ae0b53b1b6
As an lvstore is opening it calls spdk_bs_load(), which briefly opens each blob and has no use for external snapshots. Since there is no point in opening them at this time, don't open them. Once the blobstore has been loaded, update lvs->load_esnaps so that external snapshots are opened as the lvols open their blobs. Change-Id: Ib16c8474300ff4b106aad0baa5b8b38332c23b01 Signed-off-by: Mike Gerdts <mgerdts@nvidia.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16424 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Jim Harris <james.r.harris@intel.com>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2017 Intel Corporation.
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* All rights reserved.
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* Copyright (c) 2022-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#ifndef SPDK_INTERNAL_LVOLSTORE_H
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#define SPDK_INTERNAL_LVOLSTORE_H
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#include "spdk/blob.h"
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#include "spdk/lvol.h"
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#include "spdk/queue.h"
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#include "spdk/uuid.h"
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/* Default size of blobstore cluster */
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#define SPDK_LVS_OPTS_CLUSTER_SZ (4 * 1024 * 1024)
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/* UUID + '_' + blobid (20 characters for uint64_t).
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* Null terminator is already included in SPDK_UUID_STRING_LEN. */
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#define SPDK_LVOL_UNIQUE_ID_MAX (SPDK_UUID_STRING_LEN + 1 + 20)
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struct spdk_lvs_req {
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spdk_lvs_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvol_store;
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int lvserrno;
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};
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struct spdk_lvs_grow_req {
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struct spdk_lvs_req base;
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spdk_lvs_op_complete cb_fn;
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void *cb_arg;
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struct lvol_store_bdev *lvs_bdev;
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int lvol_cnt;
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};
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struct spdk_lvol_req {
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spdk_lvol_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol *lvol;
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size_t sz;
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struct spdk_io_channel *channel;
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char name[SPDK_LVOL_NAME_MAX];
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};
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struct spdk_lvs_with_handle_req {
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spdk_lvs_op_with_handle_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvol_store;
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struct spdk_bs_dev *bs_dev;
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struct spdk_bdev *base_bdev;
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int lvserrno;
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};
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struct spdk_lvs_destroy_req {
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spdk_lvs_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvs;
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};
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struct spdk_lvol_with_handle_req {
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spdk_lvol_op_with_handle_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol *lvol;
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};
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struct spdk_lvol_store {
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struct spdk_bs_dev *bs_dev;
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struct spdk_blob_store *blobstore;
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struct spdk_blob *super_blob;
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spdk_blob_id super_blob_id;
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struct spdk_uuid uuid;
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int lvol_count;
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int lvols_opened;
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TAILQ_HEAD(, spdk_lvol) lvols;
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TAILQ_HEAD(, spdk_lvol) pending_lvols;
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TAILQ_HEAD(, spdk_lvol) retry_open_lvols;
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bool load_esnaps;
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bool on_list;
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TAILQ_ENTRY(spdk_lvol_store) link;
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char name[SPDK_LVS_NAME_MAX];
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char new_name[SPDK_LVS_NAME_MAX];
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spdk_bs_esnap_dev_create esnap_bs_dev_create;
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};
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struct spdk_lvol {
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struct spdk_lvol_store *lvol_store;
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struct spdk_blob *blob;
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spdk_blob_id blob_id;
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char unique_id[SPDK_LVOL_UNIQUE_ID_MAX];
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char name[SPDK_LVOL_NAME_MAX];
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struct spdk_uuid uuid;
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char uuid_str[SPDK_UUID_STRING_LEN];
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struct spdk_bdev *bdev;
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int ref_count;
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bool action_in_progress;
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enum blob_clear_method clear_method;
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TAILQ_ENTRY(spdk_lvol) link;
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};
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struct lvol_store_bdev *vbdev_lvol_store_first(void);
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struct lvol_store_bdev *vbdev_lvol_store_next(struct lvol_store_bdev *prev);
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void spdk_lvol_resize(struct spdk_lvol *lvol, uint64_t sz, spdk_lvol_op_complete cb_fn,
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void *cb_arg);
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void spdk_lvol_set_read_only(struct spdk_lvol *lvol, spdk_lvol_op_complete cb_fn,
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void *cb_arg);
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#endif /* SPDK_INTERNAL_LVOLSTORE_H */
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