[PATCH] AFS: Remove all AFS /proc entries in module cleanup

[David Howells]

This is regarding a bug in the 'kafs' module. Whenever the kafs module
is unloaded, it produces the following stack trace. 
********************************************************************
kAFS: Red Hat AFS client v0.1 unregistering.
BUG: at fs/proc/generic.c:732 remove_proc_entry()
 [<c0195380>] remove_proc_entry+0x11b/0x175
 [<c013b52e>] sys_delete_module+0x1a5/0x1cf
 [<c0158bc2>] remove_vma+0x36/0x3b
 [<c01594ca>] do_munmap+0x193/0x1ac
 [<c0103da0>] syscall_call+0x7/0xb
 [<c02a0033>] nf_ip_checksum+0xd4/0xe1
 =======================
***************************************************************
The problem is reproducible on the latest rc kernel - 2.6.20-rc5. The
cause of the problem being kafs driver trying to free the /proc/fs/afs
directory which is not empty. 

- Poornima

Signed-off-by: B N Poornima <poornima at in.ibm.com>
Signed-Off-By: David Howells <dhowells at redhat.com>
---

 fs/afs/proc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 8da8330..5b6ba12 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -179,6 +179,8 @@ void afs_proc_cleanup(void)
 	remove_proc_entry("rootcell", proc_afs);
 	remove_proc_entry("cells", proc_afs);
 
+	remove_proc_entry("rootcell", proc_afs);
+
 	remove_proc_entry("fs/afs", NULL);
 
 } /* end afs_proc_cleanup() */