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authorKent Overstreet <kent.overstreet@linux.dev>2023-12-24 05:08:45 +0100
committerKent Overstreet <kent.overstreet@linux.dev>2024-01-06 05:24:19 +0100
commit83322e8ca8b687528765d7f4acf55ef3855004c4 (patch)
treec72bf8d2cde850eb4a2b5e15cc758ac9b5876b4d /fs/bcachefs
parentbcachefs: Split brain detection (diff)
downloadlinux-83322e8ca8b687528765d7f4acf55ef3855004c4.tar.xz
linux-83322e8ca8b687528765d7f4acf55ef3855004c4.zip
bcachefs: btree_trans always has stats
reserve slot 0 for unknown (when we overflow), to avoid some branches Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs')
-rw-r--r--fs/bcachefs/btree_iter.c14
-rw-r--r--fs/bcachefs/btree_locking.h9
-rw-r--r--fs/bcachefs/btree_update.c4
3 files changed, 8 insertions, 19 deletions
diff --git a/fs/bcachefs/btree_iter.c b/fs/bcachefs/btree_iter.c
index d9a9e84a2a28..fa29f00e9350 100644
--- a/fs/bcachefs/btree_iter.c
+++ b/fs/bcachefs/btree_iter.c
@@ -1476,9 +1476,6 @@ static void bch2_trans_update_max_paths(struct btree_trans *trans)
struct printbuf buf = PRINTBUF;
size_t nr = bitmap_weight(trans->paths_allocated, trans->nr_paths);
- if (!s)
- return;
-
bch2_trans_paths_to_text(&buf, trans);
if (!buf.allocation_failure) {
@@ -2781,8 +2778,7 @@ void *__bch2_trans_kmalloc(struct btree_trans *trans, size_t size)
WARN_ON_ONCE(new_bytes > BTREE_TRANS_MEM_MAX);
struct btree_transaction_stats *s = btree_trans_stats(trans);
- if (s)
- s->max_mem = max(s->max_mem, new_bytes);
+ s->max_mem = max(s->max_mem, new_bytes);
new_mem = krealloc(trans->mem, new_bytes, GFP_NOWAIT|__GFP_NOWARN);
if (unlikely(!new_mem)) {
@@ -2919,13 +2915,11 @@ u32 bch2_trans_begin(struct btree_trans *trans)
return trans->restart_count;
}
-const char *bch2_btree_transaction_fns[BCH_TRANSACTIONS_NR];
+const char *bch2_btree_transaction_fns[BCH_TRANSACTIONS_NR] = { "(unknown)" };
unsigned bch2_trans_get_fn_idx(const char *fn)
{
- unsigned i;
-
- for (i = 0; i < ARRAY_SIZE(bch2_btree_transaction_fns); i++)
+ for (unsigned i = 0; i < ARRAY_SIZE(bch2_btree_transaction_fns); i++)
if (!bch2_btree_transaction_fns[i] ||
bch2_btree_transaction_fns[i] == fn) {
bch2_btree_transaction_fns[i] = fn;
@@ -2933,7 +2927,7 @@ unsigned bch2_trans_get_fn_idx(const char *fn)
}
pr_warn_once("BCH_TRANSACTIONS_NR not big enough!");
- return i;
+ return 0;
}
struct btree_trans *__bch2_trans_get(struct bch_fs *c, unsigned fn_idx)
diff --git a/fs/bcachefs/btree_locking.h b/fs/bcachefs/btree_locking.h
index 64810ea544c9..cc5500a957a1 100644
--- a/fs/bcachefs/btree_locking.h
+++ b/fs/bcachefs/btree_locking.h
@@ -122,12 +122,9 @@ static void btree_trans_lock_hold_time_update(struct btree_trans *trans,
struct btree_path *path, unsigned level)
{
#ifdef CONFIG_BCACHEFS_LOCK_TIME_STATS
- struct btree_transaction_stats *s = btree_trans_stats(trans);
-
- if (s)
- __bch2_time_stats_update(&s->lock_hold_times,
- path->l[level].lock_taken_time,
- local_clock());
+ __bch2_time_stats_update(&btree_trans_stats(trans)->lock_hold_times,
+ path->l[level].lock_taken_time,
+ local_clock());
#endif
}
diff --git a/fs/bcachefs/btree_update.c b/fs/bcachefs/btree_update.c
index 83aa0fb8ba93..c3ff365acce9 100644
--- a/fs/bcachefs/btree_update.c
+++ b/fs/bcachefs/btree_update.c
@@ -557,9 +557,7 @@ struct jset_entry *__bch2_trans_jset_entry_alloc(struct btree_trans *trans, unsi
if (new_top > trans->journal_entries_size) {
trans->journal_entries_size = roundup_pow_of_two(new_top);
- struct btree_transaction_stats *s = btree_trans_stats(trans);
- if (s)
- s->journal_entries_size = trans->journal_entries_size;
+ btree_trans_stats(trans)->journal_entries_size = trans->journal_entries_size;
}
struct jset_entry *n =