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Mark Johnston
86b064469d
In general it's possible for a vnode to not have an associated VM
object. This happens in particular with named pipes, which have
some distinct VOPs, defined in zfs_fifoops. Thus, this chunk of
zfs_freebsd_fsync() needs to check for the FIFO case, like other
vm_object_mightbedirty() callers do.
(Note that vn_flush_cached_data() calls are predicated on
zn_has_cached_data() returning true, and it checks for a NULL v_object
pointer already.)
Fixes: ef4058fcdc
Reported-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Sean Eric Fagan <sef@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Closes #18015