X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Fsysfs.c;h=b981c87edd1f7f316c5f820b56d33f9427997fb4;hb=46a6b9210c927ab46fd1227cb6f641be0b4a7505;hp=6d1596322ee2d9105df7188e8018b3e0eb856502;hpb=38f8daa2b17627488c51f2e0c150213bd1636e00;p=bcachefs-tools-debian diff --git a/libbcachefs/sysfs.c b/libbcachefs/sysfs.c index 6d15963..b981c87 100644 --- a/libbcachefs/sysfs.c +++ b/libbcachefs/sysfs.c @@ -27,6 +27,7 @@ #include "journal.h" #include "keylist.h" #include "move.h" +#include "nocow_locking.h" #include "opts.h" #include "rebalance.h" #include "replicas.h" @@ -40,46 +41,75 @@ #include "util.h" #define SYSFS_OPS(type) \ -struct sysfs_ops type ## _sysfs_ops = { \ +const struct sysfs_ops type ## _sysfs_ops = { \ .show = type ## _show, \ .store = type ## _store \ } #define SHOW(fn) \ +static ssize_t fn ## _to_text(struct printbuf *, \ + struct kobject *, struct attribute *); \ + \ static ssize_t fn ## _show(struct kobject *kobj, struct attribute *attr,\ char *buf) \ +{ \ + struct printbuf out = PRINTBUF; \ + ssize_t ret = fn ## _to_text(&out, kobj, attr); \ + \ + if (out.pos && out.buf[out.pos - 1] != '\n') \ + prt_newline(&out); \ + \ + if (!ret && out.allocation_failure) \ + ret = -ENOMEM; \ + \ + if (!ret) { \ + ret = min_t(size_t, out.pos, PAGE_SIZE - 1); \ + memcpy(buf, out.buf, ret); \ + } \ + printbuf_exit(&out); \ + return bch2_err_class(ret); \ +} \ + \ +static ssize_t fn ## _to_text(struct printbuf *out, struct kobject *kobj,\ + struct attribute *attr) #define STORE(fn) \ +static ssize_t fn ## _store_inner(struct kobject *, struct attribute *,\ + const char *, size_t); \ + \ static ssize_t fn ## _store(struct kobject *kobj, struct attribute *attr,\ const char *buf, size_t size) \ +{ \ + return bch2_err_class(fn##_store_inner(kobj, attr, buf, size)); \ +} \ + \ +static ssize_t fn ## _store_inner(struct kobject *kobj, struct attribute *attr,\ + const char *buf, size_t size) #define __sysfs_attribute(_name, _mode) \ static struct attribute sysfs_##_name = \ { .name = #_name, .mode = _mode } -#define write_attribute(n) __sysfs_attribute(n, S_IWUSR) -#define read_attribute(n) __sysfs_attribute(n, S_IRUGO) -#define rw_attribute(n) __sysfs_attribute(n, S_IRUGO|S_IWUSR) +#define write_attribute(n) __sysfs_attribute(n, 0200) +#define read_attribute(n) __sysfs_attribute(n, 0444) +#define rw_attribute(n) __sysfs_attribute(n, 0644) #define sysfs_printf(file, fmt, ...) \ do { \ if (attr == &sysfs_ ## file) \ - return scnprintf(buf, PAGE_SIZE, fmt "\n", __VA_ARGS__);\ + prt_printf(out, fmt "\n", __VA_ARGS__); \ } while (0) #define sysfs_print(file, var) \ do { \ if (attr == &sysfs_ ## file) \ - return snprint(buf, PAGE_SIZE, var); \ + snprint(out, var); \ } while (0) #define sysfs_hprint(file, val) \ do { \ - if (attr == &sysfs_ ## file) { \ - bch2_hprint(&out, val); \ - pr_buf(&out, "\n"); \ - return out.pos - buf; \ - } \ + if (attr == &sysfs_ ## file) \ + prt_human_readable_s64(out, val); \ } while (0) #define var_printf(_var, fmt) sysfs_printf(_var, fmt, var(_var)) @@ -133,7 +163,10 @@ do { \ } while (0) write_attribute(trigger_gc); +write_attribute(trigger_discards); +write_attribute(trigger_invalidates); write_attribute(prune_cache); +write_attribute(btree_wakeup); rw_attribute(btree_gc_periodic); rw_attribute(gc_gens_pos); @@ -142,7 +175,7 @@ read_attribute(minor); read_attribute(bucket_size); read_attribute(first_bucket); read_attribute(nbuckets); -read_attribute(durability); +rw_attribute(durability); read_attribute(iodone); read_attribute(io_latency_read); @@ -151,30 +184,50 @@ read_attribute(io_latency_stats_read); read_attribute(io_latency_stats_write); read_attribute(congested); -read_attribute(btree_avg_write_size); +read_attribute(btree_write_stats); -read_attribute(reserve_stats); read_attribute(btree_cache_size); read_attribute(compression_stats); read_attribute(journal_debug); -read_attribute(journal_pins); read_attribute(btree_updates); -read_attribute(dirty_btree_nodes); read_attribute(btree_cache); read_attribute(btree_key_cache); -read_attribute(btree_transactions); read_attribute(stripes_heap); read_attribute(open_buckets); +read_attribute(write_points); +read_attribute(nocow_lock_table); + +#ifdef BCH_WRITE_REF_DEBUG +read_attribute(write_refs); + +const char * const bch2_write_refs[] = { +#define x(n) #n, + BCH_WRITE_REFS() +#undef x + NULL +}; + +static void bch2_write_refs_to_text(struct printbuf *out, struct bch_fs *c) +{ + bch2_printbuf_tabstop_push(out, 24); + + for (unsigned i = 0; i < ARRAY_SIZE(c->writes); i++) { + prt_str(out, bch2_write_refs[i]); + prt_tab(out); + prt_printf(out, "%li", atomic_long_read(&c->writes[i])); + prt_newline(out); + } +} +#endif read_attribute(internal_uuid); read_attribute(has_data); read_attribute(alloc_debug); -write_attribute(wake_allocator); -read_attribute(read_realloc_races); -read_attribute(extent_migrate_done); -read_attribute(extent_migrate_raced); +#define x(t, n, ...) read_attribute(t); +BCH_PERSISTENT_COUNTERS() +#undef x rw_attribute(discard); rw_attribute(label); @@ -192,7 +245,7 @@ read_attribute(new_stripes); read_attribute(io_timers_read); read_attribute(io_timers_write); -read_attribute(data_op_data_progress); +read_attribute(data_jobs); #ifdef CONFIG_BCACHEFS_TESTS write_attribute(perf_test); @@ -200,13 +253,13 @@ write_attribute(perf_test); #define x(_name) \ static struct attribute sysfs_time_stat_##_name = \ - { .name = #_name, .mode = S_IRUGO }; + { .name = #_name, .mode = 0444 }; BCH_TIME_STATS() #undef x static struct attribute sysfs_state_rw = { .name = "state", - .mode = S_IRUGO + .mode = 0444, }; static size_t bch2_btree_cache_size(struct bch_fs *c) @@ -222,40 +275,20 @@ static size_t bch2_btree_cache_size(struct bch_fs *c) return ret; } -static size_t bch2_btree_avg_write_size(struct bch_fs *c) -{ - u64 nr = atomic64_read(&c->btree_writes_nr); - u64 sectors = atomic64_read(&c->btree_writes_sectors); - - return nr ? div64_u64(sectors, nr) : 0; -} - -static long stats_to_text(struct printbuf *out, struct bch_fs *c, - struct bch_move_stats *stats) -{ - pr_buf(out, "%s: data type %s btree_id %s position: ", - stats->name, - bch2_data_types[stats->data_type], - bch2_btree_ids[stats->btree_id]); - bch2_bpos_to_text(out, stats->pos); - pr_buf(out, "%s", "\n"); - - return 0; -} - static long data_progress_to_text(struct printbuf *out, struct bch_fs *c) { long ret = 0; - struct bch_move_stats *iter; + struct bch_move_stats *stats; mutex_lock(&c->data_progress_lock); - - if (list_empty(&c->data_progress_list)) - pr_buf(out, "%s", "no progress to report\n"); - else - list_for_each_entry(iter, &c->data_progress_list, list) { - stats_to_text(out, c, iter); - } + list_for_each_entry(stats, &c->data_progress_list, list) { + prt_printf(out, "%s: data type %s btree_id %s position: ", + stats->name, + bch2_data_types[stats->data_type], + bch2_btree_ids[stats->btree_id]); + bch2_bpos_to_text(out, stats->pos); + prt_printf(out, "%s", "\n"); + } mutex_unlock(&c->data_progress_lock); return ret; @@ -282,7 +315,7 @@ static int bch2_compression_stats_to_text(struct printbuf *out, struct bch_fs *c bch2_trans_init(&trans, c, 0, 0); for (id = 0; id < BTREE_ID_NR; id++) { - if (!((1U << id) & BTREE_ID_HAS_PTRS)) + if (!btree_type_has_ptrs(id)) continue; for_each_btree_key(&trans, iter, id, POS_MIN, @@ -327,60 +360,67 @@ static int bch2_compression_stats_to_text(struct printbuf *out, struct bch_fs *c if (ret) return ret; - pr_buf(out, "uncompressed:\n"); - pr_buf(out, " nr extents: %llu\n", nr_uncompressed_extents); - pr_buf(out, " size: "); - bch2_hprint(out, uncompressed_sectors << 9); - pr_buf(out, "\n"); - - pr_buf(out, "compressed:\n"); - pr_buf(out, " nr extents: %llu\n", nr_compressed_extents); - pr_buf(out, " compressed size: "); - bch2_hprint(out, compressed_sectors_compressed << 9); - pr_buf(out, "\n"); - pr_buf(out, " uncompressed size: "); - bch2_hprint(out, compressed_sectors_uncompressed << 9); - pr_buf(out, "\n"); - - pr_buf(out, "incompressible:\n"); - pr_buf(out, " nr extents: %llu\n", nr_incompressible_extents); - pr_buf(out, " size: "); - bch2_hprint(out, incompressible_sectors << 9); - pr_buf(out, "\n"); + prt_printf(out, "uncompressed:\n"); + prt_printf(out, " nr extents: %llu\n", nr_uncompressed_extents); + prt_printf(out, " size: "); + prt_human_readable_u64(out, uncompressed_sectors << 9); + prt_printf(out, "\n"); + + prt_printf(out, "compressed:\n"); + prt_printf(out, " nr extents: %llu\n", nr_compressed_extents); + prt_printf(out, " compressed size: "); + prt_human_readable_u64(out, compressed_sectors_compressed << 9); + prt_printf(out, "\n"); + prt_printf(out, " uncompressed size: "); + prt_human_readable_u64(out, compressed_sectors_uncompressed << 9); + prt_printf(out, "\n"); + + prt_printf(out, "incompressible:\n"); + prt_printf(out, " nr extents: %llu\n", nr_incompressible_extents); + prt_printf(out, " size: "); + prt_human_readable_u64(out, incompressible_sectors << 9); + prt_printf(out, "\n"); return 0; } static void bch2_gc_gens_pos_to_text(struct printbuf *out, struct bch_fs *c) { - pr_buf(out, "%s: ", bch2_btree_ids[c->gc_gens_btree]); + prt_printf(out, "%s: ", bch2_btree_ids[c->gc_gens_btree]); bch2_bpos_to_text(out, c->gc_gens_pos); - pr_buf(out, "\n"); + prt_printf(out, "\n"); +} + +static void