summary |
shortlog |
log |
commit | commitdiff |
tree
raw |
patch |
inline | side by side (from parent 1:
c2f31c3)
No callers from atomic regions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
int nr_irqs = NR_IRQS;
EXPORT_SYMBOL_GPL(nr_irqs);
int nr_irqs = NR_IRQS;
EXPORT_SYMBOL_GPL(nr_irqs);
-static DEFINE_RAW_SPINLOCK(sparse_irq_lock);
+static DEFINE_MUTEX(sparse_irq_lock);
static DECLARE_BITMAP(allocated_irqs, NR_IRQS);
#ifdef CONFIG_SPARSE_IRQ
static DECLARE_BITMAP(allocated_irqs, NR_IRQS);
#ifdef CONFIG_SPARSE_IRQ
static void free_desc(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
static void free_desc(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
unregister_irq_proc(irq, desc);
unregister_irq_proc(irq, desc);
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
free_masks(desc);
kfree(desc->kstat_irqs);
free_masks(desc);
kfree(desc->kstat_irqs);
static int alloc_descs(unsigned int start, unsigned int cnt, int node)
{
struct irq_desc *desc;
static int alloc_descs(unsigned int start, unsigned int cnt, int node)
{
struct irq_desc *desc;
int i;
for (i = 0; i < cnt; i++) {
desc = alloc_desc(start + i, node);
if (!desc)
goto err;
int i;
for (i = 0; i < cnt; i++) {
desc = alloc_desc(start + i, node);
if (!desc)
goto err;
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
irq_insert_desc(start + i, desc);
irq_insert_desc(start + i, desc);
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
for (i--; i >= 0; i--)
free_desc(start + i);
for (i--; i >= 0; i--)
free_desc(start + i);
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
bitmap_clear(allocated_irqs, start, cnt);
bitmap_clear(allocated_irqs, start, cnt);
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
*/
void irq_free_descs(unsigned int from, unsigned int cnt)
{
*/
void irq_free_descs(unsigned int from, unsigned int cnt)
{
int i;
if (from >= nr_irqs || (from + cnt) > nr_irqs)
int i;
if (from >= nr_irqs || (from + cnt) > nr_irqs)
for (i = 0; i < cnt; i++)
free_desc(from + i);
for (i = 0; i < cnt; i++)
free_desc(from + i);
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
bitmap_clear(allocated_irqs, from, cnt);
bitmap_clear(allocated_irqs, from, cnt);
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
int __ref
irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node)
{
int __ref
irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node)
{
int start, ret;
if (!cnt)
return -EINVAL;
int start, ret;
if (!cnt)
return -EINVAL;
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
start = bitmap_find_next_zero_area(allocated_irqs, nr_irqs, from, cnt, 0);
ret = -EEXIST;
start = bitmap_find_next_zero_area(allocated_irqs, nr_irqs, from, cnt, 0);
ret = -EEXIST;
goto err;
bitmap_set(allocated_irqs, start, cnt);
goto err;
bitmap_set(allocated_irqs, start, cnt);
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
return alloc_descs(start, cnt, node);
err:
return alloc_descs(start, cnt, node);
err:
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);
*/
int irq_reserve_irqs(unsigned int from, unsigned int cnt)
{
*/
int irq_reserve_irqs(unsigned int from, unsigned int cnt)
{
unsigned int start;
int ret = 0;
if (!cnt || (from + cnt) > nr_irqs)
return -EINVAL;
unsigned int start;
int ret = 0;
if (!cnt || (from + cnt) > nr_irqs)
return -EINVAL;
- raw_spin_lock_irqsave(&sparse_irq_lock, flags);
+ mutex_lock(&sparse_irq_lock);
start = bitmap_find_next_zero_area(allocated_irqs, nr_irqs, from, cnt, 0);
if (start == from)
bitmap_set(allocated_irqs, start, cnt);
else
ret = -EEXIST;
start = bitmap_find_next_zero_area(allocated_irqs, nr_irqs, from, cnt, 0);
if (start == from)
bitmap_set(allocated_irqs, start, cnt);
else
ret = -EEXIST;
- raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
+ mutex_unlock(&sparse_irq_lock);