mirror of https://github.com/proxmox/mirror_qemu
rbd: call flush, if available
librbd recently added async writeback and flush support. If the new rbd_flush() call is available, call it. Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>master
parent
9e1fbcde57
commit
7a3f5fe9af
12
block/rbd.c
12
block/rbd.c
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@ -680,6 +680,17 @@ static BlockDriverAIOCB *qemu_rbd_aio_writev(BlockDriverState *bs,
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return rbd_aio_rw_vector(bs, sector_num, qiov, nb_sectors, cb, opaque, 1);
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return rbd_aio_rw_vector(bs, sector_num, qiov, nb_sectors, cb, opaque, 1);
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}
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}
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static int qemu_rbd_flush(BlockDriverState *bs)
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{
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#if LIBRBD_VERSION_CODE >= LIBRBD_VERSION(0, 1, 1)
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/* rbd_flush added in 0.1.1 */
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BDRVRBDState *s = bs->opaque;
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return rbd_flush(s->image);
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#else
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return 0;
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#endif
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}
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static int qemu_rbd_getinfo(BlockDriverState *bs, BlockDriverInfo *bdi)
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static int qemu_rbd_getinfo(BlockDriverState *bs, BlockDriverInfo *bdi)
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{
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{
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BDRVRBDState *s = bs->opaque;
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BDRVRBDState *s = bs->opaque;
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@ -815,6 +826,7 @@ static BlockDriver bdrv_rbd = {
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.bdrv_file_open = qemu_rbd_open,
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.bdrv_file_open = qemu_rbd_open,
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.bdrv_close = qemu_rbd_close,
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.bdrv_close = qemu_rbd_close,
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.bdrv_create = qemu_rbd_create,
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.bdrv_create = qemu_rbd_create,
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.bdrv_flush = qemu_rbd_flush,
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.bdrv_get_info = qemu_rbd_getinfo,
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.bdrv_get_info = qemu_rbd_getinfo,
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.create_options = qemu_rbd_create_options,
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.create_options = qemu_rbd_create_options,
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.bdrv_getlength = qemu_rbd_getlength,
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.bdrv_getlength = qemu_rbd_getlength,
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