bch2_btree_wakeup_all(struct bch_fs *c) +{ + struct btree_trans *trans; + + mutex_lock(&c->btree_trans_lock); + list_for_each_entry(trans, &c->btree_trans_list, list) { + struct btree_bkey_cached_common *b = READ_ONCE(trans->locking); + + if (b) + six_lock_wakeup_all(&b->lock); + + } + mutex_unlock(&c->btree_trans_lock); } SHOW(bch2_fs) { struct bch_fs *c = container_of(kobj, struct bch_fs, kobj); - struct printbuf out = _PBUF(buf, PAGE_SIZE); sysfs_print(minor, c->minor); sysfs_printf(internal_uuid, "%pU", c->sb.uuid.b); sysfs_hprint(btree_cache_size, bch2_btree_cache_size(c)); - sysfs_hprint(btree_avg_write_size, bch2_btree_avg_write_size(c)); - sysfs_print(read_realloc_races, - atomic_long_read(&c->read_realloc_races)); - sysfs_print(extent_migrate_done, - atomic_long_read(&c->extent_migrate_done)); - sysfs_print(extent_migrate_raced, - atomic_long_read(&c->extent_migrate_raced)); + if (attr == &sysfs_btree_write_stats) + bch2_btree_write_stats_to_text(out, c); sysfs_printf(btree_gc_periodic, "%u", (int) c->btree_gc_periodic); - if (attr == &sysfs_gc_gens_pos) { - bch2_gc_gens_pos_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_gc_gens_pos) + bch2_gc_gens_pos_to_text(out, c); sysfs_printf(copy_gc_enabled, "%i", c->copy_gc_enabled); @@ -390,83 +430,56 @@ SHOW(bch2_fs) max(0LL, c->copygc_wait - atomic64_read(&c->io_clock[WRITE].now)) << 9); - if (attr == &sysfs_rebalance_work) { - bch2_rebalance_work_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_rebalance_work) + bch2_rebalance_work_to_text(out, c); sysfs_print(promote_whole_extents, c->promote_whole_extents); /* Debugging: */ - if (attr == &sysfs_journal_debug) { - bch2_journal_debug_to_text(&out, &c->journal); - return out.pos - buf; - } + if (attr == &sysfs_journal_debug) + bch2_journal_debug_to_text(out, &c->journal); - if (attr == &sysfs_journal_pins) { - bch2_journal_pins_to_text(&out, &c->journal); - return out.pos - buf; - } + if (attr == &sysfs_btree_updates) + bch2_btree_updates_to_text(out, c); - if (attr == &sysfs_btree_updates) { - bch2_btree_updates_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_btree_cache) + bch2_btree_cache_to_text(out, &c->btree_cache); - if (attr == &sysfs_dirty_btree_nodes) { - bch2_dirty_btree_nodes_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_btree_key_cache) + bch2_btree_key_cache_to_text(out, &c->btree_key_cache); - if (attr == &sysfs_btree_cache) { - bch2_btree_cache_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_stripes_heap) + bch2_stripes_heap_to_text(out, c); - if (attr == &sysfs_btree_key_cache) { - bch2_btree_key_cache_to_text(&out, &c->btree_key_cache); - return out.pos - buf; - } + if (attr == &sysfs_open_buckets) + bch2_open_buckets_to_text(out, c); - if (attr == &sysfs_btree_transactions) { - bch2_btree_trans_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_write_points) + bch2_write_points_to_text(out, c); - if (attr == &sysfs_stripes_heap) { - bch2_stripes_heap_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_compression_stats) + bch2_compression_stats_to_text(out, c); - if (attr == &sysfs_open_buckets) { - bch2_open_buckets_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_new_stripes) + bch2_new_stripes_to_text(out, c); - if (attr == &sysfs_compression_stats) { - bch2_compression_stats_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_io_timers_read) + bch2_io_timers_to_text(out, &c->io_clock[READ]); - if (attr == &sysfs_new_stripes) { - bch2_new_stripes_to_text(&out, c); - return out.pos - buf; - } + if (attr == &sysfs_io_timers_write) + bch2_io_timers_to_text(out, &c->io_clock[WRITE]); - if (attr == &sysfs_io_timers_read) { - bch2_io_timers_to_text(&out, &c->io_clock[READ]); - return out.pos - buf; - } - if (attr == &sysfs_io_timers_write) { - bch2_io_timers_to_text(&out, &c->io_clock[WRITE]); - return out.pos - buf; - } + if (attr == &sysfs_data_jobs) + data_progress_to_text(out, c); - if (attr == &sysfs_data_op_data_progress) { - data_progress_to_text(&out, c); - return out.pos - buf; - } +#ifdef BCH_WRITE_REF_DEBUG + if (attr == &sysfs_write_refs) + bch2_write_refs_to_text(out, c); +#endif + + if (attr == &sysfs_nocow_lock_table) + bch2_nocow_locks_to_text(out, &c->nocow_locks); return 0; } @@ -511,6 +524,20 @@ STORE(bch2_fs) /* Debugging: */ + if (!test_bit(BCH_FS_RW, &c->flags)) + return -EROFS; + + if (attr == &sysfs_prune_cache) { + struct shrink_control sc; + + sc.gfp_mask = GFP_KERNEL; + sc.nr_to_scan = strtoul_or_return(buf); + c->btree_cache.shrink.scan_objects(&c->btree_cache.shrink, &sc); + } + + if (attr == &sysfs_btree_wakeup) + bch2_btree_wakeup_all(c); + if (attr == &sysfs_trigger_gc) { /* * Full gc is currently incompatible with btree key cache: @@ -524,13 +551,11 @@ STORE(bch2_fs) #endif } - if (attr == &sysfs_prune_cache) { - struct shrink_control sc; + if (attr == &sysfs_trigger_discards) + bch2_do_discards(c); - sc.gfp_mask = GFP_KERNEL; - sc.nr_to_scan = strtoul_or_return(buf); - c->btree_cache.shrink.scan_objects(&c->btree_cache.shrink, &sc); - } + if (attr == &sysfs_trigger_invalidates) + bch2_do_invalidates(c); #ifdef CONFIG_BCACHEFS_TESTS if (attr == &sysfs_perf_test) { @@ -559,7 +584,7 @@ SYSFS_OPS(bch2_fs); struct attribute *bch2_fs_files[] = { &sysfs_minor, &sysfs_btree_cache_size, - &sysfs_btree_avg_write_size, + &sysfs_btree_write_stats, &sysfs_promote_whole_extents, @@ -571,41 +596,86 @@ struct attribute *bch2_fs_files[] = { NULL }; +/* counters dir */ + +SHOW(bch2_fs_counters) +{ + struct bch_fs *c = container_of(kobj, struct bch_fs, counters_kobj); + u64 counter = 0; + u64 counter_since_mount = 0; + + printbuf_tabstop_push(out, 32); + + #define x(t, ...) \ + if (attr == &sysfs_##t) { \ + counter = percpu_u64_get(&c->counters[BCH_COUNTER_##t]);\ + counter_since_mount = counter - c->counters_on_mount[BCH_COUNTER_##t];\ + prt_printf(out, "since mount:"); \ + prt_tab(out); \ + prt_human_readable_u64(out, counter_since_mount << 9); \ + prt_newline(out); \ + \ + prt_printf(out, "since filesystem creation:"); \ + prt_tab(out); \ + prt_human_readable_u64(out, counter << 9); \ + prt_newline(out); \ + } + BCH_PERSISTENT_COUNTERS() + #undef x + return 0; +} + +STORE(bch2_fs_counters) { + return 