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mm: remove double indirection on tlb parameter to free_pgd_range() & Co
The double indirection here is not needed anywhere and hence (at least) confusing. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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a352894d07
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42b7772812
@ -112,7 +112,7 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int wri
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return NULL;
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}
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void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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void hugetlb_free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor, unsigned long ceiling)
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{
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@ -255,7 +255,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
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*
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* Must be called with pagetable lock held.
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*/
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void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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void hugetlb_free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor, unsigned long ceiling)
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{
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@ -315,13 +315,13 @@ void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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return;
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start = addr;
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pgd = pgd_offset((*tlb)->mm, addr);
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pgd = pgd_offset(tlb->mm, addr);
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do {
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BUG_ON(get_slice_psize((*tlb)->mm, addr) != mmu_huge_psize);
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BUG_ON(get_slice_psize(tlb->mm, addr) != mmu_huge_psize);
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next = pgd_addr_end(addr, end);
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if (pgd_none_or_clear_bad(pgd))
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continue;
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hugetlb_free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
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hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling);
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} while (pgd++, addr = next, addr != end);
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}
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@ -541,7 +541,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
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/*
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* when the old and new regions overlap clear from new_end.
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*/
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free_pgd_range(&tlb, new_end, old_end, new_end,
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free_pgd_range(tlb, new_end, old_end, new_end,
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vma->vm_next ? vma->vm_next->vm_start : 0);
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} else {
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/*
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@ -550,7 +550,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
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* have constraints on va-space that make this illegal (IA64) -
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* for the others its just a little faster.
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*/
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free_pgd_range(&tlb, old_start, old_end, new_end,
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free_pgd_range(tlb, old_start, old_end, new_end,
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vma->vm_next ? vma->vm_next->vm_start : 0);
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}
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tlb_finish_mmu(tlb, new_end, old_end);
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@ -4,7 +4,7 @@
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#include <asm/page.h>
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void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
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void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
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unsigned long end, unsigned long floor,
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unsigned long ceiling);
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@ -7,7 +7,7 @@
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int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
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unsigned long len);
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void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
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void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
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unsigned long end, unsigned long floor,
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unsigned long ceiling);
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@ -26,7 +26,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
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static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
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}
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static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor,
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unsigned long ceiling)
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@ -31,7 +31,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
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return 0;
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}
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static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor,
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unsigned long ceiling)
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@ -26,7 +26,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
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static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
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}
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static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
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static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor,
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unsigned long ceiling)
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@ -769,10 +769,8 @@ struct mm_walk {
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int walk_page_range(unsigned long addr, unsigned long end,
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struct mm_walk *walk);
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void free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
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void free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
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unsigned long end, unsigned long floor, unsigned long ceiling);
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void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *start_vma,
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unsigned long floor, unsigned long ceiling);
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int copy_page_range(struct mm_struct *dst, struct mm_struct *src,
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struct vm_area_struct *vma);
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void unmap_mapping_range(struct address_space *mapping,
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@ -13,6 +13,9 @@
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#include <linux/mm.h>
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void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
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unsigned long floor, unsigned long ceiling);
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static inline void set_page_count(struct page *page, int v)
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{
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atomic_set(&page->_count, v);
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10
mm/memory.c
10
mm/memory.c
@ -61,6 +61,8 @@
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#include <linux/swapops.h>
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#include <linux/elf.h>
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#include "internal.h"
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#ifndef CONFIG_NEED_MULTIPLE_NODES
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/* use the per-pgdat data instead for discontigmem - mbligh */
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unsigned long max_mapnr;
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@ -211,7 +213,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
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*
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* Must be called with pagetable lock held.
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*/
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void free_pgd_range(struct mmu_gather **tlb,
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void free_pgd_range(struct mmu_gather *tlb,
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unsigned long addr, unsigned long end,
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unsigned long floor, unsigned long ceiling)
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{
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@ -262,16 +264,16 @@ void free_pgd_range(struct mmu_gather **tlb,
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return;
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start = addr;
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pgd = pgd_offset((*tlb)->mm, addr);
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pgd = pgd_offset(tlb->mm, addr);
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do {
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next = pgd_addr_end(addr, end);
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if (pgd_none_or_clear_bad(pgd))
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continue;
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free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
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free_pud_range(tlb, pgd, addr, next, floor, ceiling);
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} while (pgd++, addr = next, addr != end);
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}
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void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *vma,
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void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
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unsigned long floor, unsigned long ceiling)
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{
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while (vma) {
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@ -32,6 +32,8 @@
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#include <asm/tlb.h>
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#include <asm/mmu_context.h>
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#include "internal.h"
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#ifndef arch_mmap_check
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#define arch_mmap_check(addr, len, flags) (0)
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#endif
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@ -1763,7 +1765,7 @@ static void unmap_region(struct mm_struct *mm,
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update_hiwater_rss(mm);
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unmap_vmas(&tlb, vma, start, end, &nr_accounted, NULL);
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vm_unacct_memory(nr_accounted);
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free_pgtables(&tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS,
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free_pgtables(tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS,
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next? next->vm_start: 0);
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tlb_finish_mmu(tlb, start, end);
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}
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@ -2063,7 +2065,7 @@ void exit_mmap(struct mm_struct *mm)
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/* Use -1 here to ensure all VMAs in the mm are unmapped */
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end = unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL);
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vm_unacct_memory(nr_accounted);
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free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
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free_pgtables(tlb, vma, FIRST_USER_ADDRESS, 0);
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tlb_finish_mmu(tlb, 0, end);
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/*
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