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-rw-r--r--fs/bcachefs/btree_trans_commit.c5
-rw-r--r--fs/bcachefs/btree_write_buffer.c3
-rw-r--r--fs/bcachefs/errcode.h5
-rw-r--r--fs/bcachefs/trace.h100
4 files changed, 9 insertions, 104 deletions
diff --git a/fs/bcachefs/btree_trans_commit.c b/fs/bcachefs/btree_trans_commit.c
index 61107f2310ab..639ef75b3dbd 100644
--- a/fs/bcachefs/btree_trans_commit.c
+++ b/fs/bcachefs/btree_trans_commit.c
@@ -595,12 +595,13 @@ bch2_trans_commit_write_locked(struct btree_trans *trans, unsigned flags,
int ret = 0;
bch2_trans_verify_not_unlocked_or_in_restart(trans);
-
+#if 0
+ /* todo: bring back dynamic fault injection */
if (race_fault()) {
trace_and_count(c, trans_restart_fault_inject, trans, trace_ip);
return btree_trans_restart(trans, BCH_ERR_transaction_restart_fault_inject);
}
-
+#endif
/*
* Check if the insert will fit in the leaf node with the write lock
* held, otherwise another thread could write the node changing the
diff --git a/fs/bcachefs/btree_write_buffer.c b/fs/bcachefs/btree_write_buffer.c
index 90b21e61d2b6..21b5c03d1822 100644
--- a/fs/bcachefs/btree_write_buffer.c
+++ b/fs/bcachefs/btree_write_buffer.c
@@ -676,6 +676,9 @@ int bch2_btree_write_buffer_maybe_flush(struct btree_trans *trans,
goto err;
bch2_bkey_buf_copy(last_flushed, c, tmp.k);
+
+ /* can we avoid the unconditional restart? */
+ trace_and_count(c, trans_restart_write_buffer_flush, trans, _RET_IP_);
ret = bch_err_throw(c, transaction_restart_write_buffer_flush);
}
err:
diff --git a/fs/bcachefs/errcode.h b/fs/bcachefs/errcode.h
index ac3264134a15..86a842f1e88e 100644
--- a/fs/bcachefs/errcode.h
+++ b/fs/bcachefs/errcode.h
@@ -137,7 +137,6 @@
x(BCH_ERR_transaction_restart, transaction_restart_relock) \
x(BCH_ERR_transaction_restart, transaction_restart_relock_path) \
x(BCH_ERR_transaction_restart, transaction_restart_relock_path_intent) \
- x(BCH_ERR_transaction_restart, transaction_restart_relock_after_fill) \
x(BCH_ERR_transaction_restart, transaction_restart_too_many_iters) \
x(BCH_ERR_transaction_restart, transaction_restart_lock_node_reused) \
x(BCH_ERR_transaction_restart, transaction_restart_fill_relock) \
@@ -148,11 +147,8 @@
x(BCH_ERR_transaction_restart, transaction_restart_would_deadlock_write)\
x(BCH_ERR_transaction_restart, transaction_restart_deadlock_recursion_limit)\
x(BCH_ERR_transaction_restart, transaction_restart_upgrade) \
- x(BCH_ERR_transaction_restart, transaction_restart_key_cache_upgrade) \
x(BCH_ERR_transaction_restart, transaction_restart_key_cache_fill) \
x(BCH_ERR_transaction_restart, transaction_restart_key_cache_raced) \
- x(BCH_ERR_transaction_restart, transaction_restart_key_cache_realloced)\
- x(BCH_ERR_transaction_restart, transaction_restart_journal_preres_get) \
x(BCH_ERR_transaction_restart, transaction_restart_split_race) \
x(BCH_ERR_transaction_restart, transaction_restart_write_buffer_flush) \
x(BCH_ERR_transaction_restart, transaction_restart_nested) \
@@ -241,7 +237,6 @@
x(BCH_ERR_journal_res_blocked, journal_buf_enomem) \
x(BCH_ERR_journal_res_blocked, journal_stuck) \
x(BCH_ERR_journal_res_blocked, journal_retry_open) \
- x(BCH_ERR_journal_res_blocked, journal_preres_get_blocked) \
x(BCH_ERR_journal_res_blocked, bucket_alloc_blocked) \
x(BCH_ERR_journal_res_blocked, stripe_alloc_blocked) \
x(BCH_ERR_invalid, invalid_sb) \
diff --git a/fs/bcachefs/trace.h b/fs/bcachefs/trace.h
index e759c9ff3965..9c5a9c551f03 100644
--- a/fs/bcachefs/trace.h
+++ b/fs/bcachefs/trace.h
@@ -1080,34 +1080,14 @@ TRACE_EVENT(trans_blocked_journal_reclaim,
__entry->must_wait)
);
-TRACE_EVENT(trans_restart_journal_preres_get,
- TP_PROTO(struct btree_trans *trans,
- unsigned long caller_ip,
- unsigned flags),
- TP_ARGS(trans, caller_ip, flags),
-
- TP_STRUCT__entry(
- __array(char, trans_fn, 32 )
- __field(unsigned long, caller_ip )
