pmem2_config_set_required_store_granularity

#include <libpmem2.h>

enum pmem2_granularity {
    PMEM2_GRANULARITY_BYTE,
    PMEM2_GRANULARITY_CACHE_LINE,
    PMEM2_GRANULARITY_PAGE,
};
int pmem2_config_set_required_store_granularity(struct pmem2_config *cfg,
        enum pmem2_granularity g);

The pmem2_config_set_required_store_granularity() sets a maximum permitted granularity g requested by user in the pmem2_config structure.

Granularity must be one of the following values:

• PMEM2_GRANULARITY_BYTE
• PMEM2_GRANULARITY_CACHE_LINE
• PMEM2_GRANULARITY_PAGE

A description of the granularity concept can be found in libpmem2(7) manpage.

The pmem2_config_set_required_store_granularity() function returns 0 on success or a negative error code on failure.

The pmem2_config_set_required_store_granularity() can fail with the following errors:

• PMEM2_E_GRANULARITY_NOT_SUPPORTED - granularity g is not a valid value.

pmem2_config_new(3), libpmem2(7) and <https://pmem.io>

libpmem2(7), pmem2_map_new(3).