diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/idr.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h index b3a58338ed32..0aeae77806c7 100644 --- a/include/linux/idr.h +++ b/include/linux/idr.h @@ -23,6 +23,7 @@ # error "BITS_PER_LONG is not 32 or 64" #endif +#define IDR_SIZE (1 << IDR_BITS) #define IDR_MASK ((1 << IDR_BITS)-1) /* Define the size of the id's */ @@ -53,6 +54,17 @@ struct idr { spinlock_t lock; }; +#define IDR_INIT(name) \ +{ \ + .top = NULL, \ + .id_free = NULL, \ + .count = 0, \ + .layers = 0, \ + .id_free_cnt = 0, \ + .lock = SPIN_LOCK_UNLOCKED, \ +} +#define DEFINE_IDR(name) struct idr name = IDR_INIT(name) + /* * This is what we export. */ |