*/
#undef pr_fmt
+#ifdef __KERNEL__
#define pr_fmt(fmt) "bcachefs: %s() " fmt "\n", __func__
+#else
+#define pr_fmt(fmt) "%s() " fmt "\n", __func__
+#endif
#include <linux/backing-dev-defs.h>
#include <linux/bug.h>
#define bch2_fmt(_c, fmt) "bcachefs (%s): " fmt "\n", ((_c)->name)
#define bch2_fmt_inum(_c, _inum, fmt) "bcachefs (%s inum %llu): " fmt "\n", ((_c)->name), (_inum)
#else
-#define bch2_fmt(_c, fmt) "%s: " fmt "\n", ((_c)->name)
-#define bch2_fmt_inum(_c, _inum, fmt) "%s inum %llu: " fmt "\n", ((_c)->name), (_inum)
+#define bch2_fmt(_c, fmt) fmt "\n"
+#define bch2_fmt_inum(_c, _inum, fmt) "inum %llu: " fmt "\n", (_inum)
#endif
#define bch_info(c, fmt, ...) \
"significantly affect performance") \
BCH_DEBUG_PARAM(debug_check_iterators, \
"Enables extra verification for btree iterators") \
- BCH_DEBUG_PARAM(debug_check_bkeys, \
- "Run bkey_debugcheck (primarily checking GC/allocation "\
- "information) when iterating over keys") \
BCH_DEBUG_PARAM(debug_check_btree_accounting, \
"Verify btree accounting for keys within a node") \
BCH_DEBUG_PARAM(journal_seq_verify, \
#include "alloc_types.h"
#include "btree_types.h"
#include "buckets_types.h"
+#include "buckets_waiting_for_journal_types.h"
#include "clock_types.h"
#include "ec_types.h"
#include "journal_types.h"
GC_PHASE_BTREE_reflink,
GC_PHASE_BTREE_subvolumes,
GC_PHASE_BTREE_snapshots,
+ GC_PHASE_BTREE_lru,
+ GC_PHASE_BTREE_freespace,
+ GC_PHASE_BTREE_need_discard,
+ GC_PHASE_BTREE_backpointers,
GC_PHASE_PENDING_DELETE,
};
struct bch_sb_handle disk_sb;
struct bch_sb *sb_read_scratch;
int sb_write_error;
+ dev_t dev;
struct bch_devs_mask self;
* gc_lock, for device resize - holding any is sufficient for access:
* Or rcu_read_lock(), but only for ptr_stale():
*/
- struct bucket_array __rcu *buckets[2];
+ struct bucket_array __rcu *buckets_gc;
+ struct bucket_gens __rcu *bucket_gens;
+ u8 *oldest_gen;
unsigned long *buckets_nouse;
struct rw_semaphore bucket_lock;
struct bch_dev_usage __percpu *usage_gc;
/* Allocator: */
- struct task_struct __rcu *alloc_thread;
+ u64 new_fs_bucket_idx;
- /*
- * free: Buckets that are ready to be used
- *
- * free_inc: Incoming buckets - these are buckets that currently have
- * cached data in them, and we can't reuse them until after we write
- * their new gen to disk. After prio_write() finishes writing the new
- * gens/prios, they'll be moved to the free list (and possibly discarded
- * in the process)
- */
- alloc_fifo free[RESERVE_NR];
- alloc_fifo free_inc;
unsigned nr_open_buckets;
+ unsigned nr_btree_reserve;
open_bucket_idx_t open_buckets_partial[OPEN_BUCKETS_COUNT];
open_bucket_idx_t open_buckets_partial_nr;
- size_t fifo_last_bucket;
-
size_t inc_gen_needs_gc;
size_t inc_gen_really_needs_gc;
-
- enum allocator_states allocator_state;
-
- alloc_heap alloc_heap;
+ size_t buckets_waiting_on_journal;
atomic64_t rebalance_work;
enum {
/* startup: */
- BCH_FS_INITIALIZED,
- BCH_FS_ALLOC_READ_DONE,
BCH_FS_ALLOC_CLEAN,
- BCH_FS_ALLOCATOR_RUNNING,
- BCH_FS_ALLOCATOR_STOPPING,
BCH_FS_INITIAL_GC_DONE,
BCH_FS_INITIAL_GC_UNFIXED,
BCH_FS_TOPOLOGY_REPAIR_DONE,
- BCH_FS_BTREE_INTERIOR_REPLAY_DONE,
BCH_FS_FSCK_DONE,
BCH_FS_STARTED,
+ BCH_FS_MAY_GO_RW,
BCH_FS_RW,
BCH_FS_WAS_RW,
/* misc: */
BCH_FS_NEED_ANOTHER_GC,
BCH_FS_DELETED_NODES,
- BCH_FS_NEED_ALLOC_WRITE,
BCH_FS_REBUILD_REPLICAS,
- BCH_FS_HOLD_BTREE_WRITES,
};
struct btree_debug {
unsigned id;
- struct dentry *btree;
- struct dentry *btree_format;
- struct dentry *failed;
};
struct bch_fs_pcpu {
enum btree_id btree_id:8;
unsigned level:8;
bool allocated;
+ bool overwritten;
struct bkey_i *k;
u32 journal_seq;
u32 journal_offset;
} *d;
+ /*
+ * Gap buffer: instead of all the empty space in the array being at the
+ * end of the buffer - from @nr to @size - the empty space is at @gap.
