diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/super.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 11044e9e2cb1..98fa0f382480 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2402,7 +2402,13 @@ static long btrfs_nr_cached_objects(struct super_block *sb, struct shrink_contro trace_btrfs_extent_map_shrinker_count(fs_info, nr); - return nr; + /* + * Only report the real number for DEBUG builds, as there are reports of + * serious performance degradation caused by too frequent shrinks. + */ + if (IS_ENABLED(CONFIG_BTRFS_DEBUG)) + return nr; + return 0; } static long btrfs_free_cached_objects(struct super_block *sb, struct shrink_control *sc) |