diff options
| author | San Mehat <san@google.com> | 2010-05-06 15:40:07 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:38:17 -0800 |
| commit | fb7969fbf76e1d5655af275436304244ee074fa9 (patch) | |
| tree | d6b9c1e4c3942c1e753daa0d853b2ba81c964022 /drivers/staging | |
| parent | 4c97b1b8baa48de5675affccd1150f3b00310d18 (diff) | |
staging: android: lowmemorykiller: Fix task_struct leak
As it turns out, the CONFIG_PROFILING interfaces leak a
task struct if the notifier chain returns NOTIFY_OK.. doh.
This patch reworks lowmemkiller to use the new generic task
free notifier chain.
Signed-off-by: San Mehat <san@google.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/android/lowmemorykiller.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index 4523093767d4..1204ee0bdf72 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -34,7 +34,6 @@ #include <linux/mm.h> #include <linux/oom.h> #include <linux/sched.h> -#include <linux/profile.h> #include <linux/notifier.h> static uint32_t lowmem_debug_level = 2; @@ -74,7 +73,7 @@ task_notify_func(struct notifier_block *self, unsigned long val, void *data) struct task_struct *task = data; if (task == lowmem_deathpending) { lowmem_deathpending = NULL; - task_handoff_unregister(&task_nb); + task_free_unregister(&task_nb); } return NOTIFY_OK; } @@ -99,8 +98,6 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask) * that we have nothing further to offer on * this pass. * - * Note: Currently you need CONFIG_PROFILING - * for this to work correctly. */ if (lowmem_deathpending) return 0; @@ -176,15 +173,8 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask) lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n", selected->pid, selected->comm, selected_oom_adj, selected_tasksize); - /* - * If CONFIG_PROFILING is off, then task_handoff_register() - * is a nop. In that case we don't want to stall the killer - * by setting lowmem_deathpending. - */ -#ifdef CONFIG_PROFILING lowmem_deathpending = selected; - task_handoff_register(&task_nb); -#endif + task_free_register(&task_nb); force_sig(SIGKILL, selected); rem -= selected_tasksize; } |