+ * This means that sequential insertions are O(n) instead of O(n^2).
+ */
+ size_t gap;
size_t nr;
size_t size;
u64 journal_seq_base;
u16 version;
u16 version_min;
- u16 encoded_extent_max;
u8 nr_devices;
u8 clean;
struct mutex snapshot_table_lock;
struct work_struct snapshot_delete_work;
struct work_struct snapshot_wait_for_pagecache_and_delete_work;
- struct snapshot_id_list snapshots_unlinked;
+ snapshot_id_list snapshots_unlinked;
struct mutex snapshots_unlinked_lock;
/* BTREE CACHE */
bool btree_trans_barrier_initialized;
struct btree_key_cache btree_key_cache;
+ unsigned btree_key_cache_btrees;
struct workqueue_struct *btree_update_wq;
struct workqueue_struct *btree_io_complete_wq;
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;
struct closure_waitlist open_buckets_wait;
struct open_bucket open_buckets[OPEN_BUCKETS_COUNT];
+ open_bucket_idx_t open_buckets_hash[OPEN_BUCKETS_COUNT];
struct write_point btree_write_point;
struct write_point rebalance_write_point;
struct mutex write_points_hash_lock;
unsigned write_points_nr;
+ struct buckets_waiting_for_journal buckets_waiting_for_journal;
+ struct work_struct discard_work;
+ struct work_struct invalidate_work;
+
/* GARBAGE COLLECTION */
struct task_struct *gc_thread;
atomic_t kick_gc;
* it's not while a gc is in progress.
*/
struct rw_semaphore gc_lock;
+ struct mutex gc_gens_lock;
/* IO PATH */
struct semaphore io_in_flight;
u64 reflink_hint;
reflink_gc_table reflink_gc_table;
size_t reflink_gc_nr;
- size_t reflink_gc_idx;
/* VFS IO PATH - fs-io.c */
struct bio_set writepage_bioset;
struct bch_memquota_type quotas[QTYP_NR];
/* DEBUG JUNK */
- struct dentry *debug;
+ struct dentry *fs_debug_dir;
+ struct dentry *btree_debug_dir;
struct btree_debug btree_debug[BTREE_ID_NR];
struct btree *verify_data;
struct btree_node *verify_ondisk;
atomic_long_t read_realloc_races;
atomic_long_t extent_migrate_done;
atomic_long_t extent_migrate_raced;
+ atomic_long_t bucket_alloc_fail;
unsigned btree_gc_periodic:1;
unsigned copy_gc_enabled:1;
static inline unsigned block_bytes(const struct bch_fs *c)
{
- return c->opts.block_size << 9;
+ return c->opts.block_size;
+}
+
+static inline unsigned block_sectors(const struct bch_fs *c)
+{
+ 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);
}
-static inline struct timespec64 bch2_time_to_timespec(struct bch_fs *c, s64 time)
+static inline struct timespec64 bch2_time_to_timespec(const struct bch_fs *c, s64 time)
{
struct timespec64 t;
s32 rem;
return t;
}
-static inline s64 timespec_to_bch2_time(struct bch_fs *c, struct timespec64 ts)
+static inline s64 timespec_to_bch2_time(const struct bch_fs *c, struct timespec64 ts)
{
return (ts.tv_sec * c->sb.time_units_per_sec +
(int) ts.tv_nsec / c->sb.nsec_per_time_unit) - c->sb.time_base_lo;
}
-static inline s64 bch2_current_time(struct bch_fs *c)
+static inline s64 bch2_current_time(const struct bch_fs *c)
{
struct timespec64 now;
projects / bcachefs-tools-debian / blobdiff