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fastboot: make the raid autodetect code wait for all devices to init 

The raid autodetect code really needs to have all devices probed before
it can detect raid arrays; not doing so would give rather messy situations
where arrays would get detected as degraded while they shouldn't be etc.

This is in preparation of removing the "wait for everything to init"
code that makes everyone pay, not just raid users.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
This commit is contained in:
Arjan van de Ven 2008-07-20 13:07:09 -07:00
parent 8bd9890e94
commit 589f800bb1
1 changed files with 7 additions and 0 deletions
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7
init/do_mounts_md.c
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@ -267,9 +267,16 @@ __setup("md=", md_setup);
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 {
/*
* 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
*/
while (driver_probe_done() != 0)
msleep(100);
int fd = sys_open("/dev/md0", 0, 0);
if (fd >= 0) {
sys_ioctl(fd, RAID_AUTORUN, raid_autopart);