[PATCH 082/118] tracing: Fix off-by-one on allocating stat->pages
Luis Henriques
luis.henriques at canonical.com
Tue May 7 13:38:48 UTC 2013
3.5.7.12 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Namhyung Kim <namhyung.kim at lge.com>
commit 39e30cd1537937d3c00ef87e865324e981434e5b upstream.
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 at gmail.com>
Cc: Namhyung Kim <namhyung.kim at lge.com>
Signed-off-by: Namhyung Kim <namhyung at kernel.org>
Signed-off-by: Steven Rostedt <rostedt at goodmis.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
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 38353bf..80b2000 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -624,7 +624,7 @@ 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;
--
1.8.1.2
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