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powerpc/mm: make gup_hugepte() static 

gup_huge_pd() is the only user of gup_hugepte() and it is
located in the same file. This patch moves gup_huge_pd()
after gup_hugepte() and makes gup_hugepte() static.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-04-26 05:59:43 +00:00 committed by Michael Ellerman
parent b7dcf96ce0
commit 0001e5aa5c
2 changed files with 19 additions and 22 deletions
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3
arch/powerpc/include/asm/pgtable.h
View File

@ -89,9 +89,6 @@ extern void paging_init(void);
*/
extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
unsigned long end, int write,
struct page **pages, int *nr);
#ifndef CONFIG_TRANSPARENT_HUGEPAGE
#define pmd_large(pmd) 0
#endif

38
arch/powerpc/mm/hugetlbpage.c
View File

@ -539,23 +539,6 @@ static unsigned long hugepte_addr_end(unsigned long addr, unsigned long end,
return (__boundary - 1 < end - 1) ? __boundary : end;
}
int gup_huge_pd(hugepd_t hugepd, unsigned long addr, unsigned pdshift,
unsigned long end, int write, struct page **pages, int *nr)
{
pte_t *ptep;
unsigned long sz = 1UL << hugepd_shift(hugepd);
unsigned long next;
ptep = hugepte_offset(hugepd, addr, pdshift);
do {
next = hugepte_addr_end(addr, end, sz);
if (!gup_hugepte(ptep, sz, addr, end, write, pages, nr))
return 0;
} while (ptep++, addr = next, addr != end);
return 1;
}
#ifdef CONFIG_PPC_MM_SLICES
unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
@ -751,8 +734,8 @@ void flush_dcache_icache_hugepage(struct page *page)
}
}
int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
static int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
{
unsigned long pte_end;
struct page *head, *page;
@ -798,3 +781,20 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
return 1;
}
int gup_huge_pd(hugepd_t hugepd, unsigned long addr, unsigned int pdshift,
unsigned long end, int write, struct page **pages, int *nr)
{
pte_t *ptep;
unsigned long sz = 1UL << hugepd_shift(hugepd);
unsigned long next;
ptep = hugepte_offset(hugepd, addr, pdshift);
do {
next = hugepte_addr_end(addr, end, sz);
if (!gup_hugepte(ptep, sz, addr, end, write, pages, nr))
return 0;
} while (ptep++, addr = next, addr != end);
return 1;
}