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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-03-30 10:41:04 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-04-17 11:23:40 +1000 |
| commit | 7d6e7f7ffaba4e013c7a0589140431799bc17985 (patch) | |
| tree | e562ffe3cd9799537221f9277e36787412ef2f40 /arch/powerpc/mm | |
| parent | 691e95fd7396905a38d98919e9c150dbc3ea21a3 (diff) | |
| download | linux-7d6e7f7ffaba4e013c7a0589140431799bc17985.tar.bz2 | |
powerpc/mm/thp: Return pte address if we find trans_splitting.
For THP that is marked trans splitting, we return the pte.
This require the callers to handle the pmd_trans_splitting scenario,
if they care. All the current callers are either looking at pfn or
write_ok, hence we don't need to update them.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index a9dbb27ca887..0ce968b00b7c 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -1014,12 +1014,11 @@ pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea, * A hugepage collapse is captured by pmd_none, because * it mark the pmd none and do a hpte invalidate. * - * A hugepage split is captured by pmd_trans_splitting - * because we mark the pmd trans splitting and do a - * hpte invalidate - * + * We don't worry about pmd_trans_splitting here, The + * caller if it needs to handle the splitting case + * should check for that. */ - if (pmd_none(pmd) || pmd_trans_splitting(pmd)) + if (pmd_none(pmd)) return NULL; if (pmd_huge(pmd) || pmd_large(pmd)) { |