[2.6 patch][2/3] kernel/ BUG -> BUG_ON conversions
From: Adrian Bunk (bunk_at_fs.tum.de)
Date: 08/28/04
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Date: Sat, 28 Aug 2004 17:17:16 +0200 To: Andrew Morton <akpm@osdl.org>
The patch below does BUG -> BUG_ON conversions in kernel/ .
diffstat output:
kernel/cpu.c | 8 +++-----
kernel/exit.c | 13 +++++--------
kernel/fork.c | 3 +--
kernel/module.c | 9 +++------
kernel/power/pm.c | 3 +--
kernel/printk.c | 6 ++----
kernel/ptrace.c | 6 ++----
kernel/signal.c | 27 +++++++++------------------
kernel/softirq.c | 6 ++----
kernel/timer.c | 3 +--
10 files changed, 29 insertions(+), 55 deletions(-)
Signed-off-by: Adrian Bunk <bunk@fs.tum.de>
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/cpu.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/cpu.c 2004-08-28 16:06:24.000000000 +0200
@@ -156,9 +156,8 @@
kthread_bind(p, smp_processor_id());
/* CPU is completely dead: tell everyone. Too late to complain. */
- if (notifier_call_chain(&cpu_chain, CPU_DEAD, (void *)(long)cpu)
- == NOTIFY_BAD)
- BUG();
+ BUG_ON(notifier_call_chain(&cpu_chain, CPU_DEAD, (void *)(long)cpu)
+ == NOTIFY_BAD);
check_for_tasks(cpu);
@@ -203,8 +202,7 @@
ret = __cpu_up(cpu);
if (ret != 0)
goto out_notify;
- if (!cpu_online(cpu))
- BUG();
+ BUG_ON(!cpu_online(cpu));
/* Now call notifier in preparation. */
notifier_call_chain(&cpu_chain, CPU_ONLINE, hcpu);
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/exit.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/exit.c 2004-08-28 16:08:24.000000000 +0200
@@ -503,7 +503,7 @@
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;
@@ -878,11 +877,9 @@
const struct list_head *tmp, *head = &link->pidptr->task_list;
#ifdef CONFIG_SMP
- if (!p->sighand)
- BUG();
- if (!spin_is_locked(&p->sighand->siglock) &&
- !rwlock_is_locked(&tasklist_lock))
- BUG();
+ BUG_ON(!p->sighand);
+ BUG_ON(!spin_is_locked(&p->sighand->siglock) &&
+ !rwlock_is_locked(&tasklist_lock));
#endif
tmp = link->pid_chain.next;
if (tmp == head)
@@ -1350,8 +1347,7 @@
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);
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/fork.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/fork.c 2004-08-28 16:08:45.000000000 +0200
@@ -809,8 +809,7 @@
struct files_struct *files = current->files;
int rc;
- if(!files)
- BUG();
+ BUG_ON(!files);
/* This can race but the race causes us to copy when we don't
need to and drop the copy */
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/module.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/module.c 2004-08-28 16:13:44.000000000 +0200
@@ -655,8 +655,7 @@
const unsigned long *crc;
spin_lock_irqsave(&modlist_lock, flags);
- if (!__find_symbol(symbol, &owner, &crc, 1))
- BUG();
+ BUG_ON(!__find_symbol(symbol, &owner, &crc, 1));
module_put(owner);
spin_unlock_irqrestore(&modlist_lock, flags);
}
@@ -667,8 +666,7 @@
unsigned long flags;
spin_lock_irqsave(&modlist_lock, flags);
- if (!kernel_text_address((unsigned long)addr))
- BUG();
+ BUG_ON(!kernel_text_address((unsigned long)addr));
module_put(module_text_address((unsigned long)addr));
spin_unlock_irqrestore(&modlist_lock, flags);
@@ -905,8 +903,7 @@
const unsigned long *crc;
struct module *owner;
- if (!__find_symbol("struct_module", &owner, &crc, 1))
- BUG();
+ BUG_ON(!__find_symbol("struct_module", &owner, &crc, 1));
return check_version(sechdrs, versindex, "struct_module", mod,
crc);
}
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/power/pm.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/power/pm.c 2004-08-28 16:14:19.000000000 +0200
@@ -156,8 +156,7 @@
int status = 0;
unsigned long prev_state, next_state;
- if (in_interrupt())
- BUG();
+ BUG_ON(in_interrupt());
switch (rqst) {
case PM_SUSPEND:
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/printk.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/printk.c 2004-08-28 16:14:47.000000000 +0200
@@ -418,8 +418,7 @@
unsigned long cur_index, start_print;
static int msg_level = -1;
- if (((long)(start - end)) > 0)
- BUG();
+ BUG_ON(((long)(start - end)) > 0);
cur_index = start;
start_print = start;
@@ -596,8 +595,7 @@
