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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2018-08-09 19:06:59 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-08-10 22:12:39 +1000 |
| commit | 0b6aa1a20add96437c46db77c9bae2d7529dfbc1 (patch) | |
| tree | 00f0ccbcca86c8b89f42c1f0c382dfe774d89049 /arch | |
| parent | fce278af81daf8599f9e94883cbe43068b6c4785 (diff) | |
| download | linux-0b6aa1a20add96437c46db77c9bae2d7529dfbc1.tar.bz2 | |
powerpc/mm/tlbflush: update the mmu_gather page size while iterating address range
This patch makes sure we update the mmu_gather page size even if we are
requesting for a fullmm flush. This avoids triggering VM_WARN_ON in code
paths like __tlb_remove_page_size that explicitly check for removing range page
size to be same as mmu gather page size.
Fixes: 5a6099346c41 ("powerpc/64s/radix: tlb do not flush on page size when fullmm")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/tlb.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index 97ecef697e1b..f0e571b2dc7c 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -49,13 +49,11 @@ 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) { - tlb_flush_mmu(tlb); + if (!tlb->fullmm) + tlb_flush_mmu(tlb); /* * update the page size after flush for the new * mmu_gather. |