+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * bcache sysfs interfaces
- *
- * Copyright 2010, 2011 Kent Overstreet <kent.overstreet@gmail.com>
- * Copyright 2012 Google, Inc.
- */
-
-#ifndef NO_BCACHEFS_SYSFS
-
-#include "bcachefs.h"
-#include "alloc_background.h"
-#include "alloc_foreground.h"
-#include "sysfs.h"
-#include "btree_cache.h"
-#include "btree_io.h"
-#include "btree_iter.h"
-#include "btree_key_cache.h"
-#include "btree_update.h"
-#include "btree_update_interior.h"
-#include "btree_gc.h"
-#include "buckets.h"
-#include "clock.h"
-#include "disk_groups.h"
-#include "ec.h"
-#include "inode.h"
-#include "journal.h"
-#include "keylist.h"
-#include "move.h"
-#include "movinggc.h"
-#include "nocow_locking.h"
-#include "opts.h"
-#include "rebalance.h"
-#include "replicas.h"
-#include "super-io.h"
-#include "tests.h"
-
-#include <linux/blkdev.h>
-#include <linux/sort.h>
-#include <linux/sched/clock.h>
-
-#include "util.h"
-
-#define SYSFS_OPS(type) \
-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, 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) \
- prt_printf(out, fmt "\n", __VA_ARGS__); \
-} while (0)
-
-#define sysfs_print(file, var) \
-do { \
- if (attr == &sysfs_ ## file) \
- snprint(out, var); \
-} while (0)
-
-#define sysfs_hprint(file, val) \
-do { \
- if (attr == &sysfs_ ## file) \
- prt_human_readable_s64(out, val); \
-} while (0)
-
-#define sysfs_strtoul(file, var) \
-do { \
- if (attr == &sysfs_ ## file) \
- return strtoul_safe(buf, var) ?: (ssize_t) size; \
-} while (0)
-
-#define sysfs_strtoul_clamp(file, var, min, max) \
-do { \
- if (attr == &sysfs_ ## file) \
- return strtoul_safe_clamp(buf, var, min, max) \
- ?: (ssize_t) size; \
-} while (0)
-
-#define strtoul_or_return(cp) \
-({ \
- unsigned long _v; \
- int _r = kstrtoul(cp, 10, &_v); \
- if (_r) \
- return _r; \
- _v; \
-})
-
-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);
-
-read_attribute(uuid);
-read_attribute(minor);
-read_attribute(flags);
-read_attribute(bucket_size);
-read_attribute(first_bucket);
-read_attribute(nbuckets);
-rw_attribute(durability);
-read_attribute(io_done);
-read_attribute(io_errors);
-write_attribute(io_errors_reset);
-
-read_attribute(io_latency_read);
-read_attribute(io_latency_write);
-read_attribute(io_latency_stats_read);
-read_attribute(io_latency_stats_write);
-read_attribute(congested);
-
-read_attribute(btree_write_stats);
-
-read_attribute(btree_cache_size);
-read_attribute(compression_stats);
-read_attribute(journal_debug);
-read_attribute(btree_updates);
-read_attribute(btree_cache);
-read_attribute(btree_key_cache);
-read_attribute(stripes_heap);
-read_attribute(open_buckets);
-read_attribute(open_buckets_partial);
-read_attribute(write_points);
-read_attribute(nocow_lock_table);
-
-#ifdef BCH_WRITE_REF_DEBUG
-read_attribute(write_refs);
-
-static 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(disk_groups);
-
-read_attribute(has_data);
-read_attribute(alloc_debug);
-
-#define x(t, n, ...) read_attribute(t);
-BCH_PERSISTENT_COUNTERS()
-#undef x
-
