From: Matthew Wilcox <willy@infradead.org>
To: Jinjie Ruan <ruanjinjie@huawei.com>
Cc: viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz,
akpm@linux-foundation.org, Liam.Howlett@oracle.com,
lokeshgidra@google.com, lorenzo.stoakes@oracle.com,
rppt@kernel.org, aarcange@redhat.com, Jason@zx2c4.com,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH 2/2] mm, rmap: handle anon_vma_fork() NULL check inline
Date: Mon, 9 Dec 2024 13:35:39 +0000 [thread overview]
Message-ID: <Z1byK9X59RHFJMHZ@casper.infradead.org> (raw)
In-Reply-To: <20241209132549.2878604-3-ruanjinjie@huawei.com>
On Mon, Dec 09, 2024 at 09:25:49PM +0800, Jinjie Ruan wrote:
> Check the anon_vma of pvma inline so we can avoid the function call
> overhead if the anon_vma is NULL.
This really gets you 1% perf improvement? On what hardware?
next prev parent reply other threads:[~2024-12-09 13:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-09 13:25 [PATCH 0/2] userfaultfd: handle few " Jinjie Ruan
2024-12-09 13:25 ` [PATCH 1/2] userfaultfd: handle dup_userfaultfd() " Jinjie Ruan
2024-12-09 13:25 ` [PATCH 2/2] mm, rmap: handle anon_vma_fork() " Jinjie Ruan
2024-12-09 13:35 ` Matthew Wilcox [this message]
2024-12-10 2:25 ` Jinjie Ruan
2024-12-09 13:42 ` [PATCH 0/2] userfaultfd: handle few " Lorenzo Stoakes
2024-12-10 1:21 ` Jinjie Ruan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Z1byK9X59RHFJMHZ@casper.infradead.org \
--to=willy@infradead.org \
--cc=Jason@zx2c4.com \
--cc=Liam.Howlett@oracle.com \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=brauner@kernel.org \
--cc=jack@suse.cz \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lokeshgidra@google.com \
--cc=lorenzo.stoakes@oracle.com \
--cc=rppt@kernel.org \
--cc=ruanjinjie@huawei.com \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox