X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fdevice-mapper.h;fp=include%2Flinux%2Fdevice-mapper.h;h=51e0e95a421a1a19ed3bfbc30e6e530b112dee55;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=e3d1c33d155883797f41d33b0096e06329d8de82;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index e3d1c33d1..51e0e95a4 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -8,12 +8,9 @@ #ifndef _LINUX_DEVICE_MAPPER_H #define _LINUX_DEVICE_MAPPER_H -#ifdef __KERNEL__ - struct dm_target; struct dm_table; struct dm_dev; -struct mapped_device; typedef enum { STATUSTYPE_INFO, STATUSTYPE_TABLE } status_type_t; @@ -81,7 +78,7 @@ void dm_put_device(struct dm_target *ti, struct dm_dev *d); struct target_type { const char *name; struct module *module; - unsigned version[3]; + unsigned version[3]; dm_ctr_fn ctr; dm_dtr_fn dtr; dm_map_fn map; @@ -100,7 +97,6 @@ struct io_restrictions { unsigned short hardsect_size; unsigned int max_segment_size; unsigned long seg_boundary_mask; - unsigned char no_cluster; /* inverted so that 0 is default */ }; struct dm_target { @@ -131,108 +127,4 @@ struct dm_target { int dm_register_target(struct target_type *t); int dm_unregister_target(struct target_type *t); - -/*----------------------------------------------------------------- - * Functions for creating and manipulating mapped devices. - * Drop the reference with dm_put when you finish with the object. - *---------------------------------------------------------------*/ - -/* - * DM_ANY_MINOR chooses the next available minor number. - */ -#define DM_ANY_MINOR (-1) -int dm_create(int minor, struct mapped_device **md); - -/* - * Reference counting for md. - */ -struct mapped_device *dm_get_md(dev_t dev); -void dm_get(struct mapped_device *md); -void dm_put(struct mapped_device *md); - -/* - * An arbitrary pointer may be stored alongside a mapped device. - */ -void dm_set_mdptr(struct mapped_device *md, void *ptr); -void *dm_get_mdptr(struct mapped_device *md); - -/* - * A device can still be used while suspended, but I/O is deferred. - */ -int dm_suspend(struct mapped_device *md, int with_lockfs); -int dm_resume(struct mapped_device *md); - -/* - * Event functions. - */ -uint32_t dm_get_event_nr(struct mapped_device *md); -int dm_wait_event(struct mapped_device *md, int event_nr); - -/* - * Info functions. - */ -const char *dm_device_name(struct mapped_device *md); -struct gendisk *dm_disk(struct mapped_device *md); -int dm_suspended(struct mapped_device *md); - -/* - * Geometry functions. - */ -int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo); -int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo); - - -/*----------------------------------------------------------------- - * Functions for manipulating device-mapper tables. - *---------------------------------------------------------------*/ - -/* - * First create an empty table. - */ -int dm_table_create(struct dm_table **result, int mode, - unsigned num_targets, struct mapped_device *md); - -/* - * Then call this once for each target. - */ -int dm_table_add_target(struct dm_table *t, const char *type, - sector_t start, sector_t len, char *params); - -/* - * Finally call this to make the table ready for use. - */ -int dm_table_complete(struct dm_table *t); - -/* - * Table reference counting. - */ -struct dm_table *dm_get_table(struct mapped_device *md); -void dm_table_get(struct dm_table *t); -void dm_table_put(struct dm_table *t); - -/* - * Queries - */ -sector_t dm_table_get_size(struct dm_table *t); -unsigned int dm_table_get_num_targets(struct dm_table *t); -int dm_table_get_mode(struct dm_table *t); -struct mapped_device *dm_table_get_md(struct dm_table *t); - -/* - * Trigger an event. - */ -void dm_table_event(struct dm_table *t); - -/* - * The device must be suspended before calling this method. - */ -int dm_swap_table(struct mapped_device *md, struct dm_table *t); - -/* - * Prepare a table for a device that will error all I/O. - * To make it active, call dm_suspend(), dm_swap_table() then dm_resume(). - */ -int dm_create_error_table(struct dm_table **result, struct mapped_device *md); - -#endif /* __KERNEL__ */ -#endif /* _LINUX_DEVICE_MAPPER_H */ +#endif /* _LINUX_DEVICE_MAPPER_H */