xfs: log VLOOKUP xattr nvreplace operations

If high level code wants to do a deferred xattr nvreplace operation with
the VLOOKUP flag set, we need to push this through the log.  To avoid
breaking bisection in parent pointer code, we'll temporarily create a
new NVREPLACEXXX flag that connects to the VLOOKUP flag.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
3 files changed