diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-07-25 16:58:06 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-08-07 14:49:26 +0300 |
| commit | 5a6099346c41792f1ba23aea6f74ad816e7fecd4 (patch) | |
| tree | e5056b2d56e92e09ea08d6def595911674117778 /arch | |
| parent | d97e7f198b10ea9d17ea64606f18102260870782 (diff) | |
| download | linux-5a6099346c41792f1ba23aea6f74ad816e7fecd4.tar.xz | |
powerpc/64s/radix: tlb do not flush on page size when fullmm
When the mm is being torn down there will be a full PID flush so
there is no need to flush the TLB on page size changes.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/tlb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index 6d2ba7c779dc..97ecef697e1b 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -49,6 +49,9 @@ static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, unsigned int page_size) { + if (tlb->fullmm) + return; + if (!tlb->page_size) tlb->page_size = page_size; else if (tlb->page_size != page_size) { |