diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/delayacct.c | 16 | ||||
| -rw-r--r-- | kernel/exit.c | 3 | ||||
| -rw-r--r-- | kernel/fork.c | 6 | ||||
| -rw-r--r-- | kernel/irq/handle.c | 5 |
4 files changed, 10 insertions, 20 deletions
diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 57ca373..36752f1 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -41,24 +41,11 @@ void delayacct_init(void) void __delayacct_tsk_init(struct task_struct *tsk) { - spin_lock_init(&tsk->delays_lock); - /* No need to acquire tsk->delays_lock for allocation here unless - __delayacct_tsk_init called after tsk is attached to tasklist - */ tsk->delays = kmem_cache_zalloc(delayacct_cache, SLAB_KERNEL); if (tsk->delays) spin_lock_init(&tsk->delays->lock); } -void __delayacct_tsk_exit(struct task_struct *tsk) -{ - struct task_delay_info *delays = tsk->delays; - spin_lock(&tsk->delays_lock); - tsk->delays = NULL; - spin_unlock(&tsk->delays_lock); - kmem_cache_free(delayacct_cache, delays); -} - /* * Start accounting for a delay statistic using * its starting timestamp (@start) @@ -118,8 +105,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) struct timespec ts; unsigned long t1,t2,t3; - spin_lock(&tsk->delays_lock); - /* Though tsk->delays accessed later, early exit avoids * unnecessary returning of other data */ @@ -161,7 +146,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) spin_unlock(&tsk->delays->lock); done: - spin_unlock(&tsk->delays_lock); return 0; } diff --git a/kernel/exit.c b/kernel/exit.c index dba194a..d891883 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -908,7 +908,6 @@ fastcall NORET_TYPE void do_exit(long code) audit_free(tsk); taskstats_exit_send(tsk, tidstats, group_dead, mycpu); taskstats_exit_free(tidstats); - delayacct_tsk_exit(tsk); exit_mm(tsk); @@ -1054,7 +1053,7 @@ static int eligible_child(pid_t pid, int options, struct task_struct *p) * Do not consider thread group leaders that are * in a non-empty thread group: */ - if (current->tgid != p->tgid && delay_group_leader(p)) + if (delay_group_leader(p)) return 2; if (security_task_wait(p)) diff --git a/kernel/fork.c b/kernel/fork.c index aa36c43..f9b014e 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -117,6 +117,7 @@ void __put_task_struct(struct task_struct *tsk) security_task_free(tsk); free_uid(tsk->user); put_group_info(tsk->group_info); + delayacct_tsk_free(tsk); if (!profile_handoff_task(tsk)) free_task(tsk); @@ -1011,7 +1012,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, retval = -EFAULT; if (clone_flags & CLONE_PARENT_SETTID) if (put_user(p->pid, parent_tidptr)) - goto bad_fork_cleanup; + goto bad_fork_cleanup_delays_binfmt; INIT_LIST_HEAD(&p->children); INIT_LIST_HEAD(&p->sibling); @@ -1277,7 +1278,8 @@ bad_fork_cleanup_policy: bad_fork_cleanup_cpuset: #endif cpuset_exit(p); -bad_fork_cleanup: +bad_fork_cleanup_delays_binfmt: + delayacct_tsk_free(p); if (p->binfmt) module_put(p->binfmt->module); bad_fork_cleanup_put_domain: diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index fc4e906..48a53f6 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -20,6 +20,11 @@ /** * handle_bad_irq - handle spurious and unhandled irqs + * @irq: the interrupt number + * @desc: description of the interrupt + * @regs: pointer to a register structure + * + * Handles spurious and unhandled IRQ's. It also prints a debugmessage. */ void fastcall handle_bad_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) |
