linux-kernel - [PATCH 0/2] userfaultfd: handle few NULL check inline

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Message-ID: <20241209132549.2878604-1-ruanjinjie@huawei.com>
Date: Mon, 9 Dec 2024 21:25:47 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <viro@...iv.linux.org.uk>, <brauner@...nel.org>, <jack@...e.cz>,
	<akpm@...ux-foundation.org>, <Liam.Howlett@...cle.com>,
	<lokeshgidra@...gle.com>, <lorenzo.stoakes@...cle.com>, <rppt@...nel.org>,
	<aarcange@...hat.com>, <ruanjinjie@...wei.com>, <Jason@...c4.com>,
	<linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-mm@...ck.org>
Subject: [PATCH 0/2] userfaultfd: handle few NULL check inline

Handle dup_userfaultfd() and anon_vma_fork() NULL check inline to
save some function call overhead. The Unixbench single core process
create has 1% improve with these patches.

Jinjie Ruan (2):
  userfaultfd: handle dup_userfaultfd() NULL check inline
  mm, rmap: handle anon_vma_fork() NULL check inline

 fs/userfaultfd.c              |  5 +----
 include/linux/rmap.h          | 12 +++++++++++-
 include/linux/userfaultfd_k.h | 11 ++++++++++-
 mm/rmap.c                     |  6 +-----
 4 files changed, 23 insertions(+), 11 deletions(-)

-- 
2.34.1