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lttng-modules v0.19-stable: setup_trace_write: Fix recursive locking
[lttng-modules.git]
/
ltt-relay-alloc.c
diff --git
a/ltt-relay-alloc.c
b/ltt-relay-alloc.c
index 6ff552efacc06cb5506f23090a34833533e5783e..03a6ffa0e83827fccc58b19db953f762e7527e8c 100644
(file)
--- a/
ltt-relay-alloc.c
+++ b/
ltt-relay-alloc.c
@@
-360,7
+360,7
@@
void ltt_chan_alloc_remove_files(struct ltt_chan_alloc *chan)
* Wait for every reference to the dentry to be gone,
* except us.
*/
* Wait for every reference to the dentry to be gone,
* except us.
*/
- while (
atomic_read(&
dentry->d_count) != 1)
+ while (
ACCESS_ONCE(
dentry->d_count) != 1)
msleep(100);
dput(dentry);
}
msleep(100);
dput(dentry);
}
@@
-716,9
+716,14
@@
void *ltt_relay_offset_address(struct ltt_chanbuf_alloc *bufa, size_t offset)
}
EXPORT_SYMBOL_GPL(ltt_relay_offset_address);
}
EXPORT_SYMBOL_GPL(ltt_relay_offset_address);
+static struct notifier_block ltt_relay_hotcpu = {
+ .notifier_call = ltt_relay_hotcpu_callback,
+ .priority = 5,
+};
+
static __init int ltt_relay_alloc_init(void)
{
static __init int ltt_relay_alloc_init(void)
{
-
hotcpu_notifier(ltt_relay_hotcpu_callback, 5
);
+
register_cpu_notifier(<t_relay_hotcpu
);
ltt_relay_init();
ltt_ascii_init();
return 0;
ltt_relay_init();
ltt_ascii_init();
return 0;
@@
-728,6
+733,7
@@
static void __exit ltt_relay_alloc_exit(void)
{
ltt_ascii_exit();
ltt_relay_exit();
{
ltt_ascii_exit();
ltt_relay_exit();
+ unregister_cpu_notifier(<t_relay_hotcpu);
}
module_init(ltt_relay_alloc_init);
}
module_init(ltt_relay_alloc_init);
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