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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-12-01 09:06:50 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-12-14 15:19:12 +1100 |
| commit | c6a3c495f05a070d4c4016d4a51c384cba723971 (patch) | |
| tree | 6d80845b8ff67e57533312085de88c5fb67c16d2 /arch/powerpc/mm/hugepage-hash64.c | |
| parent | a43c0eb8364c022725df586e91dd753633374d66 (diff) | |
| download | linux-stable-c6a3c495f05a070d4c4016d4a51c384cba723971.tar.gz linux-stable-c6a3c495f05a070d4c4016d4a51c384cba723971.tar.bz2 linux-stable-c6a3c495f05a070d4c4016d4a51c384cba723971.zip | |
powerpc/mm: Add helper for converting pte bit to hpte bits
Instead of open coding it in multiple code paths, export the helper
and add more documentation. Also make sure we don't make assumption
regarding pte bit position
Acked-by: Scott Wood <scottwood@freescale.com>
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/hugepage-hash64.c')
| -rw-r--r-- | arch/powerpc/mm/hugepage-hash64.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c index 4d87122cf6a7..91fcac6f989d 100644 --- a/arch/powerpc/mm/hugepage-hash64.c +++ b/arch/powerpc/mm/hugepage-hash64.c @@ -54,18 +54,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, new_pmd |= _PAGE_DIRTY; } while (old_pmd != __cmpxchg_u64((unsigned long *)pmdp, old_pmd, new_pmd)); - /* - * PP bits. _PAGE_USER is already PP bit 0x2, so we only - * need to add in 0x1 if it's a read-only user page - */ - rflags = new_pmd & _PAGE_USER; - if ((new_pmd & _PAGE_USER) && !((new_pmd & _PAGE_RW) && - (new_pmd & _PAGE_DIRTY))) - rflags |= 0x1; - /* - * _PAGE_EXEC -> HW_NO_EXEC since it's inverted - */ - rflags |= ((new_pmd & _PAGE_EXEC) ? 0 : HPTE_R_N); + rflags = htab_convert_pte_flags(new_pmd); #if 0 if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) { |