0; +} + +SYSFS_OPS(bch2_fs_counters); + +struct attribute *bch2_fs_counters_files[] = { +#define x(t, ...) \ + &sysfs_##t, + BCH_PERSISTENT_COUNTERS() +#undef x + NULL +}; /* internal dir - just a wrapper */ SHOW(bch2_fs_internal) { struct bch_fs *c = container_of(kobj, struct bch_fs, internal); - return bch2_fs_show(&c->kobj, attr, buf); + + return bch2_fs_to_text(out, &c->kobj, attr); } STORE(bch2_fs_internal) { struct bch_fs *c = container_of(kobj, struct bch_fs, internal); + return bch2_fs_store(&c->kobj, attr, buf, size); } SYSFS_OPS(bch2_fs_internal); struct attribute *bch2_fs_internal_files[] = { &sysfs_journal_debug, - &sysfs_journal_pins, &sysfs_btree_updates, - &sysfs_dirty_btree_nodes, &sysfs_btree_cache, &sysfs_btree_key_cache, - &sysfs_btree_transactions, &sysfs_new_stripes, &sysfs_stripes_heap, &sysfs_open_buckets, + &sysfs_write_points, +#ifdef BCH_WRITE_REF_DEBUG + &sysfs_write_refs, +#endif + &sysfs_nocow_lock_table, &sysfs_io_timers_read, &sysfs_io_timers_write, &sysfs_trigger_gc, + &sysfs_trigger_discards, + &sysfs_trigger_invalidates, &sysfs_prune_cache, - - &sysfs_read_realloc_races, - &sysfs_extent_migrate_done, - &sysfs_extent_migrate_raced, + &sysfs_btree_wakeup, &sysfs_gc_gens_pos, @@ -616,7 +686,7 @@ struct attribute *bch2_fs_internal_files[] = { &sysfs_rebalance_work, sysfs_pd_controller_files(rebalance), - &sysfs_data_op_data_progress, + &sysfs_data_jobs, &sysfs_internal_uuid, NULL @@ -626,16 +696,15 @@ struct attribute *bch2_fs_internal_files[] = { SHOW(bch2_fs_opts_dir) { - struct printbuf out = _PBUF(buf, PAGE_SIZE); struct bch_fs *c = container_of(kobj, struct bch_fs, opts_dir); const struct bch_option *opt = container_of(attr, struct bch_option, attr); int id = opt - bch2_opt_table; u64 v = bch2_opt_get_by_id(&c->opts, id); - bch2_opt_to_text(&out, c, opt, v, OPT_SHOW_FULL_LIST); - pr_buf(&out, "\n"); + bch2_opt_to_text(out, c, c->disk_sb.sb, opt, v, OPT_SHOW_FULL_LIST); + prt_char(out, '\n'); - return out.pos - buf; + return 0; } STORE(bch2_fs_opts_dir) @@ -646,19 +715,28 @@ STORE(bch2_fs_opts_dir) char *tmp; u64 v; + /* + * We don't need to take c->writes for correctness, but it eliminates an + * unsightly error message in the dmesg log when we're RO: + */ + if (unlikely(!bch2_write_ref_tryget(c, BCH_WRITE_REF_sysfs))) + return -EROFS; + tmp = kstrdup(buf, GFP_KERNEL); - if (!tmp) - return -ENOMEM; + if (!tmp) { + ret = -ENOMEM; + goto err; + } - ret = bch2_opt_parse(c, NULL, opt, strim(tmp), &v); + ret = bch2_opt_parse(c, opt, strim(tmp), &v, NULL); kfree(tmp); if (ret < 0) - return ret; + goto err; ret = bch2_opt_check_may_set(c, id, v); if (ret < 0) - return ret; + goto err; bch2_opt_set_sb(c, opt, v); bch2_opt_set_by_id(&c->opts, id, v); @@ -669,7 +747,10 @@ STORE(bch2_fs_opts_dir) rebalance_wakeup(c); } - return size; + ret = size; +err: + bch2_write_ref_put(c, BCH_WRITE_REF_sysfs); + return ret; } SYSFS_OPS(bch2_fs_opts_dir); @@ -699,13 +780,10 @@ int bch2_opts_create_sysfs_files(struct kobject *kobj) SHOW(bch2_fs_time_stats) { struct bch_fs *c = container_of(kobj, struct bch_fs, time_stats); - struct