Messages in this thread Patch in this message | | | Date | Fri, 11 Dec 2009 10:25:32 -0600 | From | Dimitri Sivanich <> | Subject | [PATCH] Expose the irq_desc node in proc/irq |
| |
Expose the irq_desc node as /proc/irq/*/node.
Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
---
kernel/irq/proc.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
Index: linux/kernel/irq/proc.c =================================================================== --- linux.orig/kernel/irq/proc.c 2009-12-11 10:09:31.000000000 -0600 +++ linux/kernel/irq/proc.c 2009-12-11 10:15:28.000000000 -0600 @@ -146,6 +146,26 @@ static const struct file_operations defa .release = single_release, .write = default_affinity_write, }; + +static int irq_node_proc_show(struct seq_file *m, void *v) +{ + struct irq_desc *desc = irq_to_desc((long) m->private); + + seq_printf(m, "%d\n", desc->node); + return 0; +} + +static int irq_node_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, irq_node_proc_show, PDE(inode)->data); +} + +static const struct file_operations irq_node_proc_fops = { + .open = irq_node_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; #endif static int irq_spurious_proc_show(struct seq_file *m, void *v) @@ -230,6 +250,9 @@ void register_irq_proc(unsigned int irq, /* create /proc/irq/<irq>/smp_affinity */ proc_create_data("smp_affinity", 0600, desc->dir, &irq_affinity_proc_fops, (void *)(long)irq); + + proc_create_data("node", 0444, desc->dir, + &irq_node_proc_fops, (void *)(long)irq); #endif proc_create_data("spurious", 0444, desc->dir,
| |