From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org
Cc: peterz@infradead.org, linux-kernel@vger.kernel.org,
rostedt@goodmis.org, mhiramat@kernel.org, bristot@redhat.com,
jbaron@akamai.com, torvalds@linux-foundation.org,
tglx@linutronix.de, mingo@kernel.org, namit@vmware.com,
hpa@zytor.com, luto@kernel.org, ard.biesheuvel@linaro.org,
jpoimboe@redhat.com, pbonzini@redhat.com,
mathieu.desnoyers@efficios.com, linux@rasmusvillemoes.dk
Subject: [PATCH v5 00/17] Add static_call()
Date: Wed, 24 Jun 2020 17:30:24 +0200 [thread overview]
Message-ID: <20200624153024.794671356@infradead.org> (raw)
Hi all,
Hopefully for the last time...
static_call(), is the idea of static_branch() applied to indirect function
calls. Remove a data load (indirection) by modifying the text.
The inline implementation still relies on objtool to generate the
.static_call_sites section, mostly because this is a natural place for x86_64
and works for both GCC and LLVM. Other architectures can pick other means
if/when they implement the inline patching. The out-of-line (aka. trampoline)
variant doesn't require this.
Patches go on top of tip/objtool/core + tip/perf/core
Patches can also be found here:
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/static_call
Changes since the last time:
- Better documentation
- More consistent macro names
- Changed key prefix
- Folded trampoline definitions
- Renamed DEFINE_STATIC_COND_CALL / DEFINE_STATIC_CALL_NULL
next reply other threads:[~2020-06-24 15:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-24 15:30 Peter Zijlstra [this message]
2020-06-24 15:30 ` [PATCH v5 01/17] notifier: Fix broken error handling pattern Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 02/17] module: Fix up module_notifier return values Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 03/17] module: Properly propagate MODULE_STATE_COMING failure Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 04/17] jump_label,module: Fix module lifetime for __jump_label_mod_text_reserved Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 05/17] compiler.h: Make __ADDRESSABLE() symbol truly unique Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 06/17] static_call: Add basic static call infrastructure Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 07/17] static_call: Add inline " Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 08/17] static_call: Avoid kprobes on inline static_call()s Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 09/17] x86/static_call: Add out-of-line static call implementation Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 10/17] x86/static_call: Add inline static call implementation for x86-64 Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 11/17] static_call: Simple self-test Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 12/17] x86/alternatives: Teach text_poke_bp() to emulate RET Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 13/17] static_call: Add static_call_cond() Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 14/17] static_call: Handle tail-calls Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 15/17] static_call: Allow early init Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 16/17] tracepoint: Optimize using static_call() Peter Zijlstra
2020-07-09 8:58 ` [PATCH v5.1 " Peter Zijlstra
2020-06-24 15:30 ` [PATCH v5 17/17] x86/perf, static_call: Optimize x86_pmu methods Peter Zijlstra
2020-07-09 11:16 ` Peter Zijlstra
2020-07-09 9:02 ` [PATCH v5 00/17] Add static_call() Peter Zijlstra
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=20200624153024.794671356@infradead.org \
--to=peterz@infradead.org \
--cc=ard.biesheuvel@linaro.org \
--cc=bristot@redhat.com \
--cc=hpa@zytor.com \
--cc=jbaron@akamai.com \
--cc=jpoimboe@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@rasmusvillemoes.dk \
--cc=luto@kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mhiramat@kernel.org \
--cc=mingo@kernel.org \
--cc=namit@vmware.com \
--cc=pbonzini@redhat.com \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.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