- __field(unsigned, flags )
- ),
-
- TP_fast_assign(
- strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
- __entry->caller_ip = caller_ip;
- __entry->flags = flags;
- ),
-
- TP_printk("%s %pS %x", __entry->trans_fn,
- (void *) __entry->caller_ip,
- __entry->flags)
-);
-
+#if 0
+/* todo: bring back dynamic fault injection */
DEFINE_EVENT(transaction_event, trans_restart_fault_inject,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
TP_ARGS(trans, caller_ip)
);
+#endif
DEFINE_EVENT(transaction_event, trans_traverse_all,
TP_PROTO(struct btree_trans *trans,
@@ -1195,19 +1175,6 @@ DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_parent_for_fill,
TP_ARGS(trans, caller_ip, path)
);
-DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_after_fill,
- TP_PROTO(struct btree_trans *trans,
- unsigned long caller_ip,
- struct btree_path *path),
- TP_ARGS(trans, caller_ip, path)
-);
-
-DEFINE_EVENT(transaction_event, trans_restart_key_cache_upgrade,
- TP_PROTO(struct btree_trans *trans,
- unsigned long caller_ip),
- TP_ARGS(trans, caller_ip)
-);
-
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_key_cache_fill,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip,
@@ -1229,13 +1196,6 @@ DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_path_intent,
TP_ARGS(trans, caller_ip, path)
);
-DEFINE_EVENT(transaction_restart_iter, trans_restart_traverse,
- TP_PROTO(struct btree_trans *trans,
- unsigned long caller_ip,
- struct btree_path *path),
- TP_ARGS(trans, caller_ip, path)
-);
-
DEFINE_EVENT(transaction_restart_iter, trans_restart_memory_allocation_failure,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip,
@@ -1294,44 +1254,6 @@ TRACE_EVENT(trans_restart_mem_realloced,
__entry->bytes)
);
-TRACE_EVENT(trans_restart_key_cache_key_realloced,
- TP_PROTO(struct btree_trans *trans,
- unsigned long caller_ip,
- struct btree_path *path,
- unsigned old_u64s,
- unsigned new_u64s),
- TP_ARGS(trans, caller_ip, path, old_u64s, new_u64s),
-
- TP_STRUCT__entry(
- __array(char, trans_fn, 32 )
- __field(unsigned long, caller_ip )
- __field(enum btree_id, btree_id )
- TRACE_BPOS_entries(pos)
- __field(u32, old_u64s )
- __field(u32, new_u64s )
- ),
-
- TP_fast_assign(
- strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
- __entry->caller_ip = caller_ip;
-
- __entry->btree_id = path->btree_id;
- TRACE_BPOS_assign(pos, path->pos);
- __entry->old_u64s = old_u64s;
- __entry->new_u64s = new_u64s;
- ),
-
- TP_printk("%s %pS btree %s pos %llu:%llu:%u old_u64s %u new_u64s %u",
- __entry->trans_fn,
- (void *) __entry->caller_ip,
- bch2_btree_id_str(__entry->btree_id),
- __entry->pos_inode,
- __entry->pos_offset,
- __entry->pos_snapshot,
- __entry->old_u64s,
- __entry->new_u64s)
-);
-
DEFINE_EVENT(transaction_event, trans_restart_write_buffer_flush,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
@@ -1927,21 +1849,6 @@ TRACE_EVENT(btree_path_free,
__entry->dup_locked)
);
-TRACE_EVENT(btree_path_free_trans_begin,
- TP_PROTO(btree_path_idx_t path),
- TP_ARGS(path),
-
- TP_STRUCT__entry(
- __field(btree_path_idx_t, idx )
- ),
-
- TP_fast_assign(
- __entry->idx = path;
- ),
-
- TP_printk(" path %3u", __entry->idx)
-);
-
#else /* CONFIG_BCACHEFS_PATH_TRACEPOINTS */
#ifndef _TRACE_BCACHEFS_H
@@ -1959,7 +1866,6 @@ static inline void trace_btree_path_traverse_start(struct btree_trans *trans, st
static inline void trace_btree_path_traverse_end(struct btree_trans *trans, struct btree_path *path) {}
static inline void trace_btree_path_set_pos(struct btree_trans *trans, struct btree_path *path, struct bpos *new_pos) {}
static inline void trace_btree_path_free(struct btree_trans *trans, btree_path_idx_t path, struct btree_path *dup) {}
-static inline void trace_btree_path_free_trans_begin(btree_path_idx_t path) {}
#endif
#endif /* CONFIG_BCACHEFS_PATH_TRACEPOINTS */