diff options
Diffstat (limited to 'drivers/dax/dax-private.h')
| -rw-r--r-- | drivers/dax/dax-private.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h index 446617b73aea..0867115aeef2 100644 --- a/drivers/dax/dax-private.h +++ b/drivers/dax/dax-private.h @@ -40,6 +40,12 @@ struct dax_region { struct device *youngest; }; +/** + * struct dax_mapping - device to display mapping range attributes + * @dev: device representing this range + * @range_id: index within dev_dax ranges array + * @id: ida of this mapping + */ struct dax_mapping { struct device dev; int range_id; @@ -47,6 +53,18 @@ struct dax_mapping { }; /** + * struct dev_dax_range - tuple represenging a range of memory used by dev_dax + * @pgoff: page offset + * @range: resource-span + * @mapping: reference to the dax_mapping for this range + */ +struct dev_dax_range { + unsigned long pgoff; + struct range range; + struct dax_mapping *mapping; +}; + +/** * struct dev_dax - instance data for a subdivision of a dax region, and * data while the device is activated in the driver. * @region - parent region @@ -58,7 +76,7 @@ struct dax_mapping { * @dev - device core * @pgmap - pgmap for memmap setup / lifetime (driver owned) * @nr_range: size of @ranges - * @ranges: resource-span + pgoff tuples for the instance + * @ranges: range tuples of memory used */ struct dev_dax { struct dax_region *region; @@ -72,11 +90,7 @@ struct dev_dax { struct dev_pagemap *pgmap; bool memmap_on_memory; int nr_range; - struct dev_dax_range { - unsigned long pgoff; - struct range range; - struct dax_mapping *mapping; - } *ranges; + struct dev_dax_range *ranges; }; /* |