Konstantin Belousov fa48f413ef In bnoreuselist(), check both ends of the specified logical block
numbers range.

This effectively skips indirect and extdata blocks on the buffer
queue.  Since their logical block numbers are negative, bnoreuselist()
could loop infinitely.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-02-17 19:39:57 +00:00
..
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