From: Linus Torvalds <torvalds@linux-foundation.org>
To: Waiman Long <longman@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Will Deacon <will.deacon@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
"linux-alpha@vger.kernel.org" <linux-alpha@vger.kernel.org>,
"linux-alpha@vger.kernel.org"
<linux-arm-kernel@lists.infradead.org>,
linux-c6x-dev@linux-c6x.org,
uclinux-h8-devel@lists.sourceforge.jp,
linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-m68k <linux-m68k@lists.linux-m68k.org>,
linux-mips@vger.kernel.org, nios2-dev@lists.rocketboards.org,
openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org,
Linux-sh list <linux-sh@vger.kernel.org>,
sparclinux@vger.kernel.org, linux-um@lists.infradead.org,
linux-xtensa@linux-xtensa.org,
linux-arch <linux-arch@vger.kernel.org>,
"the arch/x86 maintainers" <x86@kernel.org>,
Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Andrew Morton <akpm@linux-foundation.org>,
Tim Chen <tim.c.chen@linux.intel.com>
Subject: Re: [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock()
Date: Fri, 22 Mar 2019 10:08:29 -0700 [thread overview]
Message-ID: <CAHk-=wi0wwmY-waC1-2SmBz4-XK-Eru2RTx6PrGzUK=P1nwexQ@mail.gmail.com> (raw)
In-Reply-To: <20190322143008.21313-4-longman@redhat.com>
On Fri, Mar 22, 2019 at 7:30 AM Waiman Long <longman@redhat.com> wrote:
>
> Modify __down_read_trylock() to optimize for an unlocked rwsem and make
> it generate slightly better code.
Oh, that should teach me to read all patches in the series before
starting to comment on them.
So ignore my comment on #1.
Linus
next prev parent reply other threads:[~2019-03-22 17:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 14:30 [PATCH v5 0/3] locking/rwsem: Rwsem rearchitecture part 0 Waiman Long
2019-03-22 14:30 ` [PATCH v5 1/3] locking/rwsem: Remove arch specific rwsem files Waiman Long
2019-03-22 17:01 ` Linus Torvalds
2019-03-22 17:23 ` Waiman Long
2019-03-22 19:30 ` Davidlohr Bueso
2019-03-22 20:27 ` Waiman Long
2019-04-03 10:44 ` [tip:locking/core] " tip-bot for Waiman Long
2019-04-03 12:47 ` Peter Zijlstra
2019-04-03 12:55 ` tip-bot for Waiman Long
2019-03-22 14:30 ` [PATCH v5 2/3] locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs Waiman Long
2019-03-22 17:07 ` Linus Torvalds
2019-04-03 10:44 ` [tip:locking/core] " tip-bot for Waiman Long
2019-04-03 12:55 ` tip-bot for Waiman Long
2019-03-22 14:30 ` [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock() Waiman Long
2019-03-22 17:08 ` Linus Torvalds [this message]
2019-03-22 17:25 ` Russell King - ARM Linux admin
2019-03-22 17:41 ` Waiman Long
2019-03-25 15:25 ` Christophe Leroy
2019-04-03 10:45 ` [tip:locking/core] " tip-bot for Waiman Long
2019-04-03 12:56 ` tip-bot for Waiman Long
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='CAHk-=wi0wwmY-waC1-2SmBz4-XK-Eru2RTx6PrGzUK=P1nwexQ@mail.gmail.com' \
--to=torvalds@linux-foundation.org \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=dave@stgolabs.net \
--cc=hpa@zytor.com \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-c6x-dev@linux-c6x.org \
--cc=linux-hexagon@vger.kernel.org \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-parisc@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linux-um@lists.infradead.org \
--cc=linux-xtensa@linux-xtensa.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=longman@redhat.com \
--cc=mingo@redhat.com \
--cc=nios2-dev@lists.rocketboards.org \
--cc=openrisc@lists.librecores.org \
--cc=peterz@infradead.org \
--cc=sparclinux@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=tim.c.chen@linux.intel.com \
--cc=uclinux-h8-devel@lists.sourceforge.jp \
--cc=will.deacon@arm.com \
--cc=x86@kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).