-
+#include <linux/delay.h>
#include <linux/raid/md.h>
#include "do_mounts.h"
* The code for that is here.
*/
-static int __initdata raid_noautodetect, raid_autopart;
+#ifdef CONFIG_MD_AUTODETECT
+static int __initdata raid_noautodetect;
+#else
+static int __initdata raid_noautodetect=1;
+#endif
+static int __initdata raid_autopart;
static struct {
int minor;
static int md_setup_ents __initdata;
-extern int mdp_major;
/*
* Parse the command-line parameters given our kernel, but do not
* actually try to invoke the MD device now; that is handled by
if (!strncmp(str, "noautodetect", wlen))
raid_noautodetect = 1;
+ if (!strncmp(str, "autodetect", wlen))
+ raid_noautodetect = 0;
if (strncmp(str, "partitionable", wlen)==0)
raid_autopart = 1;
if (strncmp(str, "part", wlen)==0)
__setup("raid=", raid_setup);
__setup("md=", md_setup);
+static void autodetect_raid(void)
+{
+ int fd;
+
+ /*
+ * Since we don't want to detect and use half a raid array, we need to
+ * wait for the known devices to complete their probing
+ */
+ printk(KERN_INFO "md: Waiting for all devices to be available before autodetect\n");
+ printk(KERN_INFO "md: If you don't use raid, use raid=noautodetect\n");
+ while (driver_probe_done() < 0)
+ msleep(100);
+ fd = sys_open("/dev/md0", 0, 0);
+ if (fd >= 0) {
+ sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
+ sys_close(fd);
+ }
+}
+
void __init md_run_setup(void)
{
create_dev("/dev/md0", MKDEV(MD_MAJOR, 0));
+
if (raid_noautodetect)
- printk(KERN_INFO "md: Skipping autodetection of RAID arrays. (raid=noautodetect)\n");
- else {
- int fd = sys_open("/dev/md0", 0, 0);
- if (fd >= 0) {
- sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
- sys_close(fd);
- }
- }
+ printk(KERN_INFO "md: Skipping autodetection of RAID arrays. (raid=autodetect will force)\n");
+ else
+ autodetect_raid();
md_setup_drive();
}