Re: Why can't I flush /dev/ram0?

[Jan Rekorajski <baggins@sith.mimuw.edu.pl>]

On Mon, 18 Jun 2001, Kelledin Tane wrote:

> At this point, I'm trying to get an initrd working properly.  So far, it
> works, the system boots, etc. etc., but whenever I try to do a "blockdev
> --flushbufs /dev/ram0", I get "device or resource busy"
> 
> When I mount the filesystem to check it out, nothing appears to have
> anything open on the filesystem.  So why am I not able to flush it
> clean?

Because of a bug present in Linus tree. Try this patch:

--- linux.orig/drivers/block/rd.c	Mon Nov 20 02:07:47 2000
+++ linux/drivers/block/rd.c	Mon Nov 20 04:03:42 2000
@@ -690,6 +690,7 @@
 done:
 	if (infile.f_op->release)
 		infile.f_op->release(inode, &infile);
+	blkdev_put(out_inode->i_bdev, BDEV_FILE);
 	set_fs(fs);
 	return;
 free_inodes: /* free inodes on error */ 

BTW, it's fixed in -ac patches.

Jan
-- 
Jan Rękorajski            |  ALL SUSPECTS ARE GUILTY. PERIOD!
baggins<at>mimuw.edu.pl   |  OTHERWISE THEY WOULDN'T BE SUSPECTS, WOULD THEY?
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