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ftl: add ftl_get_size(), allow trimming final sector, recover tail and size

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S.J.R. van Schaik 2017-05-15 17:48:28 +02:00
parent da30898794
commit 4b651b19f1
2 changed files with 51 additions and 6 deletions
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3
include/ftl.h
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@ -8,6 +8,7 @@ struct ftl_page_group {
struct ftl_page_desc {
uint32_t va;
uint32_t nused_pages;
uint32_t subtrees[32];
} __attribute__((packed));
@ -15,6 +16,7 @@ struct ftl_journal {
struct flash_dev *dev;
uint32_t head, tail;
uint32_t root;
uint32_t nused_pages;
uint32_t nblocks;
uint8_t log2_groups_per_block;
uint8_t log2_pages_per_group;
@ -32,4 +34,5 @@ int ftl_find(struct ftl_journal *j, uint32_t *loc, uint32_t va);
int ftl_write(struct ftl_journal *j, uint32_t addr, const uint8_t *data);
int ftl_read(struct ftl_journal *j, uint8_t *data, uint32_t va);
int ftl_trim(struct ftl_journal *j, uint32_t va);
uint32_t ftl_get_size(const struct ftl_journal *j);
uint32_t ftl_get_capacity(const struct ftl_journal *j);