+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BTREE_TYPES_H
#define _BCACHEFS_BTREE_TYPES_H
#include <linux/six.h>
#include "bkey_methods.h"
+#include "buckets_types.h"
#include "journal_types.h"
struct open_bucket;
struct btree_update;
+struct btree_trans;
#define MAX_BSETS 3U
struct btree_nr_keys nr;
u16 sib_u64s[2];
u16 whiteout_u64s;
- u16 uncompacted_whiteout_u64s;
u8 page_order;
u8 unpack_fn_len;
enum btree_iter_type {
BTREE_ITER_KEYS,
- BTREE_ITER_SLOTS,
BTREE_ITER_NODES,
};
#define BTREE_ITER_TYPE ((1 << 2) - 1)
-#define BTREE_ITER_INTENT (1 << 2)
-#define BTREE_ITER_PREFETCH (1 << 3)
+#define BTREE_ITER_SLOTS (1 << 2)
+#define BTREE_ITER_INTENT (1 << 3)
+#define BTREE_ITER_PREFETCH (1 << 4)
+#define BTREE_ITER_KEEP_UNTIL_COMMIT (1 << 5)
/*
* Used in bch2_btree_iter_traverse(), to indicate whether we're searching for
* @pos or the first key strictly greater than @pos
*/
-#define BTREE_ITER_IS_EXTENTS (1 << 4)
-#define BTREE_ITER_ERROR (1 << 5)
-#define BTREE_ITER_NOUNLOCK (1 << 6)
+#define BTREE_ITER_IS_EXTENTS (1 << 6)
+#define BTREE_ITER_ERROR (1 << 7)
enum btree_iter_uptodate {
BTREE_ITER_UPTODATE = 0,
* @nodes_intent_locked - bitmask indicating which locks are intent locks
*/
struct btree_iter {
- struct bch_fs *c;
+ u8 idx;
+
+ struct btree_trans *trans;
struct bpos pos;
u8 flags;
* bch2_btree_iter_next_slot() can correctly advance pos.
*/
struct bkey k;
-
- /*
- * Circular linked list of linked iterators: linked iterators share
- * locks (e.g. two linked iterators may have the same node intent
- * locked, or read and write locked, at the same time), and insertions
- * through one iterator won't invalidate the other linked iterators.
- */
-
- /* Must come last: */
- struct btree_iter *next;
};
-#define BTREE_ITER_MAX 8
-
-struct deferred_update {
- struct journal_entry_pin journal;
-
- spinlock_t lock;
- unsigned gen;
-
- u8 allocated_u64s;
- enum btree_id btree_id;
-
- /* must be last: */
- struct bkey_i k;
-};
+static inline enum btree_iter_type btree_iter_type(struct btree_iter *iter)
+{
+ return iter->flags & BTREE_ITER_TYPE;
+}
struct btree_insert_entry {
struct bkey_i *k;
-
- union {
struct btree_iter *iter;
- struct deferred_update *d;
- };
-
- bool deferred;
};
+#define BTREE_ITER_MAX 64
+
struct btree_trans {
struct bch_fs *c;
- size_t nr_restarts;
+ unsigned long ip;
+
+ u64 iters_linked;
+ u64 iters_live;
+ u64 iters_touched;
u8 nr_iters;
- u8 iters_live;
- u8 iters_linked;
u8 nr_updates;
+ u8 size;
+ unsigned used_mempool:1;
+ unsigned error:1;
+ unsigned nounlock:1;
unsigned mem_top;
unsigned mem_bytes;
void *mem;
struct btree_iter *iters;
- u64 iter_ids[BTREE_ITER_MAX];
-
- struct btree_insert_entry updates[BTREE_ITER_MAX];
+ struct btree_insert_entry *updates;
+ u8 *updates_sorted;
+
+ /* update path: */
+ struct journal_res journal_res;
+ struct journal_preres journal_preres;
+ u64 *journal_seq;
+ struct disk_reservation *disk_res;
+ unsigned flags;
+ unsigned journal_u64s;
+ unsigned journal_preres_u64s;
+ struct replicas_delta_list *fs_usage_deltas;
struct btree_iter iters_onstack[2];
+ struct btree_insert_entry updates_onstack[6];
+ u8 updates_sorted_onstack[6];
};
#define BTREE_FLAG(flag) \
__btree_node_offset_to_key(_b, (_t)->end_offset); \
})
+static inline unsigned bset_u64s(struct bset_tree *t)
+{
+ return t->end_offset - t->data_offset -
+ sizeof(struct bset) / sizeof(u64);
+}
+
+static inline unsigned bset_dead_u64s(struct btree *b, struct bset_tree *t)
+{
+ return bset_u64s(t) - b->nr.bset_u64s[t - b->set];
+}
+
static inline unsigned bset_byte_offset(struct btree *b, void *i)
{
return i - (void *) b->data;
static inline bool btree_node_type_is_extents(enum btree_node_type type)
{
- return type == BKEY_TYPE_EXTENTS;
+ switch (type) {
+ case BKEY_TYPE_EXTENTS:
+ case BKEY_TYPE_REFLINK:
+ return true;
+ default:
+ return false;
+ }
}
static inline bool btree_node_is_extents(struct btree *b)
return btree_node_type_is_extents(btree_node_type(b));
}
+#define BTREE_NODE_TYPE_HAS_TRIGGERS \
+ ((1U << BKEY_TYPE_EXTENTS)| \
+ (1U << BKEY_TYPE_ALLOC)| \
+ (1U << BKEY_TYPE_INODES)| \
+ (1U << BKEY_TYPE_REFLINK)| \
+ (1U << BKEY_TYPE_EC)| \
+ (1U << BKEY_TYPE_BTREE))
+
+#define BTREE_NODE_TYPE_HAS_TRANS_TRIGGERS \
+ ((1U << BKEY_TYPE_EXTENTS)| \
+ (1U << BKEY_TYPE_INODES)| \
+ (1U << BKEY_TYPE_REFLINK))
+
static inline bool btree_node_type_needs_gc(enum btree_node_type type)
{
- switch (type) {
- case BKEY_TYPE_BTREE:
- case BKEY_TYPE_EXTENTS:
- case BKEY_TYPE_INODES:
- case BKEY_TYPE_EC:
- return true;
- default:
- return false;
- }
+ return BTREE_NODE_TYPE_HAS_TRIGGERS & (1U << type);
}
struct btree_root {
__BKEY_PADDED(key, BKEY_BTREE_PTR_VAL_U64s_MAX);
u8 level;
u8 alive;
+ s8 error;
};
/*
enum btree_insert_ret {
BTREE_INSERT_OK,
- /* extent spanned multiple leaf nodes: have to traverse to next node: */
- BTREE_INSERT_NEED_TRAVERSE,
/* leaf node needs to be split */
BTREE_INSERT_BTREE_NODE_FULL,
BTREE_INSERT_ENOSPC,
- BTREE_INSERT_NEED_GC_LOCK,
BTREE_INSERT_NEED_MARK_REPLICAS,
+ BTREE_INSERT_NEED_JOURNAL_RES,
};
enum btree_gc_coalesce_fail_reason {
projects / bcachefs-tools-debian / blobdiff