genirq: switch /proc/irq/*/spurious to seq_file
[ tglx: compacted it a bit ]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
LKML-Reference: <20090828181743.GA14050@x200.localdomain>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index dfef5b9..4e47f11 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -148,18 +148,28 @@
};
#endif
-static int irq_spurious_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int irq_spurious_proc_show(struct seq_file *m, void *v)
{
- struct irq_desc *desc = irq_to_desc((long) data);
- return sprintf(page, "count %u\n"
- "unhandled %u\n"
- "last_unhandled %u ms\n",
- desc->irq_count,
- desc->irqs_unhandled,
- jiffies_to_msecs(desc->last_unhandled));
+ struct irq_desc *desc = irq_to_desc((long) m->private);
+
+ seq_printf(m, "count %u\n" "unhandled %u\n" "last_unhandled %u ms\n",
+ desc->irq_count, desc->irqs_unhandled,
+ jiffies_to_msecs(desc->last_unhandled));
+ return 0;
}
+static int irq_spurious_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, irq_spurious_proc_show, NULL);
+}
+
+static const struct file_operations irq_spurious_proc_fops = {
+ .open = irq_spurious_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
#define MAX_NAMELEN 128
static int name_unique(unsigned int irq, struct irqaction *new_action)
@@ -204,7 +214,6 @@
void register_irq_proc(unsigned int irq, struct irq_desc *desc)
{
char name [MAX_NAMELEN];
- struct proc_dir_entry *entry;
if (!root_irq_dir || (desc->chip == &no_irq_chip) || desc->dir)
return;
@@ -223,11 +232,8 @@
&irq_affinity_proc_fops, (void *)(long)irq);
#endif
- entry = create_proc_entry("spurious", 0444, desc->dir);
- if (entry) {
- entry->data = (void *)(long)irq;
- entry->read_proc = irq_spurious_read;
- }
+ proc_create_data("spurious", 0444, desc->dir,
+ &irq_spurious_proc_fops, (void *)(long)irq);
}
#undef MAX_NAMELEN