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qcow2: Use Qcow2Cache in writeback mode during loadvm/savevm
authorKevin Wolf <kwolf@redhat.com>
Tue, 19 Jul 2011 11:01:48 +0000 (13:01 +0200)
committerKevin Wolf <kwolf@redhat.com>
Tue, 19 Jul 2011 13:39:22 +0000 (15:39 +0200)
commit93913dfd8acbaddc8ef3716cd7b8a2830c99cb19
tree4bec586c8b3b30c6ab432fe1237070cfa9a93428tree
parent4a1d5e1fded54358ddc4d8cbd53388ca7c93499bcommit | diff
qcow2: Use Qcow2Cache in writeback mode during loadvm/savevm

In snapshotting there is no guest involved, so we can safely use a writeback
mode and do the flushes in the right place (i.e. at the very end). This
improves the time that creating/restoring an internal snapshot takes with an
image in writethrough mode.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/qcow2-cache.c diff | blob | blame | history
block/qcow2-refcount.c diff | blob | blame | history
block/qcow2.h diff | blob | blame | history
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