diff options
Diffstat (limited to 'lib/metadata/metadata.h')
| -rw-r--r-- | lib/metadata/metadata.h | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/lib/metadata/metadata.h b/lib/metadata/metadata.h index 2c101048..f585ebda 100644 --- a/lib/metadata/metadata.h +++ b/lib/metadata/metadata.h @@ -14,6 +14,7 @@ #include "dev-cache.h" #include "list.h" #include "uuid.h" + #include <sys/types.h> #include <asm/page.h> @@ -21,7 +22,6 @@ #define MAX_STRIPES 128 #define SECTOR_SHIFT 9L #define SECTOR_SIZE ( 1L << SECTOR_SHIFT ) -#define STRIPE_SIZE_DEFAULT 16 /* 16KB */ #define STRIPE_SIZE_MIN ( PAGE_SIZE >> SECTOR_SHIFT) /* PAGESIZE in sectors */ #define STRIPE_SIZE_MAX ( 512L * 1024L >> SECTOR_SHIFT) /* 512 KB in sectors */ #define PV_MIN_SIZE ( 512L * 1024L >> SECTOR_SHIFT) /* 512 KB in sectors */ @@ -84,14 +84,14 @@ struct format_type { struct physical_volume { struct id id; struct device *dev; - struct format_type *fmt; - char *vg_name; + const struct format_type *fmt; + const char *vg_name; uint32_t status; uint64_t size; /* physical extents */ - uint64_t pe_size; + uint32_t pe_size; uint64_t pe_start; uint32_t pe_count; uint32_t pe_alloc_count; @@ -134,7 +134,7 @@ struct metadata_area { }; struct format_instance { - struct format_type *fmt; + const struct format_type *fmt; struct list metadata_areas; /* e.g. metadata locations */ }; @@ -252,19 +252,19 @@ struct format_handler { /* * Scan any metadata areas that aren't referenced in PV labels */ - int (*scan) (struct format_type * fmt); + int (*scan) (const struct format_type * fmt); /* * Return PV with given path. */ - int (*pv_read) (struct format_type * fmt, const char *pv_name, + int (*pv_read) (const struct format_type * fmt, const char *pv_name, struct physical_volume * pv, struct list * mdas); /* * Tweak an already filled out a pv ready for importing into a * vg. eg. pe_count is format specific. */ - int (*pv_setup) (struct format_type * fmt, + int (*pv_setup) (const struct format_type * fmt, uint64_t pe_start, uint32_t extent_count, uint32_t extent_size, int pvmetadatacopies, @@ -275,8 +275,9 @@ struct format_handler { * Write a PV structure to disk. Fails if the PV is in a VG ie * pv->vg_name must be null. */ - int (*pv_write) (struct format_type * fmt, struct physical_volume * pv, - struct list * mdas, int64_t label_sector); + int (*pv_write) (const struct format_type * fmt, + struct physical_volume * pv, struct list * mdas, + int64_t label_sector); /* * Tweak an already filled out a lv eg, check there @@ -294,8 +295,8 @@ struct format_handler { /* * Create format instance with a particular metadata area */ - struct format_instance *(*create_instance) (struct format_type * fmt, - const char *vgname, + struct format_instance *(*create_instance) (const struct format_type * + fmt, const char *vgname, void *context); /* @@ -306,7 +307,7 @@ struct format_handler { /* * Destructor for format type */ - void (*destroy) (struct format_type * fmt); + void (*destroy) (const struct format_type * fmt); }; /* @@ -328,7 +329,7 @@ int pv_write(struct cmd_context *cmd, struct physical_volume *pv, /* pe_start and pe_end relate to any existing data so that new metadata * areas can avoid overlap */ -struct physical_volume *pv_create(struct format_type *fmt, +struct physical_volume *pv_create(const struct format_type *fmt, struct device *dev, struct id *id, uint64_t size, @@ -339,10 +340,11 @@ struct physical_volume *pv_create(struct format_type *fmt, uint64_t pvmetadatasize, struct list *mdas); struct volume_group *vg_create(struct cmd_context *cmd, const char *name, - uint32_t extent_size, int max_pv, int max_lv, - int pv_count, char **pv_names); + uint32_t extent_size, uint32_t max_pv, + uint32_t max_lv, int pv_count, char **pv_names); int vg_remove(struct volume_group *vg); - +int vg_rename(struct cmd_context *cmd, struct volume_group *vg, + const char *new_name); int vg_extend(struct format_instance *fi, struct volume_group *vg, int pv_count, char **pv_names); @@ -385,7 +387,7 @@ struct physical_volume *find_pv_in_vg_by_uuid(struct volume_group *vg, /* Find an LV within a given VG */ struct lv_list *find_lv_in_vg(struct volume_group *vg, const char *lv_name); struct lv_list *find_lv_in_vg_by_lvid(struct volume_group *vg, - union lvid *lvid); + const union lvid *lvid); /* Return the VG that contains a given LV (based on path given in lv_name) */ /* or environment var */ @@ -419,12 +421,12 @@ int lv_merge_segments(struct logical_volume *lv); /* * Useful functions for managing snapshots. */ -int lv_is_origin(struct logical_volume *lv); -int lv_is_cow(struct logical_volume *lv); +int lv_is_origin(const struct logical_volume *lv); +int lv_is_cow(const struct logical_volume *lv); -struct snapshot *find_cow(struct logical_volume *lv); -struct snapshot *find_origin(struct logical_volume *lv); -struct list *find_snapshots(struct logical_volume *lv); +struct snapshot *find_cow(const struct logical_volume *lv); +struct snapshot *find_origin(const struct logical_volume *lv); +struct list *find_snapshots(const struct logical_volume *lv); int vg_add_snapshot(struct logical_volume *origin, struct logical_volume *cow, |