#include <linux/mutex.h>
#include <linux/percpu-refcount.h>
#include <linux/percpu-rwsem.h>
+#include <linux/refcount.h>
#include <linux/rhashtable.h>
#include <linux/rwsem.h>
#include <linux/semaphore.h>
#include <linux/seqlock.h>
#include <linux/shrinker.h>
#include <linux/srcu.h>
+#include <linux/thread_with_file_types.h>
+#include <linux/time_stats.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include <linux/zstd.h>
#include "fifo.h"
#include "nocow_locking_types.h"
#include "opts.h"
+#include "recovery_types.h"
+#include "sb-errors_types.h"
#include "seqmutex.h"
#include "util.h"
#define race_fault(...) dynamic_fault("bcachefs:race")
+#define count_event(_c, _name) this_cpu_inc((_c)->counters[BCH_COUNTER_##_name])
+
#define trace_and_count(_c, _name, ...) \
do { \
- this_cpu_inc((_c)->counters[BCH_COUNTER_##_name]); \
+ count_event(_c, _name); \
trace_##_name(__VA_ARGS__); \
} while (0)
#define bch2_fmt(_c, fmt) bch2_log_msg(_c, fmt "\n")
+__printf(2, 3)
+void __bch2_print(struct bch_fs *c, const char *fmt, ...);
+
+#define maybe_dev_to_fs(_c) _Generic((_c), \
+ struct bch_dev *: ((struct bch_dev *) (_c))->fs, \
+ struct bch_fs *: (_c))
+
+#define bch2_print(_c, ...) __bch2_print(maybe_dev_to_fs(_c), __VA_ARGS__)
+
+#define bch2_print_ratelimited(_c, ...) \
+do { \
+ static DEFINE_RATELIMIT_STATE(_rs, \
+ DEFAULT_RATELIMIT_INTERVAL, \
+ DEFAULT_RATELIMIT_BURST); \
+ \
+ if (__ratelimit(&_rs)) \
+ bch2_print(_c, __VA_ARGS__); \
+} while (0)
+
#define bch_info(c, fmt, ...) \
- printk(KERN_INFO bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_INFO bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_notice(c, fmt, ...) \
- printk(KERN_NOTICE bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_NOTICE bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_warn(c, fmt, ...) \
- printk(KERN_WARNING bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_WARNING bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_warn_ratelimited(c, fmt, ...) \
- printk_ratelimited(KERN_WARNING bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(c, KERN_WARNING bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_err(c, fmt, ...) \
- printk(KERN_ERR bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_ERR bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_err_dev(ca, fmt, ...) \
- printk(KERN_ERR bch2_fmt_dev(ca, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_ERR bch2_fmt_dev(ca, fmt), ##__VA_ARGS__)
#define bch_err_dev_offset(ca, _offset, fmt, ...) \
- printk(KERN_ERR bch2_fmt_dev_offset(ca, _offset, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_ERR bch2_fmt_dev_offset(ca, _offset, fmt), ##__VA_ARGS__)
#define bch_err_inum(c, _inum, fmt, ...) \
- printk(KERN_ERR bch2_fmt_inum(c, _inum, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_ERR bch2_fmt_inum(c, _inum, fmt), ##__VA_ARGS__)
#define bch_err_inum_offset(c, _inum, _offset, fmt, ...) \
- printk(KERN_ERR bch2_fmt_inum_offset(c, _inum, _offset, fmt), ##__VA_ARGS__)
+ bch2_print(c, KERN_ERR bch2_fmt_inum_offset(c, _inum, _offset, fmt), ##__VA_ARGS__)
#define bch_err_ratelimited(c, fmt, ...) \
- printk_ratelimited(KERN_ERR bch2_fmt(c, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(c, KERN_ERR bch2_fmt(c, fmt), ##__VA_ARGS__)
#define bch_err_dev_ratelimited(ca, fmt, ...) \
- printk_ratelimited(KERN_ERR bch2_fmt_dev(ca, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(ca, KERN_ERR bch2_fmt_dev(ca, fmt), ##__VA_ARGS__)
#define bch_err_dev_offset_ratelimited(ca, _offset, fmt, ...) \
- printk_ratelimited(KERN_ERR bch2_fmt_dev_offset(ca, _offset, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(ca, KERN_ERR bch2_fmt_dev_offset(ca, _offset, fmt), ##__VA_ARGS__)
#define bch_err_inum_ratelimited(c, _inum, fmt, ...) \
- printk_ratelimited(KERN_ERR bch2_fmt_inum(c, _inum, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(c, KERN_ERR bch2_fmt_inum(c, _inum, fmt), ##__VA_ARGS__)
#define bch_err_inum_offset_ratelimited(c, _inum, _offset, fmt, ...) \
- printk_ratelimited(KERN_ERR bch2_fmt_inum_offset(c, _inum, _offset, fmt), ##__VA_ARGS__)
+ bch2_print_ratelimited(c, KERN_ERR bch2_fmt_inum_offset(c, _inum, _offset, fmt), ##__VA_ARGS__)
+
+static inline bool should_print_err(int err)
+{
+ return err && !bch2_err_matches(err, BCH_ERR_transaction_restart);
+}
#define bch_err_fn(_c, _ret) \
- bch_err(_c, "%s(): error %s", __func__, bch2_err_str(_ret))
-#define bch_err_msg(_c, _ret, _msg) \
- bch_err(_c, "%s(): error " _msg " %s", __func__, bch2_err_str(_ret))
+do { \
+ if (should_print_err(_ret)) \
+ bch_err(_c, "%s(): error %s", __func__, bch2_err_str(_ret));\
+} while (0)
+
+#define bch_err_fn_ratelimited(_c, _ret) \
+do { \
+ if (should_print_err(_ret)) \
+ bch_err_ratelimited(_c, "%s(): error %s", __func__, bch2_err_str(_ret));\
+} while (0)
+
+#define bch_err_msg(_c, _ret, _msg, ...) \
+do { \
+ if (should_print_err(_ret)) \
+ bch_err(_c, "%s(): error " _msg " %s", __func__, \
+ ##__VA_ARGS__, bch2_err_str(_ret)); \
+} while (0)
#define bch_verbose(c, fmt, ...) \
do { \
#undef BCH_DEBUG_PARAM
#ifndef CONFIG_BCACHEFS_DEBUG
-#define BCH_DEBUG_PARAM(name, description) static const bool bch2_##name;
+#define BCH_DEBUG_PARAM(name, description) static const __maybe_unused bool bch2_##name;
BCH_DEBUG_PARAMS_DEBUG()
#undef BCH_DEBUG_PARAM
#endif
x(btree_node_merge) \
x(btree_node_sort) \
x(btree_node_read) \
+ x(btree_node_read_done) \
x(btree_interior_update_foreground) \
x(btree_interior_update_total) \
x(btree_gc) \
x(journal_flush_write) \
x(journal_noflush_write) \
x(journal_flush_seq) \
- x(blocked_journal) \
+ x(blocked_journal_low_on_space) \
+ x(blocked_journal_low_on_pin) \
+ x(blocked_journal_max_in_flight) \
x(blocked_allocate) \
x(blocked_allocate_open_bucket) \
+ x(blocked_write_buffer_full) \
x(nocow_lock_contended)
enum bch_time_stats {
#include "buckets_types.h"
#include "buckets_waiting_for_journal_types.h"
#include "clock_types.h"
+#include "disk_groups_types.h"
#include "ec_types.h"
#include "journal_types.h"
#include "keylist_types.h"
GC_PHASE_BTREE_backpointers,
GC_PHASE_BTREE_bucket_gens,
GC_PHASE_BTREE_snapshot_trees,
+ GC_PHASE_BTREE_deleted_inodes,
+ GC_PHASE_BTREE_logged_ops,
+ GC_PHASE_BTREE_rebalance_work,
+ GC_PHASE_BTREE_subvolume_children,
GC_PHASE_PENDING_DELETE,
};
* Committed by bch2_write_super() -> bch_fs_mi_update()
*/
struct bch_member_cpu mi;
+ atomic64_t errors[BCH_MEMBER_ERROR_NR];
+
__uuid_t uuid;
char name[BDEVNAME_SIZE];
/* The rest of this all shows up in sysfs */
atomic64_t cur_latency[2];
- struct bch2_time_stats io_latency[2];
+ struct time_stats_quantiles io_latency[2];
#define CONGESTED_MAX 1024
atomic_t congested;
struct io_count __percpu *io_done;
};
-enum {
- /* startup: */
- BCH_FS_STARTED,
- BCH_FS_MAY_GO_RW,
- BCH_FS_RW,
- BCH_FS_WAS_RW,
-
- /* shutdown: */
- BCH_FS_STOPPING,
- BCH_FS_EMERGENCY_RO,
- BCH_FS_GOING_RO,
- BCH_FS_WRITE_DISABLE_COMPLETE,
- BCH_FS_CLEAN_SHUTDOWN,
-
- /* fsck passes: */
- BCH_FS_TOPOLOGY_REPAIR_DONE,
- BCH_FS_FSCK_DONE,
- BCH_FS_INITIAL_GC_UNFIXED, /* kill when we enumerate fsck errors */
- BCH_FS_NEED_ANOTHER_GC,
-
- BCH_FS_HAVE_DELETED_SNAPSHOTS,
-
- /* errors: */
- BCH_FS_ERROR,
- BCH_FS_TOPOLOGY_ERROR,
- BCH_FS_ERRORS_FIXED,
- BCH_FS_ERRORS_NOT_FIXED,
+/*
+ * initial_gc_unfixed
+ * error
+ * topology error
+ */
+
+#define BCH_FS_FLAGS() \
+ x(started) \
+ x(may_go_rw) \
+ x(rw) \
+ x(was_rw) \
+ x(stopping) \
+ x(emergency_ro) \
+ x(going_ro) \
+ x(write_disable_complete) \
+ x(clean_shutdown) \
+ x(fsck_running) \
+ x(initial_gc_unfixed) \
+ x(need_another_gc) \
+ x(need_delete_dead_snapshots) \
+ x(error) \
+ x(topology_error) \
+ x(errors_fixed) \
+ x(errors_not_fixed)
+
+enum bch_fs_flags {
+#define x(n) BCH_FS_##n,
+ BCH_FS_FLAGS()
+#undef x
};
struct btree_debug {
#define BCH_TRANSACTIONS_NR 128
struct btree_transaction_stats {
- struct bch2_time_stats lock_hold_times;
+ struct time_stats duration;
+ struct time_stats lock_hold_times;
struct mutex lock;
unsigned nr_max_paths;
- unsigned wb_updates_size;
+ unsigned journal_entries_size;
unsigned max_mem;
char *max_paths_text;
};
u64 start;
u64 end;
bool dirty;
- } entries[0];
+ } entries[];
};
struct journal_keys {
size_t gap;
size_t nr;
size_t size;
+ atomic_t ref;
+ bool initial_ref_held;
};
-struct btree_path_buf {
- struct btree_path *path;
+struct btree_trans_buf {
+ struct btree_trans *trans;
};
#define REPLICAS_DELTA_LIST_MAX (1U << 16)
x(invalidate) \
x(delete_dead_snapshots) \
x(snapshot_delete_pagecache) \
- x(sysfs)
+ x(sysfs) \
+ x(btree_write_buffer)
enum bch_write_ref {
#define x(n) BCH_WRITE_REF_##n,
BCH_WRITE_REF_NR,
};
-#define PASS_SILENT BIT(0)
-#define PASS_FSCK BIT(1)
-#define PASS_UNCLEAN BIT(2)
-#define PASS_ALWAYS BIT(3)
-#define PASS_UPGRADE(v) ((v) << 4)
-
-#define BCH_RECOVERY_PASSES() \
- x(alloc_read, PASS_ALWAYS) \
- x(stripes_read, PASS_ALWAYS) \
- x(initialize_subvolumes, PASS_UPGRADE(bcachefs_metadata_version_snapshot_2)) \
- x(snapshots_read, PASS_ALWAYS) \
- x(check_allocations, PASS_FSCK) \
- x(set_may_go_rw, PASS_ALWAYS|PASS_SILENT) \
- x(journal_replay, PASS_ALWAYS) \
- x(check_alloc_info, PASS_FSCK) \
- x(check_lrus, PASS_FSCK) \
- x(check_btree_backpointers, PASS_FSCK) \
- x(check_backpointers_to_extents,PASS_FSCK) \
- x(check_extents_to_backpointers,PASS_FSCK) \
- x(check_alloc_to_lru_refs, PASS_FSCK) \
- x(fs_freespace_init, PASS_ALWAYS|PASS_SILENT) \
- x(bucket_gens_init, PASS_UPGRADE(bcachefs_metadata_version_bucket_gens)) \
- x(fs_upgrade_for_subvolumes, PASS_UPGRADE(bcachefs_metadata_version_snapshot_2)) \
- x(check_snapshot_trees, PASS_FSCK) \
- x(check_snapshots, PASS_FSCK) \
