nilfs2: get rid of GCDAT inode

This applies prepared rollback function and redirect function of
metadata file to DAT file, and eliminates GCDAT inode.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

1 files changed, 7 insertions, 7 deletions

diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 91dc0668ec83..b0c5e08d06c8 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1945,11 +1945,9 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
 
         nilfs_drop_collected_inodes(&sci->sc_dirty_files);
 
-        if (nilfs_doing_gc()) {
+        if (nilfs_doing_gc())
                 nilfs_drop_collected_inodes(&sci->sc_gc_inodes);
-                if (update_sr)
-                        nilfs_commit_gcdat_inode(nilfs);
-        } else
+        else
                 nilfs->ns_nongc_ctime = sci->sc_seg_ctime;
 
         sci->sc_nblk_inc += sci->sc_nblk_this_inc;
@@ -2472,13 +2470,15 @@ int nilfs_clean_segments(struct super_block *sb, struct nilfs_argv *argv,
 
         nilfs_transaction_lock(sbi, &ti, 1);
 
-        err = nilfs_init_gcdat_inode(nilfs);
+        err = nilfs_mdt_save_to_shadow_map(nilfs->ns_dat);
         if (unlikely(err))
                 goto out_unlock;
 
         err = nilfs_ioctl_prepare_clean_segments(nilfs, argv, kbufs);
-        if (unlikely(err))
+        if (unlikely(err)) {
+                nilfs_mdt_restore_from_shadow_map(nilfs->ns_dat);
                 goto out_unlock;
+        }
 
         sci->sc_freesegs = kbufs[4];
         sci->sc_nfreesegs = argv[4].v_nmembs;
@@ -2510,7 +2510,7 @@ int nilfs_clean_segments(struct super_block *sb, struct nilfs_argv *argv,
  out_unlock:
         sci->sc_freesegs = NULL;
         sci->sc_nfreesegs = 0;
-        nilfs_clear_gcdat_inode(nilfs);
+        nilfs_mdt_clear_shadow_map(nilfs->ns_dat);
         nilfs_transaction_unlock(sbi);
         return err;
 }