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lib/blob: pass Extent Page offset on cluster allocation

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Extent Pages claim and insertion can be asynchronous
when cluster allocation happens due to writing to a new cluster.

In such case lowest free cluster and lowest free md page
is claimed, and message is passed to md_thread.
Where inserting both into the arrays and md_sycn happens.

This patch adds parameters to pass the Extent Page offset
in such case.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I46d8ace9cd5abc0bfe48174c2f2ec218145b9c75
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479849
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Tomasz Zawadzki 2020-01-03 05:44:53 -05:00
parent f60b4a7e28
commit eebbd951cf
2 changed files with 16 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
lib/blob/blobstore.c
View File

@ -54,7 +54,7 @@ static int spdk_bs_register_md_thread(struct spdk_blob_store *bs);
static int spdk_bs_unregister_md_thread(struct spdk_blob_store *bs);
static void _spdk_blob_close_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrno);
static void _spdk_blob_insert_cluster_on_md_thread(struct spdk_blob *blob, uint32_t cluster_num,
uint64_t cluster, spdk_blob_op_complete cb_fn, void *cb_arg);
uint64_t cluster, uint32_t extent, spdk_blob_op_complete cb_fn, void *cb_arg);
static int _spdk_blob_set_xattr(struct spdk_blob *blob, const char *name, const void *value,
uint16_t value_len, bool internal);
@ -114,7 +114,7 @@ _spdk_blob_insert_cluster(struct spdk_blob *blob, uint32_t cluster_num, uint64_t
static int
_spdk_bs_allocate_cluster(struct spdk_blob *blob, uint32_t cluster_num,
uint64_t *lowest_free_cluster, bool update_map)
uint64_t *lowest_free_cluster, uint32_t *lowest_free_md_page, bool update_map)
{
pthread_mutex_lock(&blob->bs->used_clusters_mutex);
*lowest_free_cluster = spdk_bit_array_find_first_clear(blob->bs->used_clusters,
@ -1555,6 +1555,7 @@ _spdk_blob_resize(struct spdk_blob *blob, uint64_t sz)
uint64_t i;
uint64_t *tmp;
uint64_t lfc; /* lowest free cluster */
uint32_t lfmd; /* lowest free md page */
uint64_t num_clusters;
struct spdk_blob_store *bs;
@ -1614,9 +1615,11 @@ _spdk_blob_resize(struct spdk_blob *blob, uint64_t sz)
if (spdk_blob_is_thin_provisioned(blob) == false) {
lfc = 0;
lfmd = 0;
for (i = num_clusters; i < sz; i++) {
_spdk_bs_allocate_cluster(blob, i, &lfc, true);
_spdk_bs_allocate_cluster(blob, i, &lfc, &lfmd, true);
lfc++;
lfmd++;
}
}
@ -1781,6 +1784,7 @@ struct spdk_blob_copy_cluster_ctx {
uint8_t *buf;
uint64_t page;
uint64_t new_cluster;
uint32_t new_extent_page;
spdk_bs_sequence_t *seq;
};
@ -1842,7 +1846,7 @@ _spdk_blob_write_copy_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrno)
cluster_number = _spdk_bs_page_to_cluster(ctx->blob->bs, ctx->page);
_spdk_blob_insert_cluster_on_md_thread(ctx->blob, cluster_number, ctx->new_cluster,
_spdk_blob_insert_cluster_cpl, ctx);
ctx->new_extent_page, _spdk_blob_insert_cluster_cpl, ctx);
}
static void
@ -1915,7 +1919,8 @@ _spdk_bs_allocate_and_copy_cluster(struct spdk_blob *blob,
}
}
rc = _spdk_bs_allocate_cluster(blob, cluster_number, &ctx->new_cluster, false);
rc = _spdk_bs_allocate_cluster(blob, cluster_number, &ctx->new_cluster, &ctx->new_extent_page,
false);
if (rc != 0) {
spdk_free(ctx->buf);
free(ctx);
@ -1947,7 +1952,7 @@ _spdk_bs_allocate_and_copy_cluster(struct spdk_blob *blob,
_spdk_blob_write_copy, ctx);
} else {
_spdk_blob_insert_cluster_on_md_thread(ctx->blob, cluster_number, ctx->new_cluster,
_spdk_blob_insert_cluster_cpl, ctx);
ctx->new_extent_page, _spdk_blob_insert_cluster_cpl, ctx);
}
}
@ -6150,7 +6155,7 @@ _spdk_blob_insert_cluster_msg(void *arg)
static void
_spdk_blob_insert_cluster_on_md_thread(struct spdk_blob *blob, uint32_t cluster_num,
uint64_t cluster, spdk_blob_op_complete cb_fn, void *cb_arg)
uint64_t cluster, uint32_t extent_page, spdk_blob_op_complete cb_fn, void *cb_arg)
{
struct spdk_blob_insert_cluster_ctx *ctx;

6
test/unit/lib/blob/blob.c/blob_ut.c
View File

@ -4521,6 +4521,7 @@ blob_insert_cluster_msg(void)
uint64_t free_clusters;
uint64_t new_cluster = 0;
uint32_t cluster_num = 3;
uint32_t extent_page = 0;
dev = init_dev();
@ -4556,10 +4557,11 @@ blob_insert_cluster_msg(void)
/* Specify cluster_num to allocate and new_cluster will be returned to insert on md_thread.
* This is to simulate behaviour when cluster is allocated after blob creation.
* Such as _spdk_bs_allocate_and_copy_cluster(). */
_spdk_bs_allocate_cluster(blob, cluster_num, &new_cluster, false);
_spdk_bs_allocate_cluster(blob, cluster_num, &new_cluster, &extent_page, false);
CU_ASSERT(blob->active.clusters[cluster_num] == 0);
_spdk_blob_insert_cluster_on_md_thread(blob, cluster_num, new_cluster, blob_op_complete, NULL);
_spdk_blob_insert_cluster_on_md_thread(blob, cluster_num, new_cluster, extent_page,
blob_op_complete, NULL);
poll_threads();
CU_ASSERT(blob->active.clusters[cluster_num] != 0);