From: Linus Torvalds <torvalds@linux-foundation.org>
To: Joel Fernandes <joel@joelfernandes.org>
Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-mm@kvack.org, Shuah Khan <shuah@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>, Michal Hocko <mhocko@suse.com>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Kirill A Shutemov <kirill@shutemov.name>,
"Liam R. Howlett" <liam.howlett@oracle.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Suren Baghdasaryan <surenb@google.com>
Subject: Re: [PATCH v2 1/4] mm/mremap: Optimize the start addresses in move_page_tables()
Date: Fri, 19 May 2023 21:01:07 -0700 [thread overview]
Message-ID: <CAHk-=wh3tjw+MNxe6zuixtD=D8bXYHWs9h3Y++r5ObTcSvz6+A@mail.gmail.com> (raw)
In-Reply-To: <CAEXW_YTqjGG4Y06brQthe4UMqprTJm=xk=P7i5gTpm2rZRZkXQ@mail.gmail.com>
On Fri, May 19, 2023 at 8:57 PM Joel Fernandes <joel@joelfernandes.org> wrote:
>
> I also realize that I don't really need to check whether the masked
> source address falls under a VMA neighboring to that of the source's.
I don't think that's true.
You can't start randomly moving other source vma's that may have other contents.
Linus
next prev parent reply other threads:[~2023-05-20 4:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 19:09 [PATCH v2 0/4] Optimize mremap during mutual alignment within PMD Joel Fernandes (Google)
2023-05-19 19:09 ` [PATCH v2 1/4] mm/mremap: Optimize the start addresses in move_page_tables() Joel Fernandes (Google)
2023-05-19 19:21 ` Linus Torvalds
2023-05-19 22:52 ` Joel Fernandes
2023-05-20 2:34 ` Linus Torvalds
2023-05-20 3:17 ` Joel Fernandes
2023-05-20 3:56 ` Joel Fernandes
2023-05-20 4:01 ` Linus Torvalds [this message]
2023-05-20 4:14 ` Joel Fernandes
2023-05-20 4:22 ` Joel Fernandes
2023-05-20 5:04 ` Joel Fernandes
2023-05-19 19:09 ` [PATCH v2 2/4] selftests: mm: Fix failure case when new remap region was not found Joel Fernandes (Google)
2023-05-19 19:09 ` [PATCH v2 3/4] selftests: mm: Add a test for mutually aligned moves > PMD size Joel Fernandes (Google)
2023-05-19 19:09 ` [PATCH v2 4/4] selftests: mm: Add a test for remapping to area immediately after existing mapping Joel Fernandes (Google)
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