printbuf out = _PBUF(buf, PAGE_SIZE); #define x(name) \ - if (attr == &sysfs_time_stat_##name) { \ - bch2_time_stats_to_text(&out, &c->times[BCH_TIME_##name]);\ - return out.pos - buf; \ - } + if (attr == &sysfs_time_stat_##name) \ + bch2_time_stats_to_text(out, &c->times[BCH_TIME_##name]); BCH_TIME_STATS() #undef x @@ -726,24 +804,6 @@ struct attribute *bch2_fs_time_stats_files[] = { NULL }; -static void reserve_stats_to_text(struct printbuf *out, struct bch_dev *ca) -{ - enum alloc_reserve i; - - spin_lock(&ca->fs->freelist_lock); - - pr_buf(out, "free_inc:\t%zu\t%zu\n", - fifo_used(&ca->free_inc), - ca->free_inc.size); - - for (i = 0; i < RESERVE_NR; i++) - pr_buf(out, "free[%u]:\t%zu\t%zu\n", i, - fifo_used(&ca->free[i]), - ca->free[i].size); - - spin_unlock(&ca->fs->freelist_lock); -} - static void dev_alloc_debug_to_text(struct printbuf *out, struct bch_dev *ca) { struct bch_fs *c = ca->fs; @@ -755,23 +815,19 @@ static void dev_alloc_debug_to_text(struct printbuf *out, struct bch_dev *ca) for (i = 0; i < ARRAY_SIZE(c->open_buckets); i++) nr[c->open_buckets[i].data_type]++; - pr_buf(out, - "\t\t buckets\t sectors fragmented\n" - "capacity%16llu\n", + prt_printf(out, + "\t\t\t buckets\t sectors fragmented\n" + "capacity\t%16llu\n", ca->mi.nbuckets - ca->mi.first_bucket); - for (i = 1; i < BCH_DATA_NR; i++) - pr_buf(out, "%-8s%16llu%16llu%16llu\n", + for (i = 0; i < BCH_DATA_NR; i++) + prt_printf(out, "%-16s%16llu%16llu%16llu\n", bch2_data_types[i], stats.d[i].buckets, stats.d[i].sectors, stats.d[i].fragmented); - pr_buf(out, - "ec\t%16llu\n" - "available%15llu\n" + prt_printf(out, + "ec\t\t%16llu\n" "\n" - "free_inc\t\t%zu/%zu\n" - "free[RESERVE_MOVINGGC]\t%zu/%zu\n" - "free[RESERVE_NONE]\t%zu/%zu\n" "freelist_wait\t\t%s\n" "open buckets allocated\t%u\n" "open buckets this dev\t%u\n" @@ -779,13 +835,9 @@ static void dev_alloc_debug_to_text(struct printbuf *out, struct bch_dev *ca) "open_buckets_wait\t%s\n" "open_buckets_btree\t%u\n" "open_buckets_user\t%u\n" - "btree reserve cache\t%u\n" - "thread state:\t\t%s\n", + "buckets_to_invalidate\t%llu\n" + "btree reserve cache\t%u\n", stats.buckets_ec, - __dev_buckets_available(ca, stats), - fifo_used(&ca->free_inc), ca->free_inc.size, - fifo_used(&ca->free[RESERVE_MOVINGGC]), ca->free[RESERVE_MOVINGGC].size, - fifo_used(&ca->free[RESERVE_NONE]), ca->free[RESERVE_NONE].size, c->freelist_wait.list.first ? "waiting" : "empty", OPEN_BUCKETS_COUNT - c->open_buckets_nr_free, ca->nr_open_buckets, @@ -793,8 +845,8 @@ static void dev_alloc_debug_to_text(struct printbuf *out, struct bch_dev *ca) c->open_buckets_wait.list.first ? "waiting" : "empty", nr[BCH_DATA_btree], nr[BCH_DATA_user], - c->btree_reserve_cache_nr, - bch2_allocator_states[ca->allocator_state]); + should_invalidate_buckets(ca, stats), + c->btree_reserve_cache_nr); } static const char * const bch2_rw[] = { @@ -808,10 +860,10 @@ static void dev_iodone_to_text(struct printbuf *out, struct bch_dev *ca) int rw, i; for (rw = 0; rw < 2; rw++) { - pr_buf(out, "%s:\n", bch2_rw[rw]); + prt_printf(out, "%s:\n", bch2_rw[rw]); for (i = 