| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | #ifndef _RDS_INFO_H |
| 2 | #define _RDS_INFO_H |
| 3 | |
| 4 | struct rds_info_lengths { |
| 5 | unsigned int nr; |
| 6 | unsigned int each; |
| 7 | }; |
| 8 | |
| 9 | struct rds_info_iterator; |
| 10 | |
| 11 | /* |
| 12 | * These functions must fill in the fields of @lens to reflect the size |
| 13 | * of the available info source. If the snapshot fits in @len then it |
| 14 | * should be copied using @iter. The caller will deduce if it was copied |
| 15 | * or not by comparing the lengths. |
| 16 | */ |
| 17 | typedef void (*rds_info_func)(struct socket *sock, unsigned int len, |
| 18 | struct rds_info_iterator *iter, |
| 19 | struct rds_info_lengths *lens); |
| 20 | |
| 21 | void rds_info_register_func(int optname, rds_info_func func); |
| 22 | void rds_info_deregister_func(int optname, rds_info_func func); |
| 23 | int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval, |
| 24 | int __user *optlen); |
| 25 | void rds_info_copy(struct rds_info_iterator *iter, void *data, |
| 26 | unsigned long bytes); |
| 27 | void rds_info_iter_unmap(struct rds_info_iterator *iter); |
| 28 | |
| 29 | |
| 30 | #endif |