- x(check_subvols, PASS_FSCK) \
- x(delete_dead_snapshots, PASS_FSCK|PASS_UNCLEAN|PASS_SILENT) \
- x(check_inodes, PASS_FSCK|PASS_UNCLEAN) \
- x(check_extents, PASS_FSCK) \
- x(check_dirents, PASS_FSCK) \
- x(check_xattrs, PASS_FSCK) \
- x(check_root, PASS_FSCK) \
- x(check_directory_structure, PASS_FSCK) \
- x(check_nlinks, PASS_FSCK) \
- x(fix_reflink_p, PASS_UPGRADE(bcachefs_metadata_version_reflink_p_fix)) \
-
-enum bch_recovery_pass {
-#define x(n, when) BCH_RECOVERY_PASS_##n,
- BCH_RECOVERY_PASSES()
-#undef x
-};
-
struct bch_fs {
struct closure cl;
struct super_block *vfs_sb;
dev_t dev;
char name[40];
+ struct stdio_redirect *stdio;
+ struct task_struct *stdio_filter;
/* ro/rw, add/remove/resize devices: */
struct rw_semaphore state_lock;
#else
struct percpu_ref writes;
#endif
+ /*
+ * Analagous to c->writes, for asynchronous ops that don't necessarily
+ * need fs to be read-write
+ */
+ refcount_t ro_ref;
+ wait_queue_head_t ro_ref_wait;
+
struct work_struct read_only_work;
struct bch_dev __rcu *devs[BCH_SB_MEMBERS_MAX];
unsigned nsec_per_time_unit;
u64 features;
u64 compat;
+ unsigned long errors_silent[BITS_TO_LONGS(BCH_SB_ERR_MAX)];
} sb;
struct mutex sb_lock;
/* snapshot.c: */
- GENRADIX(struct snapshot_t) snapshots;
- struct bch_snapshot_table __rcu *snapshot_table;
+ struct snapshot_table __rcu *snapshots;
+ size_t snapshot_table_size;
struct mutex snapshot_table_lock;
+ struct rw_semaphore snapshot_create_lock;
+
struct work_struct snapshot_delete_work;
struct work_struct snapshot_wait_for_pagecache_and_delete_work;
snapshot_id_list snapshots_unlinked;
/* btree_iter.c: */
struct seqmutex btree_trans_lock;
struct list_head btree_trans_list;
- mempool_t btree_paths_pool;
+ mempool_t btree_trans_pool;
mempool_t btree_trans_mem_pool;
- struct btree_path_buf __percpu *btree_paths_bufs;
+ struct btree_trans_buf __percpu *btree_trans_bufs;
struct srcu_struct btree_trans_barrier;
bool btree_trans_barrier_initialized;
/* ALLOCATOR */
spinlock_t freelist_lock;
struct closure_waitlist freelist_wait;
- u64 blocked_allocate;
- u64 blocked_allocate_open_bucket;
open_bucket_idx_t open_buckets_freelist;
open_bucket_idx_t open_buckets_nr_free;
mempool_t compression_bounce[2];
mempool_t compress_workspace[BCH_COMPRESSION_TYPE_NR];
mempool_t decompress_workspace;
- ZSTD_parameters zstd_params;
+ size_t zstd_workspace_size;
struct crypto_shash *sha256;
struct crypto_sync_skcipher *chacha20;
struct list_head moving_context_list;
struct mutex moving_context_lock;
- struct list_head data_progress_list;
- struct mutex data_progress_lock;
-
/* REBALANCE */
struct bch_fs_rebalance rebalance;
struct bio_set dio_read_bioset;
struct bio_set nocow_flush_bioset;
- /* ERRORS */
- struct list_head fsck_errors;
- struct mutex fsck_error_lock;
- bool fsck_alloc_err;
-
/* QUOTAS */
struct bch_memquota_type quotas[QTYP_NR];
/* RECOVERY */
u64 journal_replay_seq_start;
u64 journal_replay_seq_end;
+ /*
+ * Two different uses:
+ * "Has this fsck pass?" - i.e. should this type of error be an
+ * emergency read-only
+ * And, in certain situations fsck will rewind to an earlier pass: used
+ * for signaling to the toplevel code which pass we want to run now.
