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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-09-25 16:42:53 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:09:41 -0400 |
| commit | e9174370d0522b466ea770576230b487941101f8 (patch) | |
| tree | cc7806524495ea81cf7ffed5d7f9a0d97845f2de /fs | |
| parent | c36ff038fd3af6092e356cb4ed1c79a041b77b19 (diff) | |
| download | linux-stable-e9174370d0522b466ea770576230b487941101f8.tar.gz linux-stable-e9174370d0522b466ea770576230b487941101f8.tar.bz2 linux-stable-e9174370d0522b466ea770576230b487941101f8.zip | |
bcachefs: bch2_btree_node_relock_notrace()
Most of the node_relock_fail trace events are generated from
bch2_btree_path_verify_level(), when debugcheck_iterators is enabled -
but we're not interested in these trace events, they don't indicate that
we're in a slowpath.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bcachefs/btree_iter.c | 2 | ||||
| -rw-r--r-- | fs/bcachefs/btree_locking.c | 6 | ||||
| -rw-r--r-- | fs/bcachefs/btree_locking.h | 16 |
3 files changed, 19 insertions, 5 deletions
diff --git a/fs/bcachefs/btree_iter.c b/fs/bcachefs/btree_iter.c index 962010230c41..237e5c0afffa 100644 --- a/fs/bcachefs/btree_iter.c +++ b/fs/bcachefs/btree_iter.c @@ -167,7 +167,7 @@ static void bch2_btree_path_verify_level(struct btree_trans *trans, if (!btree_path_node(path, level)) return; - if (!bch2_btree_node_relock(trans, path, level)) + if (!bch2_btree_node_relock_notrace(trans, path, level)) return; BUG_ON(!btree_path_pos_in_node(path, l->b)); diff --git a/fs/bcachefs/btree_locking.c b/fs/bcachefs/btree_locking.c index 6793d7dd18d7..19062cea8774 100644 --- a/fs/bcachefs/btree_locking.c +++ b/fs/bcachefs/btree_locking.c @@ -401,7 +401,8 @@ static inline bool btree_path_get_locks(struct btree_trans *trans, } bool __bch2_btree_node_relock(struct btree_trans *trans, - struct btree_path *path, unsigned level) + struct btree_path *path, unsigned level, + bool trace) { struct btree *b = btree_path_node(path, level); int want = __btree_lock_want(path, level); @@ -416,7 +417,8 @@ bool __bch2_btree_node_relock(struct btree_trans *trans, return true; } fail: - trace_and_count(trans->c, btree_path_relock_fail, trans, _RET_IP_, path, level); + if (trace) + trace_and_count(trans->c, btree_path_relock_fail, trans, _RET_IP_, path, level); return false; } diff --git a/fs/bcachefs/btree_locking.h b/fs/bcachefs/btree_locking.h index 95089693a420..c74a5fd4d908 100644 --- a/fs/bcachefs/btree_locking.h +++ b/fs/bcachefs/btree_locking.h @@ -317,7 +317,7 @@ static inline int bch2_btree_path_relock(struct btree_trans *trans, : __bch2_btree_path_relock(trans, path, trace_ip); } -bool __bch2_btree_node_relock(struct btree_trans *, struct btree_path *, unsigned); +bool __bch2_btree_node_relock(struct btree_trans *, struct btree_path *, unsigned, bool trace); static inline bool bch2_btree_node_relock(struct btree_trans *trans, struct btree_path *path, unsigned level) @@ -328,7 +328,19 @@ static inline bool bch2_btree_node_relock(struct btree_trans *trans, return likely(btree_node_locked(path, level)) || (!IS_ERR_OR_NULL(path->l[level].b) && - __bch2_btree_node_relock(trans, path, level)); + __bch2_btree_node_relock(trans, path, level, true)); +} + +static inline bool bch2_btree_node_relock_notrace(struct btree_trans *trans, + struct btree_path *path, unsigned level) +{ + EBUG_ON(btree_node_locked(path, level) && + !btree_node_write_locked(path, level) && + btree_node_locked_type(path, level) != __btree_lock_want(path, level)); + + return likely(btree_node_locked(path, level)) || + (!IS_ERR_OR_NULL(path->l[level].b) && + __bch2_btree_node_relock(trans, path, level, false)); } /* upgrade */ |