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);
49 static inline bool raid5_has_log(struct r5conf *conf)  in raid5_has_log()  argument
51 	return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);  in raid5_has_log()
54 static inline bool raid5_has_ppl(struct r5conf *conf)  in raid5_has_ppl()  argument
56 	return test_bit(MD_HAS_PPL, &conf->mddev->flags);  in raid5_has_ppl()
61 	struct r5conf *conf = sh->raid_conf;  in log_stripe()  local
63 	if (conf->log) {  in log_stripe()
68 			return r5l_write_stripe(conf->log, sh);  in log_stripe()
71 			return r5c_cache_data(conf->log, sh);  in log_stripe()
73 	} else if (raid5_has_ppl(conf)) {  in log_stripe()
74 		return ppl_write_stripe(conf, sh);  in log_stripe()
82 	struct r5conf *conf = sh->raid_conf;  in log_stripe_write_finished()  local
84 	if (conf->log)  in log_stripe_write_finished()
86 	else if (raid5_has_ppl(conf))  in log_stripe_write_finished()
90 static inline void log_write_stripe_run(struct r5conf *conf)  in log_write_stripe_run()  argument
92 	if (conf->log)  in log_write_stripe_run()
93 		r5l_write_stripe_run(conf->log);  in log_write_stripe_run()
94 	else if (raid5_has_ppl(conf))  in log_write_stripe_run()
95 		ppl_write_stripe_run(conf);  in log_write_stripe_run()
98 static inline void log_flush_stripe_to_raid(struct r5conf *conf)  in log_flush_stripe_to_raid()  argument
100 	if (conf->log)  in log_flush_stripe_to_raid()
101 		r5l_flush_stripe_to_raid(conf->log);  in log_flush_stripe_to_raid()
102 	else if (raid5_has_ppl(conf))  in log_flush_stripe_to_raid()
103 		ppl_write_stripe_run(conf);  in log_flush_stripe_to_raid()
106 static inline int log_handle_flush_request(struct r5conf *conf, struct bio *bio)  in log_handle_flush_request()  argument
110 	if (conf->log)  in log_handle_flush_request()
111 		ret = r5l_handle_flush_request(conf->log, bio);  in log_handle_flush_request()
112 	else if (raid5_has_ppl(conf))  in log_handle_flush_request()
113 		ret = ppl_handle_flush_request(conf->log, bio);  in log_handle_flush_request()
118 static inline void log_quiesce(struct r5conf *conf, int quiesce)  in log_quiesce()  argument
120 	if (conf->log)  in log_quiesce()
121 		r5l_quiesce(conf->log, quiesce);  in log_quiesce()
122 	else if (raid5_has_ppl(conf))  in log_quiesce()
123 		ppl_quiesce(conf, quiesce);  in log_quiesce()
126 static inline void log_exit(struct r5conf *conf)  in log_exit()  argument
128 	if (conf->log)  in log_exit()
129 		r5l_exit_log(conf);  in log_exit()
130 	else if (raid5_has_ppl(conf))  in log_exit()
131 		ppl_exit_log(conf);  in log_exit()
134 static inline int log_init(struct r5conf *conf, struct md_rdev *journal_dev,  in log_init()  argument
138 		return r5l_init_log(conf, journal_dev);  in log_init()
140 		return ppl_init_log(conf);  in log_init()
145 static inline int log_modify(struct r5conf *conf, struct md_rdev *rdev, bool add)  in log_modify()  argument
147 	if (raid5_has_ppl(conf))  in log_modify()
148 		return ppl_modify_log(conf, rdev, add);  in log_modify()