diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-10-24 13:28:01 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-05 22:24:18 +1100 |
| commit | 864edb758c50c30787bb51f2e26c4be2b4937025 (patch) | |
| tree | f56aaca43f439457b474ec82ab3cb7ed8cebf7b1 /arch | |
| parent | 52162ec784fa05f3a4b1d8e84421279998be3773 (diff) | |
powerpc/mm/book3s64/radix: Flush the full mm even when need_flush_all is set
With the previous patch, we should now not be using need_flush_all for
powerpc. But then make sure we force a PID tlbie flush with RIC=2 if
we ever find need_flush_all set. Also don't reset it after a mmu
gather flush.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191024075801.22434-3-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/mm/book3s64/radix_tlb.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c index f9a4d5793f03..a95175c0972b 100644 --- a/arch/powerpc/mm/book3s64/radix_tlb.c +++ b/arch/powerpc/mm/book3s64/radix_tlb.c @@ -995,7 +995,7 @@ void radix__tlb_flush(struct mmu_gather *tlb) * that flushes the process table entry cache upon process teardown. * See the comment for radix in arch_exit_mmap(). */ - if (tlb->fullmm) { + if (tlb->fullmm || tlb->need_flush_all) { __flush_all_mm(mm, true); } else if ( (psize = radix_get_mmu_psize(page_size)) == -1) { if (!tlb->freed_tables) @@ -1008,7 +1008,6 @@ void radix__tlb_flush(struct mmu_gather *tlb) else radix__flush_tlb_pwc_range_psize(mm, start, end, psize); } - tlb->need_flush_all = 0; } static __always_inline void __radix__flush_tlb_range_psize(struct mm_struct *mm, |