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Free existing per-thread task structs when unloading linuxkpi.ko.

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They are otherwise leaked.

Reported and tested by:	ae
MFC after:		1 week
This commit is contained in:
Mark Johnston 2017-07-09 22:57:00 +00:00
parent 8ee96d1452
commit abf5c031bb
1 changed files with 17 additions and 0 deletions
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17
sys/compat/linuxkpi/common/src/linux_current.c
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@ -226,6 +226,23 @@ SYSINIT(linux_current, SI_SUB_EVENTHANDLER, SI_ORDER_SECOND, linux_current_init,
static void
linux_current_uninit(void *arg __unused)
{
struct proc *p;
struct task_struct *ts;
struct thread *td;
sx_slock(&allproc_lock);
FOREACH_PROC_IN_SYSTEM(p) {
PROC_LOCK(p);
FOREACH_THREAD_IN_PROC(p, td) {
if ((ts = td->td_lkpi_task) != NULL) {
td->td_lkpi_task = NULL;
put_task_struct(ts);
}
}
PROC_UNLOCK(p);
}
sx_sunlock(&allproc_lock);
EVENTHANDLER_DEREGISTER(thread_dtor, linuxkpi_thread_dtor_tag);
}
SYSUNINIT(linux_current, SI_SUB_EVENTHANDLER, SI_ORDER_SECOND, linux_current_uninit, NULL);