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933a30b6b7
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) |
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