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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2019-07-25 13:05:50 +0300 |
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| committer | Eric Blake <eblake@redhat.com> | 2019-08-15 13:22:13 -0500 |
| commit | 7fa5c5657f11096101f5be18fe1f7395776be5a6 (patch) | |
| tree | 3526092b0bcea6fe6897eb6699d61acb65b51fd5 /hw/hyperv/hyperv_testdev.c | |
| parent | 99136607b1edb0129d1ebb6ecac21738ad3d9c36 (diff) | |
| download | focaccia-qemu-7fa5c5657f11096101f5be18fe1f7395776be5a6.tar.gz focaccia-qemu-7fa5c5657f11096101f5be18fe1f7395776be5a6.zip | |
nbd: improve CMD_CACHE: use BDRV_REQ_PREFETCH
This helps to avoid extra io, allocations and memory copying. We assume here that CMD_CACHE is always used with copy-on-read, as otherwise it's a noop. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20190725100550.33801-4-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'hw/hyperv/hyperv_testdev.c')
0 files changed, 0 insertions, 0 deletions