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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2014-11-02 18:45:28 +0300 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-12-02 06:10:11 +0300 |
| commit | d557b09800dab5dd6804e5b79324069abcf0be11 (patch) | |
| tree | cb28d3966042edb834d23341d9f98bdf95c1646c /arch/powerpc/mm/pgtable_64.c | |
| parent | f1581bf14bc40b4a14bf10358eac0b22173b3313 (diff) | |
| download | linux-d557b09800dab5dd6804e5b79324069abcf0be11.tar.xz | |
powerpc/mm/thp: Use tlbiel if possible
If we know that user address space has never executed on other cpus
we could use tlbiel.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index c175c990580e..eea9fa1f8ae7 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -739,9 +739,10 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, unsigned long old_pmd) { - int ssize; + int ssize, local = 0; unsigned int psize; unsigned long vsid; + const struct cpumask *tmp; /* get the base page size,vsid and segment size */ #ifdef CONFIG_DEBUG_VM @@ -762,7 +763,11 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, ssize = mmu_kernel_ssize; } - return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize); + tmp = cpumask_of(smp_processor_id()); + if (cpumask_equal(mm_cpumask(mm), tmp)) + local = 1; + + return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, local); } static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot) |