From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
YueHaibing <yuehaibing@huawei.com>
Subject: [for-next][PATCH 01/19] ring-buffer: Fix ring buffer size in rb_write_something()
Date: Wed, 03 Apr 2019 21:37:22 -0400 [thread overview]
Message-ID: <20190404013743.215647604@goodmis.org> (raw)
In-Reply-To: 20190404013721.023858792@goodmis.org
From: YueHaibing <yuehaibing@huawei.com>
'cnt' should be used to calculate ring buffer size rather than data->cnt
Link: http://lkml.kernel.org/r/1537704693-184237-1-git-send-email-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/trace/ring_buffer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 41b6f96e5366..4f33d7d841af 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4979,7 +4979,7 @@ static __init int rb_write_something(struct rb_test_data *data, bool nested)
cnt = data->cnt + (nested ? 27 : 0);
/* Multiply cnt by ~e, to make some unique increment */
- size = (data->cnt * 68 / 25) % (sizeof(rb_string) - 1);
+ size = (cnt * 68 / 25) % (sizeof(rb_string) - 1);
len = size + sizeof(struct rb_item);
--
2.20.1
next prev parent reply other threads:[~2019-04-04 1:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-04 1:37 [for-next][PATCH 00/19] tracing: Updates for 5.2 Steven Rostedt
2019-04-04 1:37 ` Steven Rostedt [this message]
2019-04-04 1:37 ` [for-next][PATCH 03/19] tracing: Add tracing error log Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 04/19] tracing: Save the last hist commands associated event name Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 05/19] tracing: Use tracing error_log with hist triggers Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 06/19] tracing: Use tracing error_log with trace event filters Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 07/19] tracing: Use tracing error_log with probe events Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 08/19] tracing: Add trace_array parameter to create_event_filter() Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 09/19] tracing: Have histogram code pass around trace_array for error handling Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 10/19] tracing: Have the error logs show up in the proper instances Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 11/19] selftests/ftrace: Add error_log testcase for probe errors Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 12/19] selftests/ftrace: Move kprobe/uprobe check_error() to test.d/functions Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 13/19] selftests/ftrace: Remove trigger-extended-error-support testcase Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 14/19] selftests/ftrace: Add tracing/error_log testcase Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 15/19] tracing: Add tracing/error_log Documentation Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 16/19] tracing: Add error_log to README Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 17/19] tracing: introduce TRACE_EVENT_NOP() Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 18/19] sched/fair: do not expose some tracepoints to user if CONFIG_SCHEDSTATS is not set Steven Rostedt
2019-04-04 1:37 ` [for-next][PATCH 19/19] rcu: validate arguments for rcu tracepoints Steven Rostedt
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