5 extern int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev);
6 extern void r5l_exit_log(struct r5conf *conf);
13 extern bool r5l_log_disk_error(struct r5conf *conf);
16 r5c_try_caching_write(struct r5conf *conf, struct stripe_head *sh,
19 r5c_finish_stripe_write_out(struct r5conf *conf, struct stripe_head *sh,
24 extern void r5c_handle_cached_data_endio(struct r5conf *conf,
28 extern void r5c_flush_cache(struct r5conf *conf, int num);
29 extern void r5c_check_stripe_cache_usage(struct r5conf *conf);
30 extern void r5c_check_cached_full_stripe(struct r5conf *conf);
34 extern bool r5c_big_stripe_cached(struct r5conf *conf, sector_t sect);
40 extern int ppl_init_log(struct r5conf *conf);
41 extern void ppl_exit_log(struct r5conf *conf);
42 extern int ppl_write_stripe(struct r5conf *conf, struct stripe_head *sh);
43 extern void ppl_write_stripe_run(struct r5conf *conf);
45 extern int ppl_modify_log(struct r5conf *conf, struct md_rdev *rdev, bool add);
46 extern void ppl_quiesce(struct r5conf *conf, int quiesce);
50 static inline bool raid5_has_log(struct r5conf *conf)  in raid5_has_log()  argument
52 	return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);  in raid5_has_log()
55 static inline bool raid5_has_ppl(struct r5conf *conf)  in raid5_has_ppl()  argument
57 	return test_bit(MD_HAS_PPL, &conf->mddev->flags);  in raid5_has_ppl()
62 	struct r5conf *conf = sh->raid_conf;  in log_stripe()  local
64 	if (conf->log) {  in log_stripe()
69 			return r5l_write_stripe(conf->log, sh);  in log_stripe()
72 			return r5c_cache_data(conf->log, sh);  in log_stripe()
74 	} else if (raid5_has_ppl(conf)) {  in log_stripe()
75 		return ppl_write_stripe(conf, sh);  in log_stripe()
83 	struct r5conf *conf = sh->raid_conf;  in log_stripe_write_finished()  local
85 	if (conf->log)  in log_stripe_write_finished()
87 	else if (raid5_has_ppl(conf))  in log_stripe_write_finished()
91 static inline void log_write_stripe_run(struct r5conf *conf)  in log_write_stripe_run()  argument
93 	if (conf->log)  in log_write_stripe_run()
94 		r5l_write_stripe_run(conf->log);  in log_write_stripe_run()
95 	else if (raid5_has_ppl(conf))  in log_write_stripe_run()
96 		ppl_write_stripe_run(conf);  in log_write_stripe_run()
99 static inline void log_flush_stripe_to_raid(struct r5conf *conf)  in log_flush_stripe_to_raid()  argument
101 	if (conf->log)  in log_flush_stripe_to_raid()
102 		r5l_flush_stripe_to_raid(conf->log);  in log_flush_stripe_to_raid()
103 	else if (raid5_has_ppl(conf))  in log_flush_stripe_to_raid()
104 		ppl_write_stripe_run(conf);  in log_flush_stripe_to_raid()
107 static inline int log_handle_flush_request(struct r5conf *conf, struct bio *bio)  in log_handle_flush_request()  argument
111 	if (conf->log)  in log_handle_flush_request()
112 		ret = r5l_handle_flush_request(conf->log, bio);  in log_handle_flush_request()
113 	else if (raid5_has_ppl(conf))  in log_handle_flush_request()
114 		ret = ppl_handle_flush_request(conf->log, bio);  in log_handle_flush_request()
119 static inline void log_quiesce(struct r5conf *conf, int quiesce)  in log_quiesce()  argument
121 	if (conf->log)  in log_quiesce()
122 		r5l_quiesce(conf->log, quiesce);  in log_quiesce()
123 	else if (raid5_has_ppl(conf))  in log_quiesce()
124 		ppl_quiesce(conf, quiesce);  in log_quiesce()
127 static inline void log_exit(struct r5conf *conf)  in log_exit()  argument
129 	if (conf->log)  in log_exit()
130 		r5l_exit_log(conf);  in log_exit()
131 	else if (raid5_has_ppl(conf))  in log_exit()
132 		ppl_exit_log(conf);  in log_exit()
135 static inline int log_init(struct r5conf *conf, struct md_rdev *journal_dev,  in log_init()  argument
139 		return r5l_init_log(conf, journal_dev);  in log_init()
141 		return ppl_init_log(conf);  in log_init()
146 static inline int log_modify(struct r5conf *conf, struct md_rdev *rdev, bool add)  in log_modify()  argument
148 	if (raid5_has_ppl(conf))  in log_modify()
149 		return ppl_modify_log(conf, rdev, add);  in log_modify()