[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <lsq.1558022132.466502981@decadent.org.uk>
Date: Thu, 16 May 2019 16:55:32 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
"Peter Zijlstra" <peterz@...radead.org>,
"Thomas Gleixner" <tglx@...utronix.de>,
"Borislav Petkov" <bp@...en8.de>,
"Steven Rostedt" <rostedt@...dmis.org>,
"Linus Torvalds" <torvalds@...ux-foundation.org>,
"Ingo Molnar" <mingo@...nel.org>,
"Jason Baron" <jbaron@...mai.com>, "Mel Gorman" <mgorman@...e.de>
Subject: [PATCH 3.16 03/86] jump_label: Fix small typos in the documentation
3.16.68-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Ingo Molnar <mingo@...nel.org>
commit fd3cbdc0d1b5254a2e8793df58c409b469899a3f upstream.
Was reading through the documentation of this code and noticed
a few typos, missing commas, etc.
Cc: Jason Baron <jbaron@...mai.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Mel Gorman <mgorman@...e.de>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
include/linux/jump_label.h | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -8,28 +8,28 @@
* Copyright (C) 2011-2012 Peter Zijlstra <pzijlstr@...hat.com>
*
* Jump labels provide an interface to generate dynamic branches using
- * self-modifying code. Assuming toolchain and architecture support the result
- * of a "if (static_key_false(&key))" statement is a unconditional branch (which
+ * self-modifying code. Assuming toolchain and architecture support, the result
+ * of a "if (static_key_false(&key))" statement is an unconditional branch (which
* defaults to false - and the true block is placed out of line).
*
* However at runtime we can change the branch target using
* static_key_slow_{inc,dec}(). These function as a 'reference' count on the key
- * object and for as long as there are references all branches referring to
+ * object, and for as long as there are references all branches referring to
* that particular key will point to the (out of line) true block.
*
- * Since this relies on modifying code the static_key_slow_{inc,dec}() functions
+ * Since this relies on modifying code, the static_key_slow_{inc,dec}() functions
* must be considered absolute slow paths (machine wide synchronization etc.).
- * OTOH, since the affected branches are unconditional their runtime overhead
+ * OTOH, since the affected branches are unconditional, their runtime overhead
* will be absolutely minimal, esp. in the default (off) case where the total
* effect is a single NOP of appropriate size. The on case will patch in a jump
* to the out-of-line block.
*
- * When the control is directly exposed to userspace it is prudent to delay the
+ * When the control is directly exposed to userspace, it is prudent to delay the
* decrement to avoid high frequency code modifications which can (and do)
* cause significant performance degradation. Struct static_key_deferred and
* static_key_slow_dec_deferred() provide for this.
*
- * Lacking toolchain and or architecture support, it falls back to a simple
+ * Lacking toolchain and or architecture support, jump labels fall back to a simple
* conditional branch.
*
* struct static_key my_key = STATIC_KEY_INIT_TRUE;
@@ -43,8 +43,7 @@
*
* Not initializing the key (static data is initialized to 0s anyway) is the
* same as using STATIC_KEY_INIT_FALSE.
- *
-*/
+ */
#include <linux/types.h>
#include <linux/compiler.h>
Powered by blists - more mailing lists