-rw_attribute(discard);
-rw_attribute(label);
-
-rw_attribute(copy_gc_enabled);
-read_attribute(copy_gc_wait);
-
-rw_attribute(rebalance_enabled);
-sysfs_pd_controller_attribute(rebalance);
-read_attribute(rebalance_status);
-rw_attribute(promote_whole_extents);
-
-read_attribute(new_stripes);
-
-read_attribute(io_timers_read);
-read_attribute(io_timers_write);
-
-read_attribute(moving_ctxts);
-
-#ifdef CONFIG_BCACHEFS_TESTS
-write_attribute(perf_test);
-#endif /* CONFIG_BCACHEFS_TESTS */
-
-#define x(_name) \
- static struct attribute sysfs_time_stat_##_name = \
- { .name = #_name, .mode = 0444 };
- BCH_TIME_STATS()
-#undef x
-
-static struct attribute sysfs_state_rw = {
- .name = "state",
- .mode = 0444,
-};
-
-static size_t bch2_btree_cache_size(struct bch_fs *c)
-{
- size_t ret = 0;
- struct btree *b;
-
- mutex_lock(&c->btree_cache.lock);
- list_for_each_entry(b, &c->btree_cache.live, list)
- ret += btree_bytes(c);
-
- mutex_unlock(&c->btree_cache.lock);
- return ret;
-}
-
-static int bch2_compression_stats_to_text(struct printbuf *out, struct bch_fs *c)
-{
- struct btree_trans *trans;
- enum btree_id id;
- struct compression_type_stats {
- u64 nr_extents;
- u64 sectors_compressed;
- u64 sectors_uncompressed;
- } s[BCH_COMPRESSION_TYPE_NR];
- u64 compressed_incompressible = 0;
- int ret = 0;
-
- memset(s, 0, sizeof(s));
-
- if (!test_bit(BCH_FS_started, &c->flags))
- return -EPERM;
-
- trans = bch2_trans_get(c);
-
- for (id = 0; id < BTREE_ID_NR; id++) {
- if (!btree_type_has_ptrs(id))
- continue;
-
- ret = for_each_btree_key(trans, iter, id, POS_MIN,
- BTREE_ITER_ALL_SNAPSHOTS, k, ({
- struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
- struct bch_extent_crc_unpacked crc;
- const union bch_extent_entry *entry;
- bool compressed = false, incompressible = false;
-
- bkey_for_each_crc(k.k, ptrs, crc, entry) {
- incompressible |= crc.compression_type == BCH_COMPRESSION_TYPE_incompressible;
- compressed |= crc_is_compressed(crc);
-
- if (crc_is_compressed(crc)) {
- s[crc.compression_type].nr_extents++;
- s[crc.compression_type].sectors_compressed += crc.compressed_size;
- s[crc.compression_type].sectors_uncompressed += crc.uncompressed_size;
- }
- }
-
- compressed_incompressible += compressed && incompressible;
-
- if (!compressed) {
- unsigned t = incompressible ? BCH_COMPRESSION_TYPE_incompressible : 0;
-
- s[t].nr_extents++;
- s[t].sectors_compressed += k.k->size;
- s[t].sectors_uncompressed += k.k->size;
- }
- 0;
- }));
- }
-
- bch2_trans_put(trans);
-
- if (ret)
- return ret;
-
- prt_str(out, "type");
- printbuf_tabstop_push(out, 12);
- prt_tab(out);
-
- prt_str(out, "compressed");
- printbuf_tabstop_push(out, 16);
- prt_tab_rjust(out);
-
- prt_str(out, "uncompressed");
- printbuf_tabstop_push(out, 16);
- prt_tab_rjust(out);
-
- prt_str(out, "average extent size");
- printbuf_tabstop_push(out, 24);
- prt_tab_rjust(out);
- prt_newline(out);
-
- for (unsigned i = 0; i < ARRAY_SIZE(s); i++) {
- prt_str(out, bch2_compression_types[i]);
- prt_tab(out);
-
- prt_human_readable_u64(out, s[i].sectors_compressed << 9);
