X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Ff2fs%2Ff2fs.h;h=06ff6a51c7004c52b8066b1d6cc0ac8fbd2f4d24;hb=064e0823285a41f5ccb92f26a661df5f44cac3eb;hp=cc2213afdcc74a99ef460f0bf8bf9b48e3d3645b;hpb=6d62768468d5ff96b3977a04045dd80d6710be5d;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index cc2213a..06ff6a5 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -125,11 +125,15 @@ static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i)
 					 * file keeping -1 as its node offset to
 					 * distinguish from index node blocks.
 					 */
-#define RDONLY_NODE		1	/*
-					 * specify a read-only mode when getting
-					 * a node block. 0 is read-write mode.
-					 * used by get_dnode_of_data().
+enum {
+	ALLOC_NODE,			/* allocate a new node page if needed */
+	LOOKUP_NODE,			/* look up a node without readahead */
+	LOOKUP_NODE_RA,			/*
+					 * look up a node with readahead called
+					 * by get_datablock_ro.
 					 */
+};
+
 #define F2FS_LINK_MAX		32000	/* maximum link count per file */
 
 /* for in-memory extent cache entry */
@@ -511,9 +515,12 @@ static inline void mutex_unlock_op(struct f2fs_sb_info *sbi, enum lock_type t)
 /*
  * Check whether the given nid is within node id range.
  */
-static inline void check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
+static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
 {
-	BUG_ON((nid >= NM_I(sbi)->max_nid));
+	WARN_ON((nid >= NM_I(sbi)->max_nid));
+	if (nid >= NM_I(sbi)->max_nid)
+		return -EINVAL;
+	return 0;
 }
 
 #define F2FS_DEFAULT_ALLOCATED_BLOCKS	1