| 48,6 → 48,7 |
|---|
| struct idr_layer *id_free; |
| int layers; /* only valid w/o concurrent changes */ |
| int id_free_cnt; |
| int cur; /* current pos for cyclic allocation */ |
| spinlock_t lock; |
| }; |
| |
| 79,10 → 80,9 |
|---|
| */ |
| |
| void *idr_find_slowpath(struct idr *idp, int id); |
| int idr_pre_get(struct idr *idp, gfp_t gfp_mask); |
| int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id); |
| void idr_preload(gfp_t gfp_mask); |
| int idr_alloc(struct idr *idp, void *ptr, int start, int end, gfp_t gfp_mask); |
| int idr_alloc_cyclic(struct idr *idr, void *ptr, int start, int end, gfp_t gfp_mask); |
| int idr_for_each(struct idr *idp, |
| int (*fn)(int id, void *p, void *data), void *data); |
| void *idr_get_next(struct idr *idp, int *nextid); |
| 105,7 → 105,7 |
|---|
| |
| /** |
| * idr_find - return pointer for given id |
| * @idp: idr handle |
| * @idr: idr handle |
| * @id: lookup key |
| * |
| * Return the pointer given the id it has been registered with. A %NULL |
| 126,31 → 126,69 |
|---|
| } |
| |
| /** |
| * idr_get_new - allocate new idr entry |
| * idr_for_each_entry - iterate over an idr's elements of a given type |
| * @idp: idr handle |
| * @entry: the type * to use as cursor |
| * @id: id entry's key |
| * |
| * @entry and @id do not need to be initialized before the loop, and |
| * after normal terminatinon @entry is left with the value NULL. This |
| * is convenient for a "not found" value. |
| */ |
| #define idr_for_each_entry(idp, entry, id) \ |
| for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id) |
| |
| /* |
| * Don't use the following functions. These exist only to suppress |
| * deprecated warnings on EXPORT_SYMBOL()s. |
| */ |
| int __idr_pre_get(struct idr *idp, gfp_t gfp_mask); |
| int __idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id); |
| void __idr_remove_all(struct idr *idp); |
| |
| /** |
| * idr_pre_get - reserve resources for idr allocation |
| * @idp: idr handle |
| * @gfp_mask: memory allocation flags |
| * |
| * Part of old alloc interface. This is going away. Use |
| * idr_preload[_end]() and idr_alloc() instead. |
| */ |
| static inline int __deprecated idr_pre_get(struct idr *idp, gfp_t gfp_mask) |
| { |
| return __idr_pre_get(idp, gfp_mask); |
| } |
| |
| /** |
| * idr_get_new_above - allocate new idr entry above or equal to a start id |
| * @idp: idr handle |
| * @ptr: pointer you want associated with the id |
| * @starting_id: id to start search at |
| * @id: pointer to the allocated handle |
| * |
| * Simple wrapper around idr_get_new_above() w/ @starting_id of zero. |
| * Part of old alloc interface. This is going away. Use |
| * idr_preload[_end]() and idr_alloc() instead. |
| */ |
| static inline int idr_get_new(struct idr *idp, void *ptr, int *id) |
| static inline int __deprecated idr_get_new_above(struct idr *idp, void *ptr, |
| int starting_id, int *id) |
| { |
| return idr_get_new_above(idp, ptr, 0, id); |
| return __idr_get_new_above(idp, ptr, starting_id, id); |
| } |
| |
| /** |
| * idr_for_each_entry - iterate over an idr's elements of a given type |
| * idr_get_new - allocate new idr entry |
| * @idp: idr handle |
| * @entry: the type * to use as cursor |
| * @id: id entry's key |
| * @ptr: pointer you want associated with the id |
| * @id: pointer to the allocated handle |
| * |
| * Part of old alloc interface. This is going away. Use |
| * idr_preload[_end]() and idr_alloc() instead. |
| */ |
| #define idr_for_each_entry(idp, entry, id) \ |
| for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \ |
| entry != NULL; \ |
| ++id, entry = (typeof(entry))idr_get_next((idp), &(id))) |
| static inline int __deprecated idr_get_new(struct idr *idp, void *ptr, int *id) |
| { |
| return __idr_get_new_above(idp, ptr, 0, id); |
| } |
| |
| void __idr_remove_all(struct idr *idp); /* don't use */ |
| |
| /** |
| * idr_remove_all - remove all ids from the given idr tree |
| * @idp: idr handle |
| 193,8 → 231,22 |
|---|
| void ida_destroy(struct ida *ida); |
| void ida_init(struct ida *ida); |
| |
| void __init idr_init_cache(void); |
| int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end, |
| gfp_t gfp_mask); |
| void ida_simple_remove(struct ida *ida, unsigned int id); |
| |
| /** |
| * ida_get_new - allocate new ID |
| * @ida: idr handle |
| * @p_id: pointer to the allocated handle |
| * |
| * Simple wrapper around ida_get_new_above() w/ @starting_id of zero. |
| */ |
| static inline int ida_get_new(struct ida *ida, int *p_id) |
| { |
| return ida_get_new_above(ida, 0, p_id); |
| } |
| |
| void __init idr_init_cache(void); |
| |
| #endif /* __IDR_H__ */ |