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authorMichal Marek <mmarek@suse.cz>2011-06-07 15:37:51 +0200
committerMichal Marek <mmarek@suse.cz>2011-06-07 15:37:51 +0200
commit2e483528cebad089d0bb3f9aebb0ada22d968ffa (patch)
treed701405826b271e819a9a8500838cebd37b1364a /kernel/tracepoint.c
parent163d3fe6a2357aba7b18b938d6ae6ce9570324e4 (diff)
parent55922c9d1b84b89cb946c777fddccb3247e7df2c (diff)
Merge commit 'v3.0-rc1' into kbuild/kbuild
Diffstat (limited to 'kernel/tracepoint.c')
-rw-r--r--kernel/tracepoint.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 68187af4889e..b219f1449c54 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -251,9 +251,9 @@ static void set_tracepoint(struct tracepoint_entry **entry,
{
WARN_ON(strcmp((*entry)->name, elem->name) != 0);
- if (elem->regfunc && !elem->state && active)
+ if (elem->regfunc && !jump_label_enabled(&elem->key) && active)
elem->regfunc();
- else if (elem->unregfunc && elem->state && !active)
+ else if (elem->unregfunc && jump_label_enabled(&elem->key) && !active)
elem->unregfunc();
/*
@@ -264,13 +264,10 @@ static void set_tracepoint(struct tracepoint_entry **entry,
* is used.
*/
rcu_assign_pointer(elem->funcs, (*entry)->funcs);
- if (!elem->state && active) {
- jump_label_enable(&elem->state);
- elem->state = active;
- } else if (elem->state && !active) {
- jump_label_disable(&elem->state);
- elem->state = active;
- }
+ if (active && !jump_label_enabled(&elem->key))
+ jump_label_inc(&elem->key);
+ else if (!active && jump_label_enabled(&elem->key))
+ jump_label_dec(&elem->key);
}
/*
@@ -281,13 +278,11 @@ static void set_tracepoint(struct tracepoint_entry **entry,
*/
static void disable_tracepoint(struct tracepoint *elem)
{
- if (elem->unregfunc && elem->state)
+ if (elem->unregfunc && jump_label_enabled(&elem->key))
elem->unregfunc();
- if (elem->state) {
- jump_label_disable(&elem->state);
- elem->state = 0;
- }
+ if (jump_label_enabled(&elem->key))
+ jump_label_dec(&elem->key);
rcu_assign_pointer(elem->funcs, NULL);
}