^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _RAID5_LOG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _RAID5_LOG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) extern int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) extern void r5l_exit_log(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) extern int r5l_write_stripe(struct r5l_log *log, struct stripe_head *head_sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) extern void r5l_write_stripe_run(struct r5l_log *log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) extern void r5l_flush_stripe_to_raid(struct r5l_log *log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) extern void r5l_stripe_write_finished(struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) extern int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) extern void r5l_quiesce(struct r5l_log *log, int quiesce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) extern bool r5l_log_disk_error(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) extern bool r5c_is_writeback(struct r5l_log *log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) extern int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) r5c_try_caching_write(struct r5conf *conf, struct stripe_head *sh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct stripe_head_state *s, int disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) extern void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) r5c_finish_stripe_write_out(struct r5conf *conf, struct stripe_head *sh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct stripe_head_state *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) extern void r5c_release_extra_page(struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) extern void r5c_use_extra_page(struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) extern void r5l_wake_reclaim(struct r5l_log *log, sector_t space);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) extern void r5c_handle_cached_data_endio(struct r5conf *conf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct stripe_head *sh, int disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) extern int r5c_cache_data(struct r5l_log *log, struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) extern void r5c_make_stripe_write_out(struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) extern void r5c_flush_cache(struct r5conf *conf, int num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) extern void r5c_check_stripe_cache_usage(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern void r5c_check_cached_full_stripe(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) extern struct md_sysfs_entry r5c_journal_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) extern void r5c_update_on_rdev_error(struct mddev *mddev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct md_rdev *rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) extern bool r5c_big_stripe_cached(struct r5conf *conf, sector_t sect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) extern int r5l_start(struct r5l_log *log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) extern struct dma_async_tx_descriptor *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ops_run_partial_parity(struct stripe_head *sh, struct raid5_percpu *percpu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct dma_async_tx_descriptor *tx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) extern int ppl_init_log(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) extern void ppl_exit_log(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) extern int ppl_write_stripe(struct r5conf *conf, struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) extern void ppl_write_stripe_run(struct r5conf *conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) extern void ppl_stripe_write_finished(struct stripe_head *sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) extern int ppl_modify_log(struct r5conf *conf, struct md_rdev *rdev, bool add);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) extern void ppl_quiesce(struct r5conf *conf, int quiesce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) extern int ppl_handle_flush_request(struct r5l_log *log, struct bio *bio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) extern struct md_sysfs_entry ppl_write_hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static inline bool raid5_has_log(struct r5conf *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static inline bool raid5_has_ppl(struct r5conf *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return test_bit(MD_HAS_PPL, &conf->mddev->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static inline int log_stripe(struct stripe_head *sh, struct stripe_head_state *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct r5conf *conf = sh->raid_conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (conf->log) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (!test_bit(STRIPE_R5C_CACHING, &sh->state)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* writing out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (s->waiting_extra_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return r5l_write_stripe(conf->log, sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) } else if (test_bit(STRIPE_LOG_TRAPPED, &sh->state)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) /* caching phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return r5c_cache_data(conf->log, sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) } else if (raid5_has_ppl(conf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return ppl_write_stripe(conf, sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static inline void log_stripe_write_finished(struct stripe_head *sh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct r5conf *conf = sh->raid_conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) r5l_stripe_write_finished(sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) ppl_stripe_write_finished(sh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static inline void log_write_stripe_run(struct r5conf *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) r5l_write_stripe_run(conf->log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ppl_write_stripe_run(conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static inline void log_flush_stripe_to_raid(struct r5conf *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) r5l_flush_stripe_to_raid(conf->log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ppl_write_stripe_run(conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static inline int log_handle_flush_request(struct r5conf *conf, struct bio *bio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) int ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) ret = r5l_handle_flush_request(conf->log, bio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ret = ppl_handle_flush_request(conf->log, bio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static inline void log_quiesce(struct r5conf *conf, int quiesce)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) r5l_quiesce(conf->log, quiesce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) ppl_quiesce(conf, quiesce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static inline void log_exit(struct r5conf *conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (conf->log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) r5l_exit_log(conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) else if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ppl_exit_log(conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static inline int log_init(struct r5conf *conf, struct md_rdev *journal_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) bool ppl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (journal_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return r5l_init_log(conf, journal_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) else if (ppl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return ppl_init_log(conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static inline int log_modify(struct r5conf *conf, struct md_rdev *rdev, bool add)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (raid5_has_ppl(conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return ppl_modify_log(conf, rdev, add);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags