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ftl: add ftl_is_mapped() to check if a page is mapped

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S.J.R. van Schaik 2017-05-19 18:28:44 +02:00
parent 937521c909
commit c684a57e24
2 changed files with 11 additions and 0 deletions
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1
include/ftl.h
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@ -30,6 +30,7 @@ struct ftl_map {
int ftl_init_map(struct ftl_map *map, struct flash_dev *dev); int ftl_init_map(struct ftl_map *map, struct flash_dev *dev);
int ftl_resume_map(struct ftl_map *map); int ftl_resume_map(struct ftl_map *map);
int ftl_is_mapped(struct ftl_map *map, uint32_t va);
size_t ftl_write(struct ftl_map *map, uint32_t addr, const void *data, size_t ftl_write(struct ftl_map *map, uint32_t addr, const void *data,
size_t len); size_t len);
size_t ftl_read(struct ftl_map *map, void *data, size_t len, uint32_t va); size_t ftl_read(struct ftl_map *map, void *data, size_t len, uint32_t va);

10
source/ftl/ftl.c
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@ -12,6 +12,16 @@
#include "gc.h" #include "gc.h"
#include "map.h" #include "map.h"
int ftl_is_mapped(struct ftl_map *map, uint32_t va)
{
va = align(va, map->log2_page_size);
if (trace_path(map, NULL, NULL, va) < 0)
return 0;
return 1;
}
size_t ftl_read(struct ftl_map *map, void *data, size_t len, uint32_t va) size_t ftl_read(struct ftl_map *map, void *data, size_t len, uint32_t va)
{ {
int ret; int ret;