* 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 */
/*
* 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