+ */
enum bch_recovery_pass curr_recovery_pass;
+ /* bitmap of explicitly enabled recovery passes: */
+ u64 recovery_passes_explicit;
+ /* bitmask of recovery passes that we actually ran */
+ u64 recovery_passes_complete;
+ /* never rewinds version of curr_recovery_pass */
+ enum bch_recovery_pass recovery_pass_done;
+ struct semaphore online_fsck_mutex;
/* DEBUG JUNK */
struct dentry *fs_debug_dir;
unsigned copy_gc_enabled:1;
bool promote_whole_extents;
- struct bch2_time_stats times[BCH_TIME_STAT_NR];
+ struct time_stats times[BCH_TIME_STAT_NR];
struct btree_transaction_stats btree_transaction_stats[BCH_TRANSACTIONS_NR];
+
+ /* ERRORS */
+ struct list_head fsck_error_msgs;
+ struct mutex fsck_error_msgs_lock;
+ bool fsck_alloc_msgs_err;
+
+ bch_sb_errors_cpu fsck_error_counts;
+ struct mutex fsck_error_counts_lock;
};
extern struct wait_queue_head bch2_read_only_wait;
#endif
}
+static inline bool __bch2_write_ref_tryget(struct bch_fs *c, enum bch_write_ref ref)
+{
+#ifdef BCH_WRITE_REF_DEBUG
+ return !test_bit(BCH_FS_going_ro, &c->flags) &&
+ atomic_long_inc_not_zero(&c->writes[ref]);
+#else
+ return percpu_ref_tryget(&c->writes);
+#endif
+}
+
static inline bool bch2_write_ref_tryget(struct bch_fs *c, enum bch_write_ref ref)
{
#ifdef BCH_WRITE_REF_DEBUG
- return !test_bit(BCH_FS_GOING_RO, &c->flags) &&
+ return !test_bit(BCH_FS_going_ro, &c->flags) &&
atomic_long_inc_not_zero(&c->writes[ref]);
#else
return percpu_ref_tryget_live(&c->writes);
if (atomic_long_read(&c->writes[i]))
return;
- set_bit(BCH_FS_WRITE_DISABLE_COMPLETE, &c->flags);
+ set_bit(BCH_FS_write_disable_complete, &c->flags);
wake_up(&bch2_read_only_wait);
#else
percpu_ref_put(&c->writes);
#endif
}
+static inline bool bch2_ro_ref_tryget(struct bch_fs *c)
+{
+ if (test_bit(BCH_FS_stopping, &c->flags))
+ return false;
+
+ return refcount_inc_not_zero(&c->ro_ref);
+}
+
+static inline void bch2_ro_ref_put(struct bch_fs *c)
+{
+ if (refcount_dec_and_test(&c->ro_ref))
+ wake_up(&c->ro_ref_wait);
+}
+
static inline void bch2_set_ra_pages(struct bch_fs *c, unsigned ra_pages)
{
#ifndef NO_BCACHEFS_FS
return c->opts.block_size >> 9;
}
-static inline size_t btree_sectors(const struct bch_fs *c)
-{
- return c->opts.btree_node_size >> 9;
-}
-
static inline bool btree_id_cached(const struct bch_fs *c, enum btree_id btree)
{
return c->btree_key_cache_btrees & (1U << btree);
return dev < c->sb.nr_devices && c->devs[dev];
}
-static inline bool bch2_version_upgrading_to(const struct bch_fs *c, unsigned new_version)
+static inline struct stdio_redirect *bch2_fs_stdio_redirect(struct bch_fs *c)
+{
+ struct stdio_redirect *stdio = c->stdio;
+
+ if (c->stdio_filter && c->stdio_filter != current)
+ stdio = NULL;
+ return stdio;
+}
+
+static inline unsigned metadata_replicas_required(struct bch_fs *c)
+{
+ return min(c->opts.metadata_replicas,
+ c->opts.metadata_replicas_required);
+}
+
+static inline unsigned data_replicas_required(struct bch_fs *c)
{
- return c->sb.version_upgrade_complete < new_version &&
- c->sb.version >= new_version;
+ return min(c->opts.data_replicas,
+ c->opts.data_replicas_required);
}
#define BKEY_PADDED_ONSTACK(key, pad) \
projects / bcachefs-tools-debian / blobdiff