL, pgd);
}
#ifdef CONFIG_PGTABLE_4
@@ -94,12 +41,12 @@ pgd_populate(struct mm_struct *mm, pgd_t
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pud_free(pud_t * pud)
{
- pgtable_quicklist_free(pud);
+ quicklist_free(0, NULL, pud);
}
#define __pud_free_tlb(tlb, pud) pud_free(pud)
#endif /* CONFIG_PGTABLE_4 */
@@ -112,12 +59,12 @@ pud_populate(struct mm_struct *mm, pud_t
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pmd_free(pmd_t * pmd)
{
- pgtable_quicklist_free(pmd);
+ quicklist_free(0, NULL, pmd);
}
#define __pmd_free_tlb(tlb, pmd) pmd_free(pmd)
@@ -137,28 +84,31 @@ pmd_populate_kernel(struct mm_struct *mm
static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long addr)
{
- void *pg = pgtable_quicklist_alloc();
+ void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
return pg ? virt_to_page(pg) : NULL;
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pte_free(struct page *pte)
{
- pgtable_quicklist_free(page_address(pte));
+ quicklist_free_page(0, NULL, pte);
}
static inline void pte_free_kernel(pte_t * pte)
{
- pgtable_quicklist_free(pte);
+ quicklist_free(0, NULL, pte);
}
-#define __pte_free_tlb(tlb, pte) pte_free(pte)
+static inline void check_pgt_cache(void)
+{
+ quicklist_trim(0, NULL, 25, 16);
+}
-extern void check_pgt_cache(void);
+#define __pte_free_tlb(tlb, pte) pte_free(pte)
#endif /* _ASM_IA64_PGALLOC_H */
_
Patches currently in -mm which might be from clameter@xxxxxxx are
slab-introduce-krealloc.patch
slab-introduce-krealloc-fix.patch
paravirt_ops-allow-paravirt-backend-to-choose-kernel-pmd-sharing.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
safer-nr_node_ids-and-nr_node_ids-determination-and-initial.patch
use-zvc-counters-to-establish-exact-size-of-dirtyable-pages.patch
slab-ensure-cache_alloc_refill-terminates.patch
smaps-extract-pmd-walker-from-smaps-code.patch
smaps-add-pages-referenced-count-to-smaps.patch
smaps-add-clear_refs-file-to-clear-reference.patch
smaps-add-clear_refs-file-to-clear-reference-fix.patch
smaps-add-clear_refs-file-to-clear-reference-fix-fix.patch
slab-use-num_possible_cpus-in-enable_cpucache.patch
i386-use-page-allocator-to-allocate-thread_info-structure.patch
slub-core.patch
slub-fix-numa-bootstrap.patch
slub-use-correct-flags-to-check-for-dma-cache.patch
slub-treat-slab_hwcache_align-as-a-mininum-and-not-as-the-alignment.patch
slub-add-slabinfo-tool.patch
make-page-private-usable-in-compound-pages-v1.patch
add-virt_to_head_page-and-consolidate-code-in-slab-and-slub.patch
quicklists-for-page-table-pages.patch
quicklist-support-for-ia64.patch
quicklist-support-for-x86_64.patch
quicklist-support-for-sparc64.patch
extend-print_symbol-capability-fix.patch
slab-shutdown-cache_reaper-when-cpu-goes-down.patch
mm-implement-swap-prefetching.patch
readahead-state-based-method-aging-accounting.patch
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