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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Namhyung Kim <namhyung.kim@lge.com>, <stable@vger.kernel.org>,
	Namhyung Kim <namhyung@kernel.org>
Subject: [for-next][PATCH 2/7] tracing: Fix off-by-one on allocating stat->pages
Date: Fri, 19 Apr 2013 10:04:04 -0400	[thread overview]
Message-ID: <20130419140556.537659608@goodmis.org> (raw)
In-Reply-To: 20130419140402.730041313@goodmis.org

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From: Namhyung Kim <namhyung.kim@lge.com>

The first page was allocated separately, so no need to start from 0.

Link: http://lkml.kernel.org/r/1364820385-32027-2-git-send-email-namhyung@kernel.org

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 548a1f7..c9f3149 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -676,7 +676,7 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat)
 
 	pages = DIV_ROUND_UP(functions, PROFILES_PER_PAGE);
 
-	for (i = 0; i < pages; i++) {
+	for (i = 1; i < pages; i++) {
 		pg->next = (void *)get_zeroed_page(GFP_KERNEL);
 		if (!pg->next)
 			goto out_free;
-- 
1.7.10.4



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       reply	other threads:[~2013-04-19 14:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20130419140402.730041313@goodmis.org>
2013-04-19 14:04 ` Steven Rostedt [this message]
2013-04-19 14:04 ` [for-next][PATCH 3/7] tracing: Reset ftrace_graph_filter_enabled if count is zero Steven Rostedt
2013-04-19 14:04 ` [for-next][PATCH 5/7] tracing: Check return value of tracing_init_dentry() Steven Rostedt

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