From owner-freebsd-hackers@FreeBSD.ORG  Wed Nov  8 01:38:42 2006
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Date: Wed, 8 Nov 2006 02:38:36 +0100 (CET)
From: Pedro F Giffuni <pfgshield-pitt@yahoo.com>
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Subject: SEEK_HOLE and SEEK_DATA for sparse files  any takers?
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Hi;

>From http://blogs.sun.com/bonwick/date/200512

"At this writing, SEEK_HOLE and SEEK_DATA are Solaris-specific. I encourage
(implore? beg?) other operating systems to adopt these lseek(2) extensions
verbatim (100% tax-free) so that sparse file navigation becomes a ubiquitous
feature that every backup and archiving program can rely on. It's long
overdue."

It should be mentioned that linux adopted them and they would help the ZFS
port.

cheers,

Pedro

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