Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-09 23:39:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

tracing: Simplify defining of the next event id

Browse Source 
The value to be used and compared in trace_search_list() is "last + 1".
Let's just define next to be "last + 1" instead of doing the addition
each time.

Link: https://lkml.kernel.org/r/20200703020612.12930-2-richard.weiyang@linux.alibaba.com

Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Wei Yang 2020-07-03 10:06:09 +08:00 committed by Steven Rostedt (VMware)
parent 29ce24519c
commit 746cf3459f
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
kernel/trace/trace_output.c
View File

@ -675,11 +675,11 @@ static LIST_HEAD(ftrace_event_list);
static int trace_search_list(struct list_head **list)
{
struct trace_event *e;
int last = __TRACE_LAST_TYPE;
int next = __TRACE_LAST_TYPE + 1;
if (list_empty(&ftrace_event_list)) {
*list = &ftrace_event_list;
return last + 1;
return next;
}
/*
@ -687,17 +687,17 @@ static int trace_search_list(struct list_head **list)
* lets see if somebody freed one.
*/
list_for_each_entry(e, &ftrace_event_list, list) {
if (e->type != last + 1)
if (e->type != next)
break;
last++;
next++;
}
/* Did we used up all 65 thousand events??? */
if ((last + 1) > TRACE_EVENT_TYPE_MAX)
if (next > TRACE_EVENT_TYPE_MAX)
return 0;
*list = &e->list;
return last + 1;
return next;
}
void trace_event_read_lock(void)