| commit | f71c08ea8e60f035485a512fd2af8908567592f0 | |
| author | Pavel Butsykin <pbutsykin@virtuozzo.com> | |
| Mon, 18 Sep 2017 12:42:28 +0000 (18 15:42 +0300) | ||
| committer | Max Reitz <mreitz@redhat.com> | |
| Tue, 26 Sep 2017 13:00:32 +0000 (26 15:00 +0200) | ||
| tree | a3ef8dc5e1f34e1a18d755672029bced057885ba | treesnapshot (tar.gz zip) |
| parent | 4ffca8904a350460cdaa6304ea8c9b9c693d2d91 | commitdiff |
qcow2: add qcow2_cache_discard
Whenever l2/refcount table clusters are discarded from the file we can
automatically drop unnecessary content of the cache tables. This reduces
the chance of eviction useful cache data and eliminates inconsistent data
in the cache with the data in the file.
Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170918124230.8152-3-pbutsykin@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Whenever l2/refcount table clusters are discarded from the file we can
automatically drop unnecessary content of the cache tables. This reduces
the chance of eviction useful cache data and eliminates inconsistent data
in the cache with the data in the file.
Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170918124230.8152-3-pbutsykin@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
| block/qcow2-cache.c | diffblobblamehistory | |
| block/qcow2-refcount.c | diffblobblamehistory | |
| block/qcow2.h | diffblobblamehistory |