提交 33cd47dc 编写于 作者: J Jérôme Glisse 提交者: Linus Torvalds

mm/hmm: move hmm_pfns_clear() closer to where it is used

Move hmm_pfns_clear() closer to where it is used to make it clear it is
not use by page table walkers.

Link: http://lkml.kernel.org/r/20180323005527.758-13-jglisse@redhat.comSigned-off-by: NJérôme Glisse <jglisse@redhat.com>
Reviewed-by: NJohn Hubbard <jhubbard@nvidia.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 b2744118
...@@ -340,14 +340,6 @@ static int hmm_pfns_bad(unsigned long addr, ...@@ -340,14 +340,6 @@ static int hmm_pfns_bad(unsigned long addr,
return 0; return 0;
} }
static void hmm_pfns_clear(uint64_t *pfns,
unsigned long addr,
unsigned long end)
{
for (; addr < end; addr += PAGE_SIZE, pfns++)
*pfns = 0;
}
/* /*
* hmm_vma_walk_hole() - handle a range lacking valid pmd or pte(s) * hmm_vma_walk_hole() - handle a range lacking valid pmd or pte(s)
* @start: range virtual start address (inclusive) * @start: range virtual start address (inclusive)
...@@ -506,6 +498,14 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp, ...@@ -506,6 +498,14 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
return 0; return 0;
} }
static void hmm_pfns_clear(uint64_t *pfns,
unsigned long addr,
unsigned long end)
{
for (; addr < end; addr += PAGE_SIZE, pfns++)
*pfns = 0;
}
static void hmm_pfns_special(struct hmm_range *range) static void hmm_pfns_special(struct hmm_range *range)
{ {
unsigned long addr = range->start, i = 0; unsigned long addr = range->start, i = 0;
......
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