Messages in this thread | | | Date | Mon, 5 Feb 2024 15:53:54 -0800 | From | Charlie Jenkins <> | Subject | Re: [PATCH -fixes] riscv: Flush the tlb when a page directory is freed |
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On Sun, Jan 28, 2024 at 01:04:05PM +0100, Alexandre Ghiti wrote: > The riscv privileged specification mandates to flush the TLB whenever a > page directory is modified, so add that to tlb_flush(). > > Fixes: c5e9b2c2ae82 ("riscv: Improve tlb_flush()") > Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> > --- > arch/riscv/include/asm/tlb.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h > index 1eb5682b2af6..50b63b5c15bd 100644 > --- a/arch/riscv/include/asm/tlb.h > +++ b/arch/riscv/include/asm/tlb.h > @@ -16,7 +16,7 @@ static void tlb_flush(struct mmu_gather *tlb); > static inline void tlb_flush(struct mmu_gather *tlb) > { > #ifdef CONFIG_MMU > - if (tlb->fullmm || tlb->need_flush_all) > + if (tlb->fullmm || tlb->need_flush_all || tlb->freed_tables) > flush_tlb_mm(tlb->mm); > else > flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end, > -- > 2.39.2 > > > _______________________________________________ > linux-riscv mailing list > linux-riscv@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-riscv
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
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