From: Andy Lutomirski <luto@amacapital.net>
To: Denys Vlasenko <dvlasenk@redhat.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Frederic Weisbecker <fweisbec@gmail.com>, X86 ML <x86@kernel.org>,
Alexei Starovoitov <ast@plumgrid.com>,
Will Drewry <wad@chromium.org>, Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH 16/17] x86: entry_64.S: trivial optimization for ENOSYS
Date: Sat, 9 Aug 2014 07:48:35 +0900 [thread overview]
Message-ID: <CALCETrW-DQWgiJM1gOaxmacNmxbsDHHsCEVKErXR_pmmQZC_4w@mail.gmail.com> (raw)
In-Reply-To: <1407519880-6719-17-git-send-email-dvlasenk@redhat.com>
On Sat, Aug 9, 2014 at 2:44 AM, Denys Vlasenko <dvlasenk@redhat.com> wrote:
> This code uses a slightly shorter insn.
See this for an alternative approach:
http://thread.gmane.org/gmane.linux.kernel.cross-arch/24167
--Andy
next prev parent reply other threads:[~2014-08-08 22:49 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-08 17:44 [PATCH v4 0/17] x86: entry.S optimizations Denys Vlasenko
2014-08-08 17:44 ` [PATCH 01/17] x86: entry_64.S: delete unused code Denys Vlasenko
2014-08-08 17:44 ` [PATCH 02/17] x86: ia32entry.S: fix wrong symbolic constant usage: R11->ARGOFFSET Denys Vlasenko
2014-08-08 17:44 ` [PATCH 03/17] x86: open-code register save/restore in trace_hardirqs thunks Denys Vlasenko
2014-08-08 17:44 ` [PATCH 04/17] x86: entry_64.S: fold SAVE_ARGS_IRQ macro into its sole user Denys Vlasenko
2014-08-08 17:44 ` [PATCH 05/17] x86: entry_64.S: always allocate complete "struct pt_regs" Denys Vlasenko
2014-08-08 17:44 ` [PATCH 06/17] x86: mass removal of ARGOFFSET Denys Vlasenko
2014-08-08 17:44 ` [PATCH 07/17] x86: rename some macros and labels, no code changes Denys Vlasenko
2014-08-08 17:44 ` [PATCH 08/17] x86: add comments about various syscall instructions, " Denys Vlasenko
2014-08-08 17:44 ` [PATCH 09/17] x86: entry_64.S: move save_paranoid and ret_from_fork closer to their users Denys Vlasenko
2014-08-08 17:44 ` [PATCH 10/17] x86: entry_64.S: rename save_paranoid to paranoid_entry, no code changes Denys Vlasenko
2014-08-08 17:44 ` [PATCH 11/17] x86: entry_64.S: fold test_in_nmi macro into its only user Denys Vlasenko
2014-08-08 17:44 ` [PATCH 12/17] x86: get rid of KERNEL_STACK_OFFSET Denys Vlasenko
2014-08-08 17:44 ` [PATCH 13/17] x86: ia32entry.S: fold IA32_ARG_FIXUP macro into its callers Denys Vlasenko
2014-08-08 17:44 ` [PATCH 14/17] x86: ia32entry.S: use mov instead of push/pop where possible Denys Vlasenko
2014-08-08 17:44 ` [PATCH 15/17] x86: code shrink in paranoid_exit Denys Vlasenko
2014-08-08 17:44 ` [PATCH 16/17] x86: entry_64.S: trivial optimization for ENOSYS Denys Vlasenko
2014-08-08 22:48 ` Andy Lutomirski [this message]
2014-08-08 17:44 ` [PATCH 17/17] x86: simplify iret stack handling on SYSCALL64 fastpath Denys Vlasenko
2014-08-08 22:59 ` Andy Lutomirski
2014-08-10 15:00 ` Denys Vlasenko
2014-08-10 22:42 ` Andy Lutomirski
2014-08-11 12:24 ` Denys Vlasenko
2014-08-11 20:06 ` Andy Lutomirski
2014-08-12 9:21 ` Denys Vlasenko
2014-08-13 1:02 ` Andy Lutomirski
2014-08-10 18:47 ` [PATCH 17/17 v2] " Denys Vlasenko
2014-08-09 0:27 ` [PATCH v4 0/17] x86: entry.S optimizations H. Peter Anvin
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=CALCETrW-DQWgiJM1gOaxmacNmxbsDHHsCEVKErXR_pmmQZC_4w@mail.gmail.com \
--to=luto@amacapital.net \
--cc=ast@plumgrid.com \
--cc=dvlasenk@redhat.com \
--cc=fweisbec@gmail.com \
--cc=hpa@zytor.com \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=oleg@redhat.com \
--cc=torvalds@linux-foundation.org \
--cc=wad@chromium.org \
--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).