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| author | Colin Cross <ccross@android.com> | 2010-10-06 16:31:32 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2010-10-06 16:32:09 -0700 |
| commit | 98959c85632cde43fc83ba1b709f767fc3b8a4ee (patch) | |
| tree | be7912bc7cd8c2aab86922da933439ff951ab602 /kernel/fork.c | |
| parent | 5c4a97667fdf6705d6c9f9e4b42dd7deb4da6978 (diff) | |
| parent | df5ac72e83df9fd8d735d40d5be464d4b66d6074 (diff) | |
Merge branch 'android-2.6.36' into android-tegra-2.6.36
Conflicts:
drivers/input/touchscreen/Kconfig
Change-Id: Ifc75266e258f9513d78c47c12e2f1de1d2344f02
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index c445f8cc408d..f3d93ab730c6 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -147,6 +147,9 @@ struct kmem_cache *vm_area_cachep; /* SLAB cache for mm_struct structures (tsk->mm) */ static struct kmem_cache *mm_cachep; +/* Notifier list called when a task struct is freed */ +static ATOMIC_NOTIFIER_HEAD(task_free_notifier); + static void account_kernel_stack(struct thread_info *ti, int account) { struct zone *zone = page_zone(virt_to_page(ti)); @@ -177,6 +180,18 @@ static inline void put_signal_struct(struct signal_struct *sig) free_signal_struct(sig); } +int task_free_register(struct notifier_block *n) +{ + return atomic_notifier_chain_register(&task_free_notifier, n); +} +EXPORT_SYMBOL(task_free_register); + +int task_free_unregister(struct notifier_block *n) +{ + return atomic_notifier_chain_unregister(&task_free_notifier, n); +} +EXPORT_SYMBOL(task_free_unregister); + void __put_task_struct(struct task_struct *tsk) { WARN_ON(!tsk->exit_state); @@ -187,6 +202,7 @@ void __put_task_struct(struct task_struct *tsk) delayacct_tsk_free(tsk); put_signal_struct(tsk->signal); + atomic_notifier_call_chain(&task_free_notifier, 0, tsk); if (!profile_handoff_task(tsk)) free_task(tsk); } |