Ocfs2 devel - May 2008 - [PATCH]ocfs2-1.2: Add dput for uuid entry.

In ocfs2-1.2, when we mount a device, a debugfs dir will be created 
using its uuid. When 2 devices have the same uuid, after the 1st device 
is mounted, the 2nd one can't be mounted. This is OK. But the problem is 
that the dentry's reference is added. So when the 1st volume is 
umounted, none of these 2 volumes can be mounted then. So this fix 
solves this problem by dputting the entry(Copied from the latest debugfs 
code in Linux kernel).
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Some more information.
The git commit log in the kernel is: 
65c333367b1aea57d58168ad3dc1df27b0227401
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0611.3/0125.html.

In this patch the debugfs_remove is modified(dput is removed), but in 
the latest fs/debugfs/inode.c, dput is still there. So now I really 
don't know whether this function should be modified or not.

Any advice is welcomed.
Thanks.

Regards,
Tao

Tao Ma wrote:
> In ocfs2-1.2, when we mount a device, a debugfs dir will be created 
> using its uuid. When 2 devices have the same uuid, after the 1st device 
> is mounted, the 2nd one can't be mounted. This is OK. But the problem
is
> that the dentry's reference is added. So when the 1st volume is 
> umounted, none of these 2 volumes can be mounted then. So this fix 
> solves this problem by dputting the entry(Copied from the latest debugfs 
> code in Linux kernel).
> 
> 
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> 
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