diff options
author | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 01:36:41 -0700 |
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committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 01:36:41 -0700 |
commit | c70ba0b1799cd1c3a2f027238851149ecdb79da6 (patch) | |
tree | 693cbeda7444a624731b8b2c0616365ed5ab7335 /kernel/sched | |
parent | fa791cecfb6dcf223d81c2e0aac2cd1f93d7c911 (diff) | |
parent | a88f9e27498afaea615ad3e93af4f26df1f84987 (diff) |
Merge commit 'a88f9e27498afaea615ad3e93af4f26df1f84987' into after-upstream-android
Conflicts:
arch/arm/common/Kconfig
arch/arm/mm/Makefile
arch/arm/mm/cache-l2x0.c
arch/arm/mm/mmu.c
drivers/input/Kconfig
drivers/input/Makefile
drivers/power/Kconfig
kernel/futex.c
Diffstat (limited to 'kernel/sched')
-rw-r--r-- | kernel/sched/core.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index e8b335016c52..014040fa3d21 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7093,13 +7093,24 @@ static inline int preempt_count_equals(int preempt_offset) return (nested == preempt_offset); } +static int __might_sleep_init_called; +int __init __might_sleep_init(void) +{ + __might_sleep_init_called = 1; + return 0; +} +early_initcall(__might_sleep_init); + void __might_sleep(const char *file, int line, int preempt_offset) { static unsigned long prev_jiffy; /* ratelimiting */ rcu_sleep_check(); /* WARN_ON_ONCE() by default, no rate limit reqd. */ if ((preempt_count_equals(preempt_offset) && !irqs_disabled()) || - system_state != SYSTEM_RUNNING || oops_in_progress) + oops_in_progress) + return; + if (system_state != SYSTEM_RUNNING && + (!__might_sleep_init_called || system_state != SYSTEM_BOOTING)) return; if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) return; @@ -7705,6 +7716,23 @@ static void cpu_cgroup_css_offline(struct cgroup *cgrp) sched_offline_group(tg); } +static int +cpu_cgroup_allow_attach(struct cgroup *cgrp, struct cgroup_taskset *tset) +{ + const struct cred *cred = current_cred(), *tcred; + struct task_struct *task; + + cgroup_taskset_for_each(task, cgrp, tset) { + tcred = __task_cred(task); + + if ((current != task) && !capable(CAP_SYS_NICE) && + cred->euid != tcred->uid && cred->euid != tcred->suid) + return -EACCES; + } + + return 0; +} + static int cpu_cgroup_can_attach(struct cgroup *cgrp, struct cgroup_taskset *tset) { @@ -8064,6 +8092,7 @@ struct cgroup_subsys cpu_cgroup_subsys = { .css_offline = cpu_cgroup_css_offline, .can_attach = cpu_cgroup_can_attach, .attach = cpu_cgroup_attach, + .allow_attach = cpu_cgroup_allow_attach, .exit = cpu_cgroup_exit, .subsys_id = cpu_cgroup_subsys_id, .base_cftypes = cpu_files, |