- prt_tab_rjust(out);
-
- prt_human_readable_u64(out, s[i].sectors_uncompressed << 9);
- prt_tab_rjust(out);
-
- prt_human_readable_u64(out, s[i].nr_extents
- ? div_u64(s[i].sectors_uncompressed << 9, s[i].nr_extents)
- : 0);
- prt_tab_rjust(out);
- prt_newline(out);
- }
-
- if (compressed_incompressible) {
- prt_printf(out, "%llu compressed & incompressible extents", compressed_incompressible);
- prt_newline(out);
- }
-
- return 0;
-}
-
-static void bch2_gc_gens_pos_to_text(struct printbuf *out, struct bch_fs *c)
-{
- prt_printf(out, "%s: ", bch2_btree_id_str(c->gc_gens_btree));
- bch2_bpos_to_text(out, c->gc_gens_pos);
- prt_printf(out, "\n");
-}
-
-static void bch2_btree_wakeup_all(struct bch_fs *c)
-{
- struct btree_trans *trans;
-
- seqmutex_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);
-
- }
- seqmutex_unlock(&c->btree_trans_lock);
-}
-
-SHOW(bch2_fs)
-{
- struct bch_fs *c = container_of(kobj, struct bch_fs, kobj);
-
- sysfs_print(minor, c->minor);
- sysfs_printf(internal_uuid, "%pU", c->sb.uuid.b);
-
- if (attr == &sysfs_flags)
- prt_bitflags(out, bch2_fs_flag_strs, c->flags);
-
- sysfs_hprint(btree_cache_size, bch2_btree_cache_size(c));
-
- 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);
-
- sysfs_printf(copy_gc_enabled, "%i", c->copy_gc_enabled);
-
- sysfs_printf(rebalance_enabled, "%i", c->rebalance.enabled);
- sysfs_pd_controller_show(rebalance, &c->rebalance.pd); /* XXX */
-
- if (attr == &sysfs_copy_gc_wait)
- bch2_copygc_wait_to_text(out, c);
-
- if (attr == &sysfs_rebalance_status)
- bch2_rebalance_status_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);
-
- if (attr == &sysfs_btree_updates)
- bch2_btree_updates_to_text(out, c);
-
- if (attr == &sysfs_btree_cache)
- bch2_btree_cache_to_text(out, c);
-
- if (attr == &sysfs_btree_key_cache)
- bch2_btree_key_cache_to_text(out, &c->btree_key_cache);
-
- if (attr == &sysfs_stripes_heap)
- bch2_stripes_heap_to_text(out, c);
-
- if (attr == &sysfs_open_buckets)
- bch2_open_buckets_to_text(out, c);
-
- if (attr == &sysfs_open_buckets_partial)
- bch2_open_buckets_partial_to_text(out, c);
-
- if (attr == &sysfs_write_points)
- bch2_write_points_to_text(out, c);
-
- if (attr == &sysfs_compression_stats)
- bch2_compression_stats_to_text(out, c);
-
- if (attr == &sysfs_new_stripes)
- bch2_new_stripes_to_text(out, c);
-
- if (attr == &sysfs_io_timers_read)
- bch2_io_timers_to_text(out, &c->io_clock[READ]);
-
- if (attr == &sysfs_io_timers_write)
- bch2_io_timers_to_text(out, &c->io_clock[WRITE]);
-
- if (attr == &sysfs_moving_ctxts)
- bch2_fs_moving_ctxts_to_text(out, c);
-
-#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);
-
- if (attr == &sysfs_disk_groups)
- bch2_disk_groups_to_text(out, c);
-
- return 0;
-}
-
-STORE(bch2_fs)
-{
- struct bch_fs *c = container_of(kobj, struct bch_fs, kobj);
-
- if (attr == &sysfs_btree_gc_periodic) {
- ssize_t ret = strtoul_safe(buf, c->btree_gc_periodic)
- ?: (ssize_t) size;
-
- wake_up_process(c->gc_thread);
- return ret;
- }
-
- if (attr == &sysfs_copy_gc_enabled) {
- ssize_t ret = strtoul_safe(buf, c->copy_gc_enabled)
