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blob: add _spdk_blob_persist_start

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No functional change - this just separates out the
code that creates the persist ctx from the code that
actually performs the persist operation.

Part of series to enable queuing persist operations -
this will be useful for starting a previously queued
persist operation.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie1966ff2a477f3075c36f90560010d036658f803

Reviewed-on: https://review.gerrithub.io/401255
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Jim Harris 2018-02-23 09:04:28 -07:00
parent d5adb95226
commit 758a42f692
1 changed files with 33 additions and 24 deletions
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57
lib/blob/blobstore.c
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@ -883,6 +883,7 @@ struct spdk_blob_persist_ctx {
uint64_t idx;
spdk_bs_sequence_t *seq;
spdk_bs_sequence_cpl cb_fn;
void *cb_arg;
};
@ -1194,34 +1195,15 @@ _spdk_resize_blob(struct spdk_blob *blob, uint64_t sz)
return 0;
}
/* Write a blob to disk */
static void
_spdk_blob_persist(spdk_bs_sequence_t *seq, struct spdk_blob *blob,
spdk_bs_sequence_cpl cb_fn, void *cb_arg)
_spdk_blob_persist_start(struct spdk_blob_persist_ctx *ctx)
{
struct spdk_blob_persist_ctx *ctx;
int rc;
spdk_bs_sequence_t *seq = ctx->seq;
struct spdk_blob *blob = ctx->blob;
struct spdk_blob_store *bs = blob->bs;
uint64_t i;
uint32_t page_num;
struct spdk_blob_store *bs;
_spdk_blob_verify_md_op(blob);
if (blob->state == SPDK_BLOB_STATE_CLEAN) {
cb_fn(seq, cb_arg, 0);
return;
}
bs = blob->bs;
ctx = calloc(1, sizeof(*ctx));
if (!ctx) {
cb_fn(seq, cb_arg, -ENOMEM);
return;
}
ctx->blob = blob;
ctx->cb_fn = cb_fn;
ctx->cb_arg = cb_arg;
int rc;
if (blob->active.num_pages == 0) {
/* This is the signal that the blob should be deleted.
@ -1284,6 +1266,33 @@ _spdk_blob_persist(spdk_bs_sequence_t *seq, struct spdk_blob *blob,
_spdk_blob_persist_write_page_chain(seq, ctx, 0);
}
/* Write a blob to disk */
static void
_spdk_blob_persist(spdk_bs_sequence_t *seq, struct spdk_blob *blob,
spdk_bs_sequence_cpl cb_fn, void *cb_arg)
{
struct spdk_blob_persist_ctx *ctx;
_spdk_blob_verify_md_op(blob);
if (blob->state == SPDK_BLOB_STATE_CLEAN) {
cb_fn(seq, cb_arg, 0);
return;
}
ctx = calloc(1, sizeof(*ctx));
if (!ctx) {
cb_fn(seq, cb_arg, -ENOMEM);
return;
}
ctx->blob = blob;
ctx->seq = seq;
ctx->cb_fn = cb_fn;
ctx->cb_arg = cb_arg;
_spdk_blob_persist_start(ctx);
}
struct spdk_blob_copy_cluster_ctx {
struct spdk_blob *blob;
uint8_t *buf;