patch-2.4.3 linux/drivers/md/md.c

• Lines: 101
• Date: Mon Mar 12 18:13:28 2001
• Orig file: v2.4.2/linux/drivers/md/md.c
• Orig date: Wed Feb 21 18:20:24 2001

diff -u --recursive --new-file v2.4.2/linux/drivers/md/md.c linux/drivers/md/md.c
@@ -682,6 +682,8 @@
 	rdev->bdev = NULL;
 }
 
+void md_autodetect_dev (kdev_t dev);
+
 static void export_rdev (mdk_rdev_t * rdev)
 {
 	printk("export_rdev(%s)\n",partition_name(rdev->dev));
@@ -696,6 +698,9 @@
 		md_list_del(&rdev->pending);
 		MD_INIT_LIST_HEAD(&rdev->pending);
 	}
+#ifndef MODULE
+	md_autodetect_dev(rdev->dev);
+#endif
 	rdev->dev = 0;
 	rdev->faulty = 0;
 	kfree(rdev);
@@ -3525,6 +3530,7 @@
 int md__init md_init (void)
 {
 	static char * name = "mdrecoveryd";
+	int minor;
 	
 	printk (KERN_INFO "md driver %d.%d.%d MAX_MD_DEVS=%d, MD_SB_DISKS=%d\n",
 			MD_MAJOR_VERSION, MD_MINOR_VERSION,
@@ -3536,9 +3542,14 @@
 		return (-1);
 	}
 	devfs_handle = devfs_mk_dir (NULL, "md", NULL);
-	devfs_register_series (devfs_handle, "%u",MAX_MD_DEVS,DEVFS_FL_DEFAULT,
-				MAJOR_NR, 0, S_IFBLK | S_IRUSR | S_IWUSR,
-				&md_fops, NULL);
+	/* we don't use devfs_register_series because we want to fill md_hd_struct */
+	for (minor=0; minor < MAX_MD_DEVS; ++minor) {
+		char devname[128];
+		sprintf (devname, "%u", minor);
+		md_hd_struct[minor].de = devfs_register (devfs_handle,
+			devname, DEVFS_FL_DEFAULT, MAJOR_NR, minor,
+			S_IFBLK | S_IRUSR | S_IWUSR, &md_fops, NULL);
+	}
 
 	/* forward all md request to md_make_request */
 	blk_queue_make_request(BLK_DEFAULT_QUEUE(MAJOR_NR), md_make_request);
@@ -3581,10 +3592,10 @@
  * Searches all registered partitions for autorun RAID arrays
  * at boot time.
  */
-static int detected_devices[128] md__initdata;
+static int detected_devices[128];
 static int dev_cnt;
 
-void md_autodetect_dev(kdev_t dev)
+void md_autodetect_dev (kdev_t dev)
 {
 	if (dev_cnt >= 0 && dev_cnt < 127)
 		detected_devices[dev_cnt++] = dev;
@@ -3598,7 +3609,7 @@
 
 	printk(KERN_INFO "autodetecting RAID arrays\n");
 
-	for (i=0; i<dev_cnt; i++) {
+	for (i = 0; i < dev_cnt; i++) {
 		kdev_t dev = detected_devices[i];
 
 		if (md_import_device(dev,1)) {
@@ -3620,6 +3631,7 @@
 		}
 		md_list_add(&rdev->pending, &pending_raid_disks);
 	}
+	dev_cnt = 0;
 
 	autorun_devices(-1);
 }
@@ -3656,7 +3668,7 @@
 	kdev_t device;
 	char *devnames, *pername = "";
 
-	if(get_option(&str, &minor) != 2) {	/* MD Number */
+	if (get_option(&str, &minor) != 2) {	/* MD Number */
 		printk("md: Too few arguments supplied to md=.\n");
 		return 0;
 	}
@@ -3667,7 +3679,7 @@
 		printk ("md: Warning - md=%d,... has been specified twice;\n"
 			"    will discard the first definition.\n", minor);
 	}
-	switch(get_option(&str, &level)) {	/* RAID Personality */
+	switch (get_option(&str, &level)) {	/* RAID Personality */
 	case 2: /* could be 0 or -1.. */
 		if (level == 0 || level == -1) {
 			if (get_option(&str, &factor) != 2 ||	/* Chunk Size */
@@ -3820,7 +3832,6 @@
 		printk(KERN_INFO "skipping autodetection of RAID arrays\n");
 	else
 		autostart_arrays();
-	dev_cnt = -1; /* make sure further calls to md_autodetect_dev are ignored */
 	md_setup_drive();
 	return 0;
 }