[PATCH] initrd fails again in 2.5.18

[James Bottomley <James.Bottomley@steeleye.com>]

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The initial ramdisk fails to work with a slew of errors like:

generic_make_request: Trying to access nonexistent block-device 01:00 (2)

The problem was caused by change

kdev_t -> bdev cleanups [2/2]

which took out the ability of bdev_get_queue() to create a queue if one didn't 
already exist for the device.  The functionality was moved to 
block_dev.c:do_open() where it exists within the if(!bdev->bd_openers) which 
the ramdisk never gets to.

The (tested) fix, I think, is to set bd_queue as part of ramdisk 
initialisation, which is what the attached patch does.

James Bottomley


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===== drivers/block/rd.c 1.38 vs edited =====
--- 1.38/drivers/block/rd.c	Thu May 23 08:18:38 2002
+++ edited/drivers/block/rd.c	Mon May 27 17:11:40 2002
@@ -379,6 +379,7 @@
 		rd_bdev[unit]->bd_openers++;
 		rd_bdev[unit]->bd_block_size = rd_blocksize;
 		rd_bdev[unit]->bd_inode->i_mapping->a_ops = &ramdisk_aops;
+		rd_bdev[unit]->bd_queue = BLK_DEFAULT_QUEUE(MAJOR_NR);
 	}
 
 	return 0;