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Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core

This commit is contained in:
Ingo Molnar 2011-10-17 20:53:25 +02:00
parent c73a3cb356 436fc28026
commit 53b0a61a9d
1 changed files with 4 additions and 4 deletions
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8
kernel/trace/trace.c
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@ -2720,9 +2720,9 @@ static const char readme_msg[] =
"# cat /sys/kernel/debug/tracing/trace_options\n"
"noprint-parent nosym-offset nosym-addr noverbose\n"
"# echo print-parent > /sys/kernel/debug/tracing/trace_options\n"
"# echo 1 > /sys/kernel/debug/tracing/tracing_enabled\n"
"# echo 1 > /sys/kernel/debug/tracing/tracing_on\n"
"# cat /sys/kernel/debug/tracing/trace > /tmp/trace.txt\n"
"# echo 0 > /sys/kernel/debug/tracing/tracing_enabled\n"
"# echo 0 > /sys/kernel/debug/tracing/tracing_on\n"
;
static ssize_t
@ -3903,8 +3903,6 @@ tracing_buffers_read(struct file *filp, char __user *ubuf,
if (info->read < PAGE_SIZE)
goto read;
info->read = 0;
trace_access_lock(info->cpu);
ret = ring_buffer_read_page(info->tr->buffer,
&info->spare,
@ -3914,6 +3912,8 @@ tracing_buffers_read(struct file *filp, char __user *ubuf,
if (ret < 0)
return 0;
info->read = 0;
read:
size = PAGE_SIZE - info->read;
if (size > count)