From 52b17329d6d0a4824b89206803a430915031ff23 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:20 -0700 Subject: x86_64: make /proc/interrupts work with dyn irq_desc loop with irq_desc list Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- fs/proc/proc_misc.c | 28 ++++++++++++++++++++++++---- 1 file changed, 24 insertions(+), 4 deletions(-) (limited to 'fs/proc') 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, -- cgit v1.2.3