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authorYinghai Lu <yhlu.kernel@gmail.com>2008-08-19 20:50:20 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-16 16:52:51 +0200
commit52b17329d6d0a4824b89206803a430915031ff23 (patch)
tree714884d90d67a771eef01863a677d502b2d758fc /fs/proc/proc_misc.c
parenta2f9f43858db64cb8b45c4f6746d7a52b80d4dcb (diff)
x86_64: make /proc/interrupts work with dyn irq_desc
loop with irq_desc list Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/proc/proc_misc.c')
-rw-r--r--fs/proc/proc_misc.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index c3cbabe8b38..72dd739a7f8 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -645,15 +645,36 @@ static const struct file_operations proc_stat_operations = {
*/
static void *int_seq_start(struct seq_file *f, loff_t *pos)
{
+#ifdef CONFIG_HAVE_SPARSE_IRQ
+ struct irq_desc *desc;
+ int irq;
+ int count = *pos;
+
+ for_each_irq_desc(irq, desc) {
+ if (count-- == 0)
+ return desc;
+ }
+
+ return NULL;
+#else
return (*pos <= nr_irqs) ? pos : NULL;
+#endif
}
+
static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
{
+#ifdef CONFIG_HAVE_SPARSE_IRQ
+ struct irq_desc *desc;
+
+ desc = ((struct irq_desc *)v)->next;
(*pos)++;
- if (*pos > nr_irqs)
- return NULL;
- return pos;
+
+ return desc;
+#else
+ (*pos)++;
+ return (*pos <= nr_irqs) ? pos : NULL;
+#endif
}
static void int_seq_stop(struct seq_file *f, void *v)
@@ -661,7 +682,6 @@ static void int_seq_stop(struct seq_file *f, void *v)
/* Nothing to do */
}
-
static const struct seq_operations int_seq_ops = {
.start = int_seq_start,
.next = int_seq_next,