From: Tomohiro Kusumi <tkusumi@tuxera.com>
Date: Mon, 18 Sep 2017 17:53:49 +0000 (+0300)
Subject: lib/memalign: don't malloc size twice
X-Git-Tag: fio-3.1~6
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=ba8b89a1549c5ce7d7544813c9137798de454fac;hp=ba8b89a1549c5ce7d7544813c9137798de454fac;p=fio.git

lib/memalign: don't malloc size twice

The footer offset (diff between malloc'd address and aligned address)
is (alignment-1) at most, and footer appears `size' bytes after the
aligned address, thus required size is (alignment-1 + size + sizeof(*f)).

The existing code seems to allocate extra unused `size' bytes.

Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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