diff options
author | Mark Brown <broonie@linaro.org> | 2013-07-19 10:42:11 +0100 |
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committer | Mark Brown <broonie@linaro.org> | 2013-07-19 10:42:11 +0100 |
commit | 0b37fbf7508ff30e1d3668fea74e82f842448354 (patch) | |
tree | 6d01fee5e95e1d4a8042ef473d61dd816b43d13e /kernel/sched | |
parent | 0a37d59e3c8c2299f8931df0cb1c0f525047fab5 (diff) | |
parent | a88f9e27498afaea615ad3e93af4f26df1f84987 (diff) |
Merge branch 'experimental/android-3.10' of https://android.googlesource.com/kernel/common into linux-linaro-lsk-android
Conflicts:
arch/arm/include/asm/smp.h
arch/arm/kernel/smp.c
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 50d9e9849ce..cb21581be5e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7114,13 +7114,24 @@ 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; @@ -7726,6 +7737,23 @@ 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) { @@ -8085,6 +8113,7 @@ 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, |