[PATCH 2/2] ARC: mm: THP: use generic THP deposit/withdraw
From: Vineet Gupta <hidden>
Date: 2016-02-11 09:29:19
Also in:
linux-mm
Subsystem:
synopsys arc architecture, the rest · Maintainers:
Vineet Gupta, Linus Torvalds
Generic code can now cope with pgtable_t != struct page * Signed-off-by: Vineet Gupta <redacted> --- arch/arc/include/asm/hugepage.h | 8 -------- arch/arc/mm/tlb.c | 37 ------------------------------------- 2 files changed, 45 deletions(-)
diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h
index c5094de86403..8653ed2f2ec5 100644
--- a/arch/arc/include/asm/hugepage.h
+++ b/arch/arc/include/asm/hugepage.h@@ -66,14 +66,6 @@ extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr, #define has_transparent_hugepage() 1 -/* Generic variants assume pgtable_t is struct page *, hence need for these */ -#define __HAVE_ARCH_PGTABLE_DEPOSIT -extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp, - pgtable_t pgtable); - -#define __HAVE_ARCH_PGTABLE_WITHDRAW -extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp); - #define __HAVE_ARCH_FLUSH_PMD_TLB_RANGE extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 2e731c87011e..b300479b8ad3 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c@@ -663,43 +663,6 @@ void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr, update_mmu_cache(vma, addr, &pte); } -void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp, - pgtable_t pgtable) -{ - struct list_head *lh = (struct list_head *) pgtable; - - assert_spin_locked(&mm->page_table_lock); - - /* FIFO */ - if (!pmd_huge_pte(mm, pmdp)) - INIT_LIST_HEAD(lh); - else - list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp)); - pmd_huge_pte(mm, pmdp) = pgtable; -} - -pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp) -{ - struct list_head *lh; - pgtable_t pgtable; - - assert_spin_locked(&mm->page_table_lock); - - pgtable = pmd_huge_pte(mm, pmdp); - lh = (struct list_head *) pgtable; - if (list_empty(lh)) - pmd_huge_pte(mm, pmdp) = NULL; - else { - pmd_huge_pte(mm, pmdp) = (pgtable_t) lh->next; - list_del(lh); - } - - pte_val(pgtable[0]) = 0; - pte_val(pgtable[1]) = 0; - - return pgtable; -} - void local_flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) {
--
2.5.0
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>