From: Michal Hocko <mhocko@xxxxxxxx>
__GFP_REPEAT has a rather weak semantic but since it has been introduced
around 2.6.12 it has been ignored for low order allocations.
{pud,pmd}_alloc_one are allocating from {PGT,PUD}_CACHE initialized in
pgtable_cache_init which doesn't have larger than sizeof(void *) << 12
size and that fits into !costly allocation request size. This means that
this flag has never been actually useful here because it has always been
used only for PAGE_ALLOC_COSTLY requests.
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
---
arch/powerpc/include/asm/pgalloc-64.h | 6 +++---
arch/powerpc/mm/hugetlbpage.c | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 5dcfde5dc673..aaa6d3bc5d86 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -58,7 +58,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
- GFP_KERNEL|__GFP_REPEAT);
+ GFP_KERNEL);
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@@ -181,7 +181,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
- GFP_KERNEL|__GFP_REPEAT);
+ GFP_KERNEL);
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@@ -245,7 +245,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
- GFP_KERNEL|__GFP_REPEAT);
+ GFP_KERNEL);
}
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index a4a90a869999..6cfc48c94d4b 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -73,7 +73,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
cachep = PGT_CACHE(pdshift - pshift);
#endif
- new = kmem_cache_zalloc(cachep, GFP_KERNEL|__GFP_REPEAT);
+ new = kmem_cache_zalloc(cachep, GFP_KERNEL);
BUG_ON(pshift > HUGEPD_SHIFT_MASK);
BUG_ON((unsigned long)new & HUGEPD_SHIFT_MASK);
--
2.8.0.rc3
--
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