- ?: (ssize_t) size;
-
- if (c->copygc_thread)
- wake_up_process(c->copygc_thread);
- return ret;
- }
-
- if (attr == &sysfs_rebalance_enabled) {
- ssize_t ret = strtoul_safe(buf, c->rebalance.enabled)
- ?: (ssize_t) size;
-
- rebalance_wakeup(c);
- return ret;
- }
-
- sysfs_pd_controller_store(rebalance, &c->rebalance.pd);
-
- sysfs_strtoul(promote_whole_extents, c->promote_whole_extents);
-
- /* Debugging: */
-
- if (!test_bit(BCH_FS_started, &c->flags))
- return -EPERM;
-
- /* 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:
- */
-#if 0
- down_read(&c->state_lock);
- bch2_gc(c, false, false);
- up_read(&c->state_lock);
-#else
- bch2_gc_gens(c);
-#endif
- }
-
- if (attr == &sysfs_trigger_discards)
- bch2_do_discards(c);
-
- if (attr == &sysfs_trigger_invalidates)
- bch2_do_invalidates(c);
-
-#ifdef CONFIG_BCACHEFS_TESTS
- if (attr == &sysfs_perf_test) {
- char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp;
- char *test = strsep(&p, " \t\n");
- char *nr_str = strsep(&p, " \t\n");
- char *threads_str = strsep(&p, " \t\n");
- unsigned threads;
- u64 nr;
- int ret = -EINVAL;
-
- if (threads_str &&
- !(ret = kstrtouint(threads_str, 10, &threads)) &&
- !(ret = bch2_strtoull_h(nr_str, &nr)))
- ret = bch2_btree_perf_test(c, test, nr, threads);
- kfree(tmp);
-
- if (ret)
- size = ret;
- }
-#endif
- return size;
-}
-SYSFS_OPS(bch2_fs);
-
-struct attribute *bch2_fs_files[] = {
- &sysfs_minor,
- &sysfs_btree_cache_size,
- &sysfs_btree_write_stats,
-
- &sysfs_promote_whole_extents,
-
- &sysfs_compression_stats,
-
-#ifdef CONFIG_BCACHEFS_TESTS
- &sysfs_perf_test,
-#endif
- 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); \
- prt_newline(out); \
- \
- prt_printf(out, "since filesystem creation:"); \
- prt_tab(out); \
- prt_human_readable_u64(out, counter); \
- 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_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_flags,
- &sysfs_journal_debug,
- &sysfs_btree_updates,
- &sysfs_btree_cache,
- &sysfs_btree_key_cache,
- &sysfs_new_stripes,
- &sysfs_stripes_heap,
- &sysfs_open_buckets,
- &sysfs_open_buckets_partial,
- &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_btree_wakeup,
-
- &sysfs_gc_gens_pos,
-
- &sysfs_copy_gc_enabled,
- &sysfs_copy_gc_wait,
-
- &sysfs_rebalance_enabled,
- &sysfs_rebalance_status,
- sysfs_pd_controller_files(rebalance),
-
- &sysfs_moving_ctxts,
-
- &sysfs_internal_uuid,
-
- &sysfs_disk_groups,
- NULL
-};
-
-/* options */
-
-SHOW(bch2_fs_opts_dir)
-{
- 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, c->disk_sb.sb, opt, v, OPT_SHOW_FULL_LIST);
- prt_char(out, '\n');
-
- return 0;
-}
-
-STORE(bch2_fs_opts_dir)
-{
- 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 ret, id = opt - bch2_opt_table;
- 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) {
- ret = -ENOMEM;
- goto err;
- }
-
- ret = bch2_opt_parse(c, opt, strim(tmp), &v, NULL);
- kfree(tmp);
-
- if (ret < 0)
- goto err;
-
- ret = bch2_opt_check_may_set(c, id, v);
- if (ret < 0)
- goto err;
-
- bch2_opt_set_sb(c, opt, v);
