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tracing: Fix off-by-one on allocating stat->pages
author
Namhyung Kim
<namhyung.kim@lge.com>
Mon, 1 Apr 2013 12:46:24 +0000
(21:46 +0900)
committer
Ben Hutchings
<ben@decadent.org.uk>
Mon, 13 May 2013 14:02:16 +0000
(15:02 +0100)
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@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
kernel/trace/ftrace.c
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diff --git
a/kernel/trace/ftrace.c
b/kernel/trace/ftrace.c
index
5527211
..
df92c84
100644
(file)
--- a/
kernel/trace/ftrace.c
+++ b/
kernel/trace/ftrace.c
@@
-554,7
+554,7
@@
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;