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From: Oleg Drokin <green@namesys.com>
To: hch@lst.de, linux-kernel@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net
Subject: Re: "[PATCH] devfs: switch over ubd to ->devfs_name" breaks ubd/sysfs
Date: Mon, 21 Apr 2003 15:55:30 +0400	[thread overview]
Message-ID: <20030421155530.A7544@namesys.com> (raw)

Hello!

   The "[PATCH] devfs: switch over ubd to ->devfs_name" patch that was included into 2.5.68,
   have broken UML's ubd/sysfs interaction.
   Sysfs is very upset when something tries to register several devices with 
   same name, so I was forced to use following patch.
   If this is wrong, then please explain to me why, and suggest the correct way of handling
   this situation.

   Thank you.
   
Bye,
    Oleg

===== arch/um/drivers/ubd_kern.c 1.32 vs edited =====
--- 1.32/arch/um/drivers/ubd_kern.c	Sun Apr 20 01:17:05 2003
+++ edited/arch/um/drivers/ubd_kern.c	Mon Apr 21 15:52:54 2003
@@ -494,7 +494,7 @@
 	disk->first_minor = unit << UBD_SHIFT;
 	disk->fops = &ubd_blops;
 	set_capacity(disk, size / 512);
-	sprintf(disk->disk_name, "ubd");
+	sprintf(disk->disk_name, "ubd%d", unit);
 	sprintf(disk->devfs_name, "ubd/disc%d", unit);
 
 	disk->private_data = &ubd_dev[unit];
@@ -527,7 +527,7 @@
 	if(err) 
 		return(err);
  
-	if(fake_major)
+	if(fake_major != MAJOR_NR)
 		ubd_new_disk(fake_major, dev->size, n, 
 			     &fake_gendisk[n]);
 

             reply	other threads:[~2003-04-21 11:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-21 11:55 Oleg Drokin [this message]
2003-04-21 12:18 ` "[PATCH] devfs: switch over ubd to ->devfs_name" breaks ubd/sysfs Christoph Hellwig
2003-04-21 12:30   ` Oleg Drokin
2003-04-21 12:34     ` Christoph Hellwig
2003-04-21 12:39       ` Oleg Drokin

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