*** empty log message ***

[yaffs/.git] / yaffs_guts.h

diff --git a/yaffs_guts.h b/yaffs_guts.h
index d1e29730fa26a27d32313d3ff8d3ee8573502ee1..3ae36e7214d16dc622d16b52678546925e63e460 100644 (file)
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -93,7 +93,9 @@ typedef struct
     __u8  tagByte1;
     __u8  tagByte2;
     __u8  tagByte3;
-    __u8  pageStatus;
+    __u8  pageStatus; // Currently unused, but sort of set aside to distinguish
+                                 // unused - vs- used -vs- deleted chunks. We achieve this by
+                                         // using the objectId tags.
     __u8  blockStatus;
     __u8  tagByte4;
     __u8  tagByte5;
@@ -106,7 +108,9 @@ typedef struct
 // Block data in RAM
 
 typedef enum {
-       YAFFS_BLOCK_STATE_UNKNOWN       = 0,
+       YAFFS_BLOCK_STATE_UddNKNOWN     = 0,
+       YAFFS_BLOCK_STATE_SCANNING,             // Used while the block is being scanned.
+                                                                       // NB Don't erase blocks while they're being scanned
        
        YAFFS_BLOCK_STATE_EMPTY,                // This block is empty
        
@@ -318,7 +322,12 @@ struct yaffs_DeviceStruct
        
        void *genericDevice; // Pointer to device context
                                                 // On an mtd this holds the mtd pointer.
+       
+#ifdef __KERNEL__
+
        struct semaphore sem;// Semaphore for waiting on erasure.
+
+#endif
        
        
        // NAND access functions (Must be set before calling YAFFS)
@@ -327,9 +336,11 @@ struct yaffs_DeviceStruct
        int (*readChunkFromNAND)(struct yaffs_DeviceStruct *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare);
        int (*eraseBlockInNAND)(struct yaffs_DeviceStruct *dev,int blockInNAND);        
        int (*initialiseNAND)(struct yaffs_DeviceStruct *dev);
-       
 
-       
+#ifdef __KERNEL__
+       void (*putSuperFunc)(struct super_block *sb);
+#endif
+
        // Runtime parameters.
        yaffs_BlockInfo *blockInfo;
        int   nErasedBlocks;
@@ -411,6 +422,8 @@ yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev,int number);
 // Link operations
 yaffs_Object *yaffs_Link(yaffs_Object *parent, const char *name, yaffs_Object *equivalentObject);
 
+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj);
+
 // Symlink operations
 yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const char *name, __u32 mode,  __u32 uid, __u32 gid, const char *alias);
 char *yaffs_GetSymlinkAlias(yaffs_Object *obj);