- bch2_opt_set_by_id(&c->opts, id, v);
-
- if ((id == Opt_background_target ||
- id == Opt_background_compression) && v)
- bch2_set_rebalance_needs_scan(c, 0);
-
- ret = size;
-err:
- bch2_write_ref_put(c, BCH_WRITE_REF_sysfs);
- return ret;
-}
-SYSFS_OPS(bch2_fs_opts_dir);
-
-struct attribute *bch2_fs_opts_dir_files[] = { NULL };
-
-int bch2_opts_create_sysfs_files(struct kobject *kobj)
-{
- const struct bch_option *i;
- int ret;
-
- for (i = bch2_opt_table;
- i < bch2_opt_table + bch2_opts_nr;
- i++) {
- if (!(i->flags & OPT_FS))
- continue;
-
- ret = sysfs_create_file(kobj, &i->attr);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-/* time stats */
-
-SHOW(bch2_fs_time_stats)
-{
- struct bch_fs *c = container_of(kobj, struct bch_fs, time_stats);
-
-#define x(name) \
- if (attr == &sysfs_time_stat_##name) \
- bch2_time_stats_to_text(out, &c->times[BCH_TIME_##name]);
- BCH_TIME_STATS()
-#undef x
-
- return 0;
-}
-
-STORE(bch2_fs_time_stats)
-{
- return size;
-}
-SYSFS_OPS(bch2_fs_time_stats);
-
-struct attribute *bch2_fs_time_stats_files[] = {
-#define x(name) \
- &sysfs_time_stat_##name,
- BCH_TIME_STATS()
-#undef x
- NULL
-};
-
-static void dev_alloc_debug_to_text(struct printbuf *out, struct bch_dev *ca)
-{
- struct bch_fs *c = ca->fs;
- struct bch_dev_usage stats = bch2_dev_usage_read(ca);
- unsigned i, nr[BCH_DATA_NR];
-
- memset(nr, 0, sizeof(nr));
-
- for (i = 0; i < ARRAY_SIZE(c->open_buckets); i++)
- nr[c->open_buckets[i].data_type]++;
-
- printbuf_tabstop_push(out, 8);
- printbuf_tabstop_push(out, 16);
- printbuf_tabstop_push(out, 16);
- printbuf_tabstop_push(out, 16);
- printbuf_tabstop_push(out, 16);
-
- bch2_dev_usage_to_text(out, &stats);
-
- prt_newline(out);
-
- prt_printf(out, "reserves:");
- prt_newline(out);
- for (i = 0; i < BCH_WATERMARK_NR; i++) {
- prt_str(out, bch2_watermarks[i]);
- prt_tab(out);
- prt_u64(out, bch2_dev_buckets_reserved(ca, i));
- prt_tab_rjust(out);
- prt_newline(out);
- }
-
- prt_newline(out);
-
- printbuf_tabstops_reset(out);
- printbuf_tabstop_push(out, 24);
-
- prt_str(out, "freelist_wait");
- prt_tab(out);
- prt_str(out, c->freelist_wait.list.first ? "waiting" : "empty");
- prt_newline(out);
-
- prt_str(out, "open buckets allocated");
- prt_tab(out);
- prt_u64(out, OPEN_BUCKETS_COUNT - c->open_buckets_nr_free);
- prt_newline(out);
-
- prt_str(out, "open buckets this dev");
- prt_tab(out);
- prt_u64(out, ca->nr_open_buckets);
- prt_newline(out);
-
- prt_str(out, "open buckets total");
- prt_tab(out);
- prt_u64(out, OPEN_BUCKETS_COUNT);
- prt_newline(out);
-
- prt_str(out, "open_buckets_wait");
- prt_tab(out);
- prt_str(out, c->open_buckets_wait.list.first ? "waiting" : "empty");
- prt_newline(out);
-
- prt_str(out, "open_buckets_btree");
- prt_tab(out);
- prt_u64(out, nr[BCH_DATA_btree]);
- prt_newline(out);
-
- prt_str(out, "open_buckets_user");
- prt_tab(out);
- prt_u64(out, nr[BCH_DATA_user]);
- prt_newline(out);
-
- prt_str(out, "buckets_to_invalidate");
- prt_tab(out);
- prt_u64(out, should_invalidate_buckets(ca, stats));
- prt_newline(out);
-
