diff options
Diffstat (limited to 'ipc/util.h')
| -rw-r--r-- | ipc/util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h index 2a03d8cc6a01..fa7e7a07486e 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -79,6 +79,8 @@ void __init ipc_init_proc_interface(const char *path, const char *header, #define IPC_MSG_IDS 1 #define IPC_SHM_IDS 2 +#define ipcid_to_idx(id) ((id) % SEQ_MULTIPLIER) + /* must be called with ids->mutex acquired.*/ int ipc_addid(struct ipc_ids *, struct kern_ipc_perm *, int); int ipc_get_maxid(struct ipc_ids *); |