prev_en           502 fs/f2fs/extent_cache.c 	struct extent_node *prev_en = NULL, *next_en = NULL;
prev_en           534 fs/f2fs/extent_cache.c 					(struct rb_entry **)&prev_en,
prev_en           554 fs/f2fs/extent_cache.c 			prev_en = en;
prev_en           603 fs/f2fs/extent_cache.c 		if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))