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Date: Tue, 15 Oct 2013 16:06:31 +0200 (CEST)
From: Richard Kojedzinszky <krichy@cflinux.hu>
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Subject: zfs zvol fsync()
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Dear FS devs,

I run in to the problem that it seems that when a zvol is opened, and an 
fsync() is issued to is, nothing happens. Mainly I use a zvol to export it 
as an iscsi volume, and net/istgt issues fsync() to the device upon a scsi 
synchronize cache request.

Any comments on this?

Thanks in advance,

Kojedzinszky Richard