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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-05-07 03:57:49 +0200
committerSteven Rostedt <rostedt@goodmis.org>2014-05-14 17:37:25 +0200
commit66209a5bd4825e8890bfb65d48efa8a47c647fea (patch)
treeaf341436b09b04b83e33477b9d4197c5b0d718e6 /kernel/trace
parenttracing: Add trace_<tracepoint>_enabled() function (diff)
downloadlinux-66209a5bd4825e8890bfb65d48efa8a47c647fea.tar.xz
linux-66209a5bd4825e8890bfb65d48efa8a47c647fea.zip
ftrace: Remove boolean of hash_enable and hash_disable
Commit 4104d326b670 "ftrace: Remove global function list and call function directly" cleaned up the global_ops filtering and made the code simpler, but it left a variable "hash_enable" that was used to know if the hash functions should be updated or not. It was updated if the global_ops did not override them. As the global_ops are now no different than any other ftrace_ops, the hash always gets updated and there's no reason to use the hash_enable boolean. The same goes for hash_disable used in ftrace_shutdown(). Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ftrace.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 38e5cf73b9ae..2c99d1f7caf1 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2042,7 +2042,6 @@ static void ftrace_startup_enable(int command)
static int ftrace_startup(struct ftrace_ops *ops, int command)
{
- bool hash_enable = true;
int ret;
if (unlikely(ftrace_disabled))
@@ -2056,8 +2055,8 @@ static int ftrace_startup(struct ftrace_ops *ops, int command)
command |= FTRACE_UPDATE_CALLS;
ops->flags |= FTRACE_OPS_FL_ENABLED;
- if (hash_enable)
- ftrace_hash_rec_enable(ops, 1);
+
+ ftrace_hash_rec_enable(ops, 1);
ftrace_startup_enable(command);
@@ -2066,7 +2065,6 @@ static int ftrace_startup(struct ftrace_ops *ops, int command)
static int ftrace_shutdown(struct ftrace_ops *ops, int command)
{
- bool hash_disable = true;
int ret;
if (unlikely(ftrace_disabled))
@@ -2084,8 +2082,7 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command)
*/
WARN_ON_ONCE(ftrace_start_up < 0);
- if (hash_disable)
- ftrace_hash_rec_disable(ops, 1);
+ ftrace_hash_rec_disable(ops, 1);
if (!global_start_up)
ops->flags &= ~FTRACE_OPS_FL_ENABLED;