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rbd: Add bdrv_truncate implementation
Reviewed-by: Christian Brunner <chb@muc.de> Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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parent
51a135287a
commit
30cdc48cc8
14
block/rbd.c
14
block/rbd.c
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@ -688,6 +688,19 @@ static int64_t qemu_rbd_getlength(BlockDriverState *bs)
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return info.size;
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}
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static int qemu_rbd_truncate(BlockDriverState *bs, int64_t offset)
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{
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BDRVRBDState *s = bs->opaque;
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int r;
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r = rbd_resize(s->image, offset);
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if (r < 0) {
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return r;
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}
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return 0;
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}
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static int qemu_rbd_snap_create(BlockDriverState *bs,
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QEMUSnapshotInfo *sn_info)
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{
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@ -784,6 +797,7 @@ static BlockDriver bdrv_rbd = {
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.bdrv_get_info = qemu_rbd_getinfo,
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.create_options = qemu_rbd_create_options,
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.bdrv_getlength = qemu_rbd_getlength,
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.bdrv_truncate = qemu_rbd_truncate,
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.protocol_name = "rbd",
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.bdrv_aio_readv = qemu_rbd_aio_readv,
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