- prt_str(out, "btree reserve cache");
- prt_tab(out);
- prt_u64(out, c->btree_reserve_cache_nr);
- prt_newline(out);
-}
-
-static const char * const bch2_rw[] = {
- "read",
- "write",
- NULL
-};
-
-static void dev_io_done_to_text(struct printbuf *out, struct bch_dev *ca)
-{
- int rw, i;
-
- for (rw = 0; rw < 2; rw++) {
- prt_printf(out, "%s:\n", bch2_rw[rw]);
-
- for (i = 1; i < BCH_DATA_NR; i++)
- prt_printf(out, "%-12s:%12llu\n",
- bch2_data_types[i],
- percpu_u64_get(&ca->io_done->sectors[rw][i]) << 9);
- }
-}
-
-SHOW(bch2_dev)
-{
- struct bch_dev *ca = container_of(kobj, struct bch_dev, kobj);
- struct bch_fs *c = ca->fs;
-
- sysfs_printf(uuid, "%pU\n", ca->uuid.b);
-
- sysfs_print(bucket_size, bucket_bytes(ca));
- sysfs_print(first_bucket, ca->mi.first_bucket);
- sysfs_print(nbuckets, ca->mi.nbuckets);
- sysfs_print(durability, ca->mi.durability);
- sysfs_print(discard, ca->mi.discard);
-
- if (attr == &sysfs_label) {
- if (ca->mi.group)
- bch2_disk_path_to_text(out, c, ca->mi.group - 1);
- prt_char(out, '\n');
- }
-
- if (attr == &sysfs_has_data) {
- prt_bitflags(out, bch2_data_types, bch2_dev_has_data(c, ca));
- prt_char(out, '\n');
- }
-
- if (attr == &sysfs_state_rw) {
- prt_string_option(out, bch2_member_states, ca->mi.state);
- prt_char(out, '\n');
- }
-
- if (attr == &sysfs_io_done)
- dev_io_done_to_text(out, ca);
-
- if (attr == &sysfs_io_errors)
- bch2_dev_io_errors_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]);
-
- 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_alloc_debug)
- dev_alloc_debug_to_text(out, ca);
-
- return 0;
-}
-
-STORE(bch2_dev)
-{
- struct bch_dev *ca = container_of(kobj, struct bch_dev, kobj);
- struct bch_fs *c = ca->fs;
- struct bch_member *mi;
-
- if (attr == &sysfs_discard) {
- bool v = strtoul_or_return(buf);
-
- mutex_lock(&c->sb_lock);
- mi = bch2_members_v2_get_mut(c->disk_sb.sb, ca->dev_idx);
-
- if (v != BCH_MEMBER_DISCARD(mi)) {
- SET_BCH_MEMBER_DISCARD(mi, v);
- bch2_write_super(c);
- }
- mutex_unlock(&c->sb_lock);
- }
-
- if (attr == &sysfs_durability) {
- u64 v = strtoul_or_return(buf);
-
- mutex_lock(&c->sb_lock);
- mi = bch2_members_v2_get_mut(c->disk_sb.sb, ca->dev_idx);
-
- if (v + 1 != 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;
-
- tmp = kstrdup(buf, GFP_KERNEL);
- if (!tmp)
- return -ENOMEM;
-
- ret = bch2_dev_group_set(c, ca, strim(tmp));
- kfree(tmp);
- if (ret)
- return ret;
- }
-
- if (attr == &sysfs_io_errors_reset)
- bch2_dev_errors_reset(ca);
-
- return size;
-}
-SYSFS_OPS(bch2_dev);
-
-struct attribute *bch2_dev_files[] = {
- &sysfs_uuid,
- &sysfs_bucket_size,
- &sysfs_first_bucket,
- &sysfs_nbuckets,
- &sysfs_durability,
-
- /* settings: */
- &sysfs_discard,
- &sysfs_state_rw,
- &sysfs_label,
-
- &sysfs_has_data,
- &sysfs_io_done,
- &sysfs_io_errors,
- &sysfs_io_errors_reset,
-
- &sysfs_io_latency_read,
- &sysfs_io_latency_write,
- &sysfs_io_latency_stats_read,
- &sysfs_io_latency_stats_write,
- &sysfs_congested,
-
- /* debug: */
- &sysfs_alloc_debug,
- NULL
-};
-
-#endif /* _BCACHEFS_SYSFS_H_ */
projects / bcachefs-tools-debian / blobdiff