[linux-cifs-client] cifs mount hangs KDE apps

[Steven French]

This issue is probably the regression caused by the removal of an ifdef 
when the VFS removed the generic_file_fcntl call. 

The experimental cifs directory notify code was enabled around 2.6.8 or 
2.6.9 (should have been disabled) which is fixed in current mainline 
(2.6.10-rc) bk tree and in mm (and also the cifs dnotify code has been 
fixed to not hang in these cases).   The q;uick way to fix this is to 
remove the refrence to the cifs notify routine in the two file operations 
lists in fs/cifs/cifsfs.c (or wait for 2.6.10).

We really need a good dnotify test case (smaller than running kde and with 
easier to undertand behavior and error code display) so we can catch it if 
someone breaks notify and so I can finish testing of notify (Samba's code 
looks not quite right either as I test the experimental code against 
Windows and Samba servers).


Steve French
Senior Software Engineer
Linux Technology Center - IBM Austin
phone: 512-838-2294
email: sfrench at-sign us dot ibm dot com
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