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block: Don't call ROUND_UP with negative values
authorKevin Wolf <kwolf@redhat.com>
Fri, 7 Feb 2014 15:00:09 +0000 (16:00 +0100)
committerKevin Wolf <kwolf@redhat.com>
Sun, 9 Feb 2014 08:12:39 +0000 (09:12 +0100)
commit5f5bcd80f8c365bca1480dc39141952fa7f88c71
treec14c2700bb93c87b2ec03e47d6d1acc17e57a3cetree
parentaf91f9a73c3a67eebbf4120cae62b82db8eaae19commit | diff
block: Don't call ROUND_UP with negative values

The behaviour of the ROUND_UP macro with negative numbers isn't obvious.
It happens to do the right thing in this please, but better avoid it.

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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