f2fs: Don't overwrite all types of node to keep node chain

Currently, we enable node SSR by default, and mixed
different types of node segment to do SSR more intensively.
Although reuse warm node is not allowed, warm node chain
will be destroyed by errors introduced by other types
node chain. So we'd better forbid reusing all types
of node to keep warm node chain.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index f61c77bd673c54c3b42bdd3002008a8c498e78ff..570e02d89cbcbd978bdeb3785c2f8219e02bf89f 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1862,7 +1862,7 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
                        sbi->discard_blks--;
 
                /* don't overwrite by SSR to keep node chain */
-               if (se->type == CURSEG_WARM_NODE) {
+               if (IS_NODESEG(se->type)) {
                        if (!f2fs_test_and_set_bit(offset, se->ckpt_valid_map))
                                se->ckpt_valid_blocks++;
                }