cifs: clean up arguments to cifs_open_inode_helper
cifs: clean up arguments to cifs_open_inode_helper

...which takes a ton of unneeded arguments and does a lot more pointer
dereferencing than is really needed.

Signed-off-by: Jeff Layton <4376fbf8623cd7b7c0232225289bb91cedc0a27f@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <f409583cd9cda60cf3706d325fdb8cfd1551a59d@suse.de>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs