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(parent: 8848132) | patch
qcow2: refactor data compression
authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Wed, 20 Jun 2018 14:48:36 +0000 (17:48 +0300)
committerKevin Wolf <kwolf@redhat.com>
Thu, 5 Jul 2018 08:29:00 +0000 (10:29 +0200)
commit2714f13d69adf73638842729ccfb3bdd6d5ee98f
treebffa272114f2b264f94cb8f05c3509f0eaf2c1b1tree | snapshot
parent88481329c0a43373f994f0c8ed19e888a8c86830commit | diff
qcow2: refactor data compression

Make a separate function for compression to be parallelized later.
 - use .avail_out field instead of .next_out to calculate size of
   compressed data. It looks more natural and it allows to keep dest to
   be void pointer
 - set avail_out to be at least one byte less than input, to be sure
   avoid inefficient compression earlier

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/qcow2.c diff | blob | history
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