b7bfa50468
Copy-on-write happens when cluster is written for the first time for thin provisioned volume. Currently it is implemented as two separate requests to underlying bdev: read of the whole cluster to bounce buffer and then write of this buffer to the new location on the same underlying bdev. This patch improves copy-on-write flow by utilizing copy command of underlying bdev if it is supported. In this case we have just one request to bdev and don't need the bounce buffer. Signed-off-by: Evgeniy Kochetov <evgeniik@nvidia.com> Change-Id: I92552e0f18f7a41820d589e7bb1e86160c69183f Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14351 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> |
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| accel | ||
| bdev | ||
| blob | ||
| blobfs | ||
| env_dpdk | ||
| event | ||
| scheduler | ||
| sock | ||
| vfu_device | ||
| Makefile | ||