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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) MIME-Version: 1.0 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: D616B14001C X-Stat-Signature: aqyggja1tcf9ui5iku4s1crfqubdiuas X-Rspam-User: X-HE-Tag: 1756908104-506463 X-HE-Meta: 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 J9pzDuel sG/PZT0G6mG/0bIEeBsVE3OaRCgqabS3K/pVQ5sc+ZjQ4d/JOuCo8V+EYTZfqLt7lSBsKBBFd7a7OU02vM6gsT0Th8mjeyKf1a6RU/Zt7/qUg9Fzl4F08jAXDO3CVrh9xXPyY8A51zD5CFN6AfdvkzaxpjRwrN0mLQEVN/lj5WPkXuWu4crUUQ6dG4+omKBfusJj2NIQhGM3dhOJCyRtxJ2w8pqmm4Emzm4X3py4NZ/UBuNb4Rv3AebX2PheEh9FIs3pRPoTiGK4IeiJc/n8Qq1xZy/xkQQKXnqYqwYIwkNCneW8= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 2025-09-02 at 08:50 -0700, Dave Hansen wrote: > On 9/2/25 08:44, Giovanni Cabiddu wrote: > > diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c > > index 39f80111e6f1..e66c7662c254 100644 > > --- a/arch/x86/mm/tlb.c > > +++ b/arch/x86/mm/tlb.c > > @@ -1459,7 +1459,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, > > unsigned long start, > > =C2=A0 > > =C2=A0 put_flush_tlb_info(); > > =C2=A0 put_cpu(); > > - mmu_notifier_arch_invalidate_secondary_tlbs(mm, start, > > end); > > + mmu_notifier_arch_invalidate_secondary_tlbs(mm, info- > > >start, info->end); > > =C2=A0} >=20 > That does look like the right solution. >=20 > This is the downside of wrapping everything up in that 'info' struct; > it's not obvious that the canonical source of the start/end > information > moved from those variables into the structure. >=20 > Rik, is that your read on it too? >=20 In flush_tlb_mm_range(), we only need to flush from start to end. The same should be true for the mmu notifier. The only reason info->start and info->end can be modified is because a global TLB flush can be faster than a ranged one. I can't think of any reason why that should affect the range the mmu notifier needs to flush. --=20 All Rights Reversed.