b47cee6c96
The channel passed to blob IO operations is useful for tracking operations within the blobstore and the bs_dev that the blobstore resides on. Esnap clone blobs perform reads from other bs_devs and require per-thread, per-bs_dev channels. This commit augments struct spdk_bs_channel with a tree containing channels for the external snapshot bs_devs. The tree is indexed by blob ID. These "esnap channels" are lazily created on the first read from an external snapshot via each bs_channel. They are removed as bs_channels are destroyed and blobs are closed. Change-Id: I97aebe5a2f3584bfbf3a10ede8f3128448d30d6e Signed-off-by: Mike Gerdts <mgerdts@nvidia.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14974 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> |
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