f2fs: avoid retrying wrong recovery routine when error was occurred

This patch eliminates the propagation of recovery errors to the next mount.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 9fce0f47..e016b97 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -379,11 +379,8 @@
 	return blkdev_issue_discard(sbi->sb->s_bdev, start, len, GFP_NOFS, 0);
 }
 
-void discard_next_dnode(struct f2fs_sb_info *sbi)
+void discard_next_dnode(struct f2fs_sb_info *sbi, block_t blkaddr)
 {
-	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
-	block_t blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
-
 	if (f2fs_issue_discard(sbi, blkaddr, 1)) {
 		struct page *page = grab_meta_page(sbi, blkaddr);
 		/* zero-filled page */