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blob: Add helper function for set up bitmask.

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Change-Id: I1afcfc3523b20bdfd60d7e6787350dfa4880bc50
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/380853
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Cunyin Chang 2017-09-30 07:16:09 +08:00 committed by Daniel Verkamp
parent 721695e121
commit 1ae9dd67b6
1 changed files with 17 additions and 22 deletions
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39
lib/blob/blobstore.c
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@ -1455,6 +1455,21 @@ struct spdk_bs_load_ctx {
struct spdk_bs_md_mask *mask;
};
static void
_spdk_bs_set_mask(struct spdk_bit_array *array, struct spdk_bs_md_mask *mask)
{
uint32_t i = 0;
while (true) {
i = spdk_bit_array_find_first_set(array, i);
if (i >= mask->length) {
break;
}
mask->mask[i / 8] |= 1U << (i % 8);
i++;
}
}
static void
_spdk_bs_load_used_clusters_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrno)
{
@ -1928,7 +1943,6 @@ static void
_spdk_bs_unload_write_used_pages_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrno)
{
struct spdk_bs_unload_ctx *ctx = cb_arg;
uint32_t i;
uint64_t lba, lba_count, mask_size;
spdk_dma_free(ctx->mask);
@ -1947,16 +1961,7 @@ _spdk_bs_unload_write_used_pages_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int
ctx->mask->length = ctx->bs->total_clusters;
assert(ctx->mask->length == spdk_bit_array_capacity(ctx->bs->used_clusters));
i = 0;
while (true) {
i = spdk_bit_array_find_first_set(ctx->bs->used_clusters, i);
if (i > ctx->mask->length) {
break;
}
ctx->mask->mask[i / 8] |= 1U << (i % 8);
i++;
}
_spdk_bs_set_mask(ctx->bs->used_clusters, ctx->mask);
lba = _spdk_bs_page_to_lba(ctx->bs, ctx->super->used_cluster_mask_start);
lba_count = _spdk_bs_page_to_lba(ctx->bs, ctx->super->used_cluster_mask_len);
spdk_bs_sequence_write(seq, ctx->mask, lba, lba_count,
@ -1967,7 +1972,6 @@ static void
_spdk_bs_unload_read_super_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrno)
{
struct spdk_bs_unload_ctx *ctx = cb_arg;
uint32_t i;
uint64_t lba, lba_count, mask_size;
/* Write out the used page mask */
@ -1984,16 +1988,7 @@ _spdk_bs_unload_read_super_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int bserrn
ctx->mask->length = ctx->super->md_len;
assert(ctx->mask->length == spdk_bit_array_capacity(ctx->bs->used_md_pages));
i = 0;
while (true) {
i = spdk_bit_array_find_first_set(ctx->bs->used_md_pages, i);
if (i > ctx->mask->length) {
break;
}
ctx->mask->mask[i / 8] |= 1U << (i % 8);
i++;
}
_spdk_bs_set_mask(ctx->bs->used_md_pages, ctx->mask);
lba = _spdk_bs_page_to_lba(ctx->bs, ctx->super->used_page_mask_start);
lba_count = _spdk_bs_page_to_lba(ctx->bs, ctx->super->used_page_mask_len);
spdk_bs_sequence_write(seq, ctx->mask, lba, lba_count,