!30 pagecache优化需求回合到LTS 3.0分支

Merge pull request !30 from LeonChan/pg3

source/ff.h

@@ -347,9 +347,19 @@ typedef struct {
 #endif
 } FILINFO;
 
+#ifndef __LITEOS_M__
+typedef struct {
+	DWORD	clst;
+	FSIZE_t	pos;
+} FAT_ENTRY;
+#endif
+
 typedef struct {
 	DIR	f_dir;
 	FILINFO	fno;
+#ifndef __LITEOS_M__
+	FAT_ENTRY	fat_entry;
+#endif
 } DIR_FILE;
 
 #define MAX(a, b, c)	(c = (a > b) ? a : b)