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authorSteven Whitehouse <swhiteho@redhat.com>2006-07-03 10:25:08 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-07-03 10:25:08 -0400
commit0a1340c185734a57fbf4775927966ad4a1347b02 (patch)
treed9ed8f0dd809a7c542a3356601125ea5b5aaa804 /kernel/exit.c
parentaf18ddb8864b096e3ed4732e2d4b21c956dcfe3a (diff)
parent29454dde27d8e340bb1987bad9aa504af7081eba (diff)
Merge rsync://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: include/linux/kernel.h
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index e06d0c10a24..7f7ef225855 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -4,7 +4,6 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
@@ -36,6 +35,7 @@
#include <linux/compat.h>
#include <linux/pipe_fs_i.h>
#include <linux/audit.h> /* for audit_free() */
+#include <linux/resource.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
@@ -45,8 +45,6 @@
extern void sem_exit (void);
extern struct task_struct *child_reaper;
-int getrusage(struct task_struct *, int, struct rusage __user *);
-
static void exit_mm(struct task_struct * tsk);
static void __unhash_process(struct task_struct *p)
@@ -138,12 +136,8 @@ void release_task(struct task_struct * p)
{
int zap_leader;
task_t *leader;
- struct dentry *proc_dentry;
-
repeat:
atomic_dec(&p->user->processes);
- spin_lock(&p->proc_lock);
- proc_dentry = proc_pid_unhash(p);
write_lock_irq(&tasklist_lock);
ptrace_unlink(p);
BUG_ON(!list_empty(&p->ptrace_list) || !list_empty(&p->ptrace_children));
@@ -172,8 +166,7 @@ repeat:
sched_exit(p);
write_unlock_irq(&tasklist_lock);
- spin_unlock(&p->proc_lock);
- proc_pid_flush(proc_dentry);
+ proc_flush_task(p);
release_thread(p);
call_rcu(&p->rcu, delayed_put_task_struct);
@@ -579,7 +572,7 @@ static void exit_mm(struct task_struct * tsk)
down_read(&mm->mmap_sem);
}
atomic_inc(&mm->mm_count);
- if (mm != tsk->active_mm) BUG();
+ BUG_ON(mm != tsk->active_mm);
/* more a memory barrier than a real lock */
task_lock(tsk);
tsk->mm = NULL;
@@ -895,11 +888,11 @@ fastcall NORET_TYPE void do_exit(long code)
if (group_dead) {
hrtimer_cancel(&tsk->signal->real_timer);
exit_itimers(tsk->signal);
- acct_process(code);
}
+ acct_collect(code, group_dead);
if (unlikely(tsk->robust_list))
exit_robust_list(tsk);
-#ifdef CONFIG_COMPAT
+#if defined(CONFIG_FUTEX) && defined(CONFIG_COMPAT)
if (unlikely(tsk->compat_robust_list))
compat_exit_robust_list(tsk);
#endif
@@ -907,6 +900,8 @@ fastcall NORET_TYPE void do_exit(long code)
audit_free(tsk);
exit_mm(tsk);
+ if (group_dead)
+ acct_process();
exit_sem(tsk);
__exit_files(tsk);
__exit_fs(tsk);
@@ -930,9 +925,18 @@ fastcall NORET_TYPE void do_exit(long code)
tsk->mempolicy = NULL;
#endif
/*
+ * This must happen late, after the PID is not
+ * hashed anymore:
+ */
+ if (unlikely(!list_empty(&tsk->pi_state_list)))
+ exit_pi_state_list(tsk);
+ if (unlikely(current->pi_state_cache))
+ kfree(current->pi_state_cache);
+ /*
* If DEBUG_MUTEXES is on, make sure we are holding no locks:
*/
mutex_debug_check_no_locks_held(tsk);
+ rt_mutex_debug_check_no_locks_held(tsk);
if (tsk->io_context)
exit_io_context();
@@ -1530,8 +1534,7 @@ check_continued:
if (options & __WNOTHREAD)
break;
tsk = next_thread(tsk);
- if (tsk->signal != current->signal)
- BUG();
+ BUG_ON(tsk->signal != current->signal);
} while (tsk != current);
read_unlock(&tasklist_lock);