f2fs: add a slab cache entry for small discards

This patch adds a slab cache entry for small discards.

Each entry consists of:

struct discard_entry {
	struct list_head list;	/* list head */
	block_t blkaddr;	/* block address to be discarded */
	int len;		/* # of consecutive blocks of the discard */
};

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index bafff72de8e8..e9aa3f79f425 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1078,9 +1078,12 @@ static int __init init_f2fs_fs(void)
         err = create_node_manager_caches();
         if (err)
                 goto free_inodecache;
-        err = create_gc_caches();
+        err = create_segment_manager_caches();
         if (err)
                 goto free_node_manager_caches;
+        err = create_gc_caches();
+        if (err)
+                goto free_segment_manager_caches;
         err = create_checkpoint_caches();
         if (err)
                 goto free_gc_caches;
@@ -1102,6 +1105,8 @@ free_checkpoint_caches:
         destroy_checkpoint_caches();
 free_gc_caches:
         destroy_gc_caches();
+free_segment_manager_caches:
+        destroy_segment_manager_caches();
 free_node_manager_caches:
         destroy_node_manager_caches();
 free_inodecache: