优龙2410linux2.6.8内核源代码

				/*				 * arch/s390/kernel/profile.c				 *				 * Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation				 * Author(s): Thomas Spatzier (tspat@de.ibm.com)				 *				 */				#include 								static struct proc_dir_entry * root_irq_dir;								static int prof_cpu_mask_read_proc (char *page, char **start, off_t off,									int count, int *eof, void *data)				{					int len = cpumask_scnprintf(page, count, *(cpumask_t *)data);					if (count - len < 2)						return -EINVAL;					len += sprintf(page + len, "\n");					return len;				}								static int prof_cpu_mask_write_proc (struct file *file,									const char __user *buffer,									unsigned long count, void *data)				{					cpumask_t *mask = (cpumask_t *)data;					unsigned long full_count = count, err;					cpumask_t new_value;									err = cpumask_parse(buffer, count, new_value);					if (err)						return err;									*mask = new_value;					return full_count;				}								cpumask_t prof_cpu_mask = CPU_MASK_ALL;								void init_irq_proc(void)				{					struct proc_dir_entry *entry;									/* create /proc/irq */					root_irq_dir = proc_mkdir("irq", 0);									/* create /proc/irq/prof_cpu_mask */					entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir);									if (!entry)						return;									entry->nlink = 1;					entry->data = (void *)&prof_cpu_mask;					entry->read_proc = prof_cpu_mask_read_proc;					entry->write_proc = prof_cpu_mask_write_proc;				}