Rick McNeal wrote:
Looking at the code it doesn't seem like the backing store being zeroed.
In case of regular file a single sector (512 byte) of uninitialized
data from
stack (bad practice ?) is written to the very end of the file. And in
case
I hang my head in shame. I've fixed the code.
NB. ZFS compression will very nicely compress zeros. I suppose one could
consider this to be sparse. One might wish to turn compression off for
iSCSI zvols if they also don't wish a sparse-like behaviour.
-- richard
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