All of lore.kernel.org
 help / color / mirror / Atom feed
From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: [PATCH 5/5] ring-buffer: Remove unused macro RB_TIMESTAMPS_PER_PAGE
Date: Tue, 19 Oct 2010 13:54:37 -0400	[thread overview]
Message-ID: <20101019194204.680033652@goodmis.org> (raw)
In-Reply-To: 20101019175432.854431527@goodmis.org

[-- Attachment #1: 0005-ring-buffer-Remove-unused-macro-RB_TIMESTAMPS_PER_PA.patch --]
[-- Type: text/plain, Size: 883 bytes --]

From: Steven Rostedt <srostedt@redhat.com>

With the binding of time extends to events we no longer need to use
the macro RB_TIMESTAMPS_PER_PAGE. Remove it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ring_buffer.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index fda009a..bd31d97 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -448,9 +448,6 @@ static inline int test_time_stamp(u64 delta)
 /* Max payload is BUF_PAGE_SIZE - header (8bytes) */
 #define BUF_MAX_DATA_SIZE (BUF_PAGE_SIZE - (sizeof(u32) * 2))
 
-/* Max number of timestamps that can fit on a page */
-#define RB_TIMESTAMPS_PER_PAGE	(BUF_PAGE_SIZE / RB_LEN_TIME_EXTEND)
-
 int ring_buffer_print_page_header(struct trace_seq *s)
 {
 	struct buffer_data_page field;
-- 
1.7.1



      parent reply	other threads:[~2010-10-19 19:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-19 17:54 [PATCH 0/5] [GIT PULL] ring-buffer: Various optimizations Steven Rostedt
2010-10-19 17:54 ` [PATCH 1/5] ring-buffer: Make write slow path out of line Steven Rostedt
2010-10-19 17:54 ` [PATCH 2/5] ring-buffer: Bind time extend and data events together Steven Rostedt
2010-10-19 20:46   ` Thomas Gleixner
2010-10-20 13:06     ` Steven Rostedt
2010-10-19 17:54 ` [PATCH 3/5] ring-buffer: Remove condition to add timestamp in fast path Steven Rostedt
2010-10-19 17:54 ` [PATCH 4/5] ring-buffer: Micro-optimize with some strategic inlining Steven Rostedt
2010-10-19 17:54 ` Steven Rostedt [this message]

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=20101019194204.680033652@goodmis.org \
    --to=rostedt@goodmis.org \
    --cc=akpm@linux-foundation.org \
    --cc=fweisbec@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.