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authorKent Overstreet <kent.overstreet@linux.dev>2024-06-06 20:01:34 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2024-06-10 13:17:16 -0400
commit2760bfe38826f65b1806f1cc62744404b5917dea (patch)
treea674dde0d7c4149127fd4a66a1f79bd5cf9d35bb /fs
parent9ac3e660cac3e29cfc817b6a23735b70f12bd16a (diff)
bcachefs: Fix reporting of freed objects from key cache shrinker
We count objects as freed when we move them to the srcu-pending lists because we're doing the equivalent of a kfree_srcu(); the only difference is managing the pending list ourself means we can allocate from the pending list. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs')
-rw-r--r--fs/bcachefs/btree_key_cache.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/bcachefs/btree_key_cache.c b/fs/bcachefs/btree_key_cache.c
index eaf012ddca08..2ad3d27c91e6 100644
--- a/fs/bcachefs/btree_key_cache.c
+++ b/fs/bcachefs/btree_key_cache.c
@@ -841,7 +841,6 @@ static unsigned long bch2_btree_key_cache_scan(struct shrinker *shrink,
six_lock_exit(&ck->c.lock);
kmem_cache_free(bch2_key_cache, ck);
atomic_long_dec(&bc->nr_freed);
- freed++;
bc->nr_freed_nonpcpu--;
bc->freed++;
}
@@ -855,7 +854,6 @@ static unsigned long bch2_btree_key_cache_scan(struct shrinker *shrink,
six_lock_exit(&ck->c.lock);
kmem_cache_free(bch2_key_cache, ck);
atomic_long_dec(&bc->nr_freed);
- freed++;
bc->nr_freed_pcpu--;
bc->freed++;
}
@@ -877,23 +875,22 @@ static unsigned long bch2_btree_key_cache_scan(struct shrinker *shrink,
if (test_bit(BKEY_CACHED_DIRTY, &ck->flags)) {
bc->skipped_dirty++;
- goto next;
} else if (test_bit(BKEY_CACHED_ACCESSED, &ck->flags)) {
clear_bit(BKEY_CACHED_ACCESSED, &ck->flags);
bc->skipped_accessed++;
- goto next;
- } else if (bkey_cached_lock_for_evict(ck)) {
+ } else if (!bkey_cached_lock_for_evict(ck)) {
+ bc->skipped_lock_fail++;
+ } else {
bkey_cached_evict(bc, ck);
bkey_cached_free(bc, ck);
bc->moved_to_freelist++;
- } else {
- bc->skipped_lock_fail++;
+ freed++;
}
scanned++;
if (scanned >= nr)
break;
-next:
+
pos = next;
}