Quoted from include/linux/shrinker.h
"count_objects should return the number of freeable items in the cache. If
there are no objects to free, it should return SHRINK_EMPTY, while 0 is
returned in cases of the number of freeable items cannot be determined
or shrinker should skip this cache for this time (e.g., their number
is below shrinkable limit)."
Signed-off-by: Zhiguo Niu <zhiguo....@unisoc.com>
---
fs/f2fs/shrinker.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 45efff6..9c8d3ae 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -73,7 +73,7 @@ unsigned long f2fs_shrink_count(struct shrinker *shrink,
mutex_unlock(&sbi->umount_mutex);
}
spin_unlock(&f2fs_list_lock);
- return count;
+ return count ?: SHRINK_EMPTY;
}
unsigned long f2fs_shrink_scan(struct shrinker *shrink,
--
1.9.1
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