1; i < BCH_DATA_NR; i++) - pr_buf(out, "%-12s:%12llu\n", + prt_printf(out, "%-12s:%12llu\n", bch2_data_types[i], percpu_u64_get(&ca->io_done->sectors[rw][i]) << 9); } @@ -821,7 +873,6 @@ SHOW(bch2_dev) { struct bch_dev *ca = container_of(kobj, struct bch_dev, kobj); struct bch_fs *c = ca->fs; - struct printbuf out = _PBUF(buf, PAGE_SIZE); sysfs_printf(uuid, "%pU\n", ca->uuid.b); @@ -834,58 +885,42 @@ SHOW(bch2_dev) if (attr == &sysfs_label) { if (ca->mi.group) { mutex_lock(&c->sb_lock); - bch2_disk_path_to_text(&out, &c->disk_sb, + bch2_disk_path_to_text(out, c->disk_sb.sb, ca->mi.group - 1); mutex_unlock(&c->sb_lock); } - pr_buf(&out, "\n"); - return out.pos - buf; + prt_char(out, '\n'); } if (attr == &sysfs_has_data) { - bch2_flags_to_text(&out, bch2_data_types, - bch2_dev_has_data(c, ca)); - pr_buf(&out, "\n"); - return out.pos - buf; + prt_bitflags(out, bch2_data_types, bch2_dev_has_data(c, ca)); + prt_char(out, '\n'); } if (attr == &sysfs_state_rw) { - bch2_string_opt_to_text(&out, bch2_member_states, - ca->mi.state); - pr_buf(&out, "\n"); - return out.pos - buf; + prt_string_option(out, bch2_member_states, ca->mi.state); + prt_char(out, '\n'); } - if (attr == &sysfs_iodone) { - dev_iodone_to_text(&out, ca); - return out.pos - buf; - } + if (attr == &sysfs_iodone) + dev_iodone_to_text(out, ca); sysfs_print(io_latency_read, atomic64_read(&ca->cur_latency[READ])); sysfs_print(io_latency_write, atomic64_read(&ca->cur_latency[WRITE])); - if (attr == &sysfs_io_latency_stats_read) { - bch2_time_stats_to_text(&out, &ca->io_latency[READ]); - return out.pos - buf; - } - if (attr == &sysfs_io_latency_stats_write) { - bch2_time_stats_to_text(&out, &ca->io_latency[WRITE]); - return out.pos - buf; - } + if (attr == &sysfs_io_latency_stats_read) + bch2_time_stats_to_text(out, &ca->io_latency[READ]); + + if (attr == &sysfs_io_latency_stats_write) + bch2_time_stats_to_text(out, &ca->io_latency[WRITE]); sysfs_printf(congested, "%u%%", clamp(atomic_read(&ca->congested), 0, CONGESTED_MAX) * 100 / CONGESTED_MAX); - if (attr == &sysfs_reserve_stats) { - reserve_stats_to_text(&out, ca); - return out.pos - buf; - } - if (attr == &sysfs_alloc_debug) { - dev_alloc_debug_to_text(&out, ca); - return out.pos - buf; - } + if (attr == &sysfs_alloc_debug) + dev_alloc_debug_to_text(out, ca); return 0; } @@ -909,6 +944,19 @@ STORE(bch2_dev) mutex_unlock(&c->sb_lock); } + if (attr == &sysfs_durability) { + u64 v = strtoul_or_return(buf); + + mutex_lock(&c->sb_lock); + mi = &bch2_sb_get_members(c->disk_sb.sb)->members[ca->dev_idx]; + + if (v != BCH_MEMBER_DURABILITY(mi)) { + SET_BCH_MEMBER_DURABILITY(mi, v + 1); + bch2_write_super(c); + } + mutex_unlock(&c->sb_lock); + } + if (attr == &sysfs_label) { char *tmp; int ret; @@ -923,9 +971,6 @@ STORE(bch2_dev) return ret; } - if (attr == &sysfs_wake_allocator) - bch2_wake_allocator(ca); - return size; } SYSFS_OPS(bch2_dev); @@ -951,11 +996,8 @@ struct attribute *bch2_dev_files[] = { &sysfs_io_latency_stats_write, &sysfs_congested, - &sysfs_reserve_stats, - /* debug: */ &sysfs_alloc_debug, - &sysfs_wake_allocator, NULL };