PROBLEM:  (QAR 74094, KAOQ31763)   (Patch ID: OSF435-345)
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This patch corrects a problem that caused a kernel memory fault failure
when attempting to obtain quota information on a clone file-on-file
mount point.

A clone file-on-file mount occurs when a pipe is opened and then
the fattach syscall is used to obscure a regular file or directory.

An example stack trace is as follows:

1 panic(s = 0xfffffc00005a2598 = "kernel memory fault")
2 trap()
3 _XentMM()
4 ffm_quotactl()
5 quotactl()
6 syscall()
7 _Xsyscall()