Change the semantics of i_modrev/va_filerev to what is required for

 	the nfsv4 Change attribute. There are 2 changes:
 	1 - The value now changes on metadata changes as well as data
 	    modifications (incremented for IN_CHANGE instead of IN_UPDATE).
 	2 - It is now saved in spare space in the on-disk i-node so that it
 	    survives a crash.
 	Since va_filerev is not passed out into user space, the only current
 	use of va_filerev is in the nfs server, which uses it as the directory
 	cookie verifier. Since this verifier is only passed back to the server
 	by a client verbatim and then the server doesn't check it, changing the
 	semantics should not break anything currently in FreeBSD.

Reviewed by:	bde
Approved by:	kib (mentor)

0 files changed, 0 insertions, 0 deletions