linux-imx

 * guard the relevant code with that flag.

 *

 * As these various flags are defined they should be added to the

 * following masks.

 */

​

#define DM_CACHE_FEATURE_COMPAT_SUPP      0UL

#define DM_CACHE_FEATURE_COMPAT_RO_SUPP   0UL

#define DM_CACHE_FEATURE_INCOMPAT_SUPP    0UL

​

/*

 * Reopens or creates a new, empty metadata volume.  Returns an ERR_PTR on

 * failure.  If reopening then features must match.

 */

struct dm_cache_metadata *dm_cache_metadata_open(struct block_device *bdev,

                         sector_t data_block_size,

                         bool may_format_device,

                         size_t policy_hint_size,

                         unsigned metadata_version);

​