*/
void acquire_console_sem(void)
{
- if (in_interrupt())
- BUG();
+ BUG_ON(in_interrupt());
down(&console_sem);
console_locked = 1;
console_may_schedule = 1;
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/ptrace.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/ptrace.c 2004-08-28 16:15:19.000000000 +0200
@@ -28,8 +28,7 @@
*/
void __ptrace_link(task_t *child, task_t *new_parent)
{
- if (!list_empty(&child->ptrace_list))
- BUG();
+ BUG_ON(!list_empty(&child->ptrace_list));
if (child->parent == new_parent)
return;
list_add(&child->ptrace_list, &child->parent->ptrace_children);
@@ -46,8 +45,7 @@
*/
void __ptrace_unlink(task_t *child)
{
- if (!child->ptrace)
- BUG();
+ BUG_ON(!child->ptrace);
child->ptrace = 0;
if (list_empty(&child->ptrace_list))
return;
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/signal.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/signal.c 2004-08-28 16:17:07.000000000 +0200
@@ -346,10 +346,8 @@
struct signal_struct * sig = tsk->signal;
struct sighand_struct * sighand = tsk->sighand;
- if (!sig)
- BUG();
- if (!atomic_read(&sig->count))
- BUG();
+ BUG_ON(!sig);
+ BUG_ON(!atomic_read(&sig->count));
spin_lock(&sighand->siglock);
if (atomic_dec_and_test(&sig->count)) {
if (tsk == sig->curr_target)
@@ -816,11 +814,9 @@
{
int ret = 0;
- if (!irqs_disabled())
- BUG();
+ BUG_ON(!irqs_disabled());
#ifdef CONFIG_SMP
- if (!spin_is_locked(&t->sighand->siglock))
- BUG();
+ BUG_ON(!spin_is_locked(&t->sighand->siglock));
#endif
if (((unsigned long)info > 2) && (info->si_code == SI_TIMER))
@@ -1008,8 +1004,7 @@
int ret = 0;
#ifdef CONFIG_SMP
- if (!spin_is_locked(&p->sighand->siglock))
- BUG();
+ BUG_ON(!spin_is_locked(&p->sighand->siglock));
#endif
handle_stop_signal(sig, p);
@@ -1378,8 +1373,7 @@
* If an SI_TIMER entry is already queue just increment
* the overrun count.
*/
- if (q->info.si_code != SI_TIMER)
- BUG();
+ BUG_ON(q->info.si_code != SI_TIMER);
q->info.si_overrun++;
goto out;
}
@@ -1425,8 +1419,7 @@
* the overrun count. Other uses should not try to
* send the signal multiple times.
*/
- if (q->info.si_code != SI_TIMER)
- BUG();
+ BUG_ON(q->info.si_code != SI_TIMER);
q->info.si_overrun++;
goto out;
}
@@ -1474,8 +1467,7 @@
do {
wake_up_interruptible_sync(&tsk->wait_chldexit);
tsk = next_thread(tsk);
- if (tsk->signal != parent->signal)
- BUG();
+ BUG_ON(tsk->signal != parent->signal);
} while (tsk != parent);
}
@@ -1490,8 +1482,7 @@
int why, status;
struct sighand_struct *psig;
- if (sig == -1)
- BUG();
+ BUG_ON(sig == -1);
BUG_ON(!tsk->ptrace &&
(tsk->group_leader != tsk || !thread_group_empty(tsk)));
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/softirq.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/softirq.c 2004-08-28 16:18:12.000000000 +0200
@@ -240,8 +240,7 @@
if (tasklet_trylock(t)) {
if (!atomic_read(&t->count)) {
- if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state))
- BUG();
+ BUG_ON(!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state));
t->func(t->data);
tasklet_unlock(t);
continue;
@@ -273,8 +272,7 @@
if (tasklet_trylock(t)) {
if (!atomic_read(&t->count)) {
- if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state))
- BUG();
+ BUG_ON(!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state));
t->func(t->data);
tasklet_unlock(t);
continue;
--- linux-2.6.9-rc1-mm1-full-3.4/kernel/timer.c.old 2004-08-28 16:05:17.000000000 +0200
+++ linux-2.6.9-rc1-mm1-full-3.4/kernel/timer.c 2004-08-28 16:18:42.000000000 +0200
@@ -1374,8 +1374,7 @@
spin_lock(&new_base->lock);
}
- if (old_base->running_timer)
- BUG();
+ BUG_ON(old_base->running_timer);
for (i = 0; i < TVR_SIZE; i++)
if (!migrate_timer_list(new_base, old_base->tv1.vec + i))
goto unlock_again;
-
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- Previous message: Adrian Bunk: "[2.6 patch][1/3] ipc/ BUG -> BUG_ON conversions"
- In reply to: Adrian Bunk: "[2.6 patch][0/3] BUG -> BUG_ON conversions"
- Next in thread: Kyle Moffett: "Re: [2.6 patch][2/3] kernel/ BUG -> BUG_ON conversions"
- Reply: Kyle Moffett: "Re: [2.6 patch][2/3] kernel/ BUG -> BUG_ON conversions"
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