yaffs: Add xattrib support

[yaffs2.git] / yaffs_guts.h

diff --git a/yaffs_guts.h b/yaffs_guts.h
index 2791d685878bed9c7033e3d4fe276fd1e93be24d..84b53aacf05403fd2c9a927cbdf0b13b10fa8e13 100644 (file)
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
  *
 /*
  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
  *

- * Copyright (C) 2002-2007 Aleph One Ltd.
+ * Copyright (C) 2002-2010 Aleph One Ltd.

  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>


@@ -564,6 +564,8 @@ struct yaffs_DeviceParamStruct {
        __u8 skipCheckpointRead;
        __u8 skipCheckpointWrite;
 
        __u8 skipCheckpointRead;
        __u8 skipCheckpointWrite;
 

+       int enableXattr;        /* Enable xattribs */
+

        /* NAND access functions (Must be set before calling YAFFS)*/
 
        int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,
        /* NAND access functions (Must be set before calling YAFFS)*/
 
        int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,


@@ -598,11 +600,15 @@ struct yaffs_DeviceParamStruct {
 
        /* Callback to mark the superblock dirty */
        void (*markSuperBlockDirty)(struct yaffs_DeviceStruct *dev);
 
        /* Callback to mark the superblock dirty */
        void (*markSuperBlockDirty)(struct yaffs_DeviceStruct *dev);

+       
+       /*  Callback to control garbage collection. */
+       unsigned (*gcControl)(struct yaffs_DeviceStruct *dev);

 
         /* Debug control flags. Don't use unless you know what you're doing */
        int useHeaderFileSize;  /* Flag to determine if we should use file sizes from the header */
        int disableLazyLoad;    /* Disable lazy loading on this device */
        int wideTnodesDisabled; /* Set to disable wide tnodes */
 
         /* Debug control flags. Don't use unless you know what you're doing */
        int useHeaderFileSize;  /* Flag to determine if we should use file sizes from the header */
        int disableLazyLoad;    /* Disable lazy loading on this device */
        int wideTnodesDisabled; /* Set to disable wide tnodes */

+       int disableSoftDelete;  /* yaffs 1 only: Set to disable the use of softdeletion. */

        
        int deferDirectoryUpdate; /* Set to defer directory updates */
        
        
        int deferDirectoryUpdate; /* Set to defer directory updates */
        


@@ -685,10 +691,6 @@ struct yaffs_DeviceStruct {
        int nFreeTnodes;
        yaffs_TnodeList *allocatedTnodeList;
 
        int nFreeTnodes;
        yaffs_TnodeList *allocatedTnodeList;
 

-       int isDoingGC;
-       int gcBlock;
-       int gcChunk;
-

        int nObjectsCreated;
        yaffs_Object *freeObjects;
        int nFreeObjects;
        int nObjectsCreated;
        yaffs_Object *freeObjects;
        int nFreeObjects;


@@ -702,12 +704,18 @@ struct yaffs_DeviceStruct {
 
        int nFreeChunks;
 
 
        int nFreeChunks;
 

-       int currentDirtyChecker;        /* Used to find current dirtiest block */
-
+       /* Garbage collection control */

        __u32 *gcCleanupList;   /* objects to delete at the end of a GC. */
        __u32 *gcCleanupList;   /* objects to delete at the end of a GC. */

-       int nonAggressiveSkip;  /* GC state/mode */

 
 

-       int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */
+       unsigned hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */
+       unsigned gcDisable;
+       unsigned gcBlockFinder;
+       unsigned gcDirtiest;
+       unsigned gcPagesInUse;
+       unsigned gcNotDone;
+       unsigned gcBlock;
+       unsigned gcChunk;
+       unsigned gcSkip;

 
        /* Special directories */
        yaffs_Object *rootDir;
 
        /* Special directories */
        yaffs_Object *rootDir;


@@ -742,6 +750,7 @@ struct yaffs_DeviceStruct {
        /* yaffs2 runtime stuff */
        unsigned sequenceNumber;        /* Sequence number of currently allocating block */
        unsigned oldestDirtySequence;
        /* yaffs2 runtime stuff */
        unsigned sequenceNumber;        /* Sequence number of currently allocating block */
        unsigned oldestDirtySequence;

+       unsigned oldestDirtyBlock;

 
        /* Block refreshing */
        int refreshSkip;        /* A skip down counter. Refresh happens when this gets to zero. */
 
        /* Block refreshing */
        int refreshSkip;        /* A skip down counter. Refresh happens when this gets to zero. */


@@ -756,8 +765,10 @@ struct yaffs_DeviceStruct {
        __u32 nBlockErasures;
        __u32 nErasureFailures;
        __u32 nGCCopies;
        __u32 nBlockErasures;
        __u32 nErasureFailures;
        __u32 nGCCopies;

-       __u32 garbageCollections;
-       __u32 passiveGarbageCollections;
+       __u32 allGCs;
+       __u32 passiveGCs;
+       __u32 oldestDirtyGCs;
+       __u32 backgroundGCs;

        __u32 nRetriedWrites;
        __u32 nRetiredBlocks;
        __u32 eccFixed;
        __u32 nRetriedWrites;
        __u32 nRetiredBlocks;
        __u32 eccFixed;


@@ -877,6 +888,12 @@ YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj);
 yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
                                 __u32 mode, __u32 uid, __u32 gid, __u32 rdev);
 
 yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
                                 __u32 mode, __u32 uid, __u32 gid, __u32 rdev);
 

+
+int yaffs_SetXAttribute(yaffs_Object *obj, const char *name, const void * value, int size, int flags);
+int yaffs_GetXAttribute(yaffs_Object *obj, const char *name, void *value, int size);
+int yaffs_ListXAttributes(yaffs_Object *obj, char *buffer, int size);
+int yaffs_RemoveXAttribute(yaffs_Object *obj, const char *name);
+

 /* Special directories */
 yaffs_Object *yaffs_Root(yaffs_Device *dev);
 yaffs_Object *yaffs_LostNFound(yaffs_Device *dev);
 /* Special directories */
 yaffs_Object *yaffs_Root(yaffs_Device *dev);
 yaffs_Object *yaffs_LostNFound(yaffs_Device *dev);


@@ -888,9 +905,9 @@ void yfsd_WinFileTimeNow(__u32 target[2]);
 
 void yaffs_HandleDeferedFree(yaffs_Object *obj);
 
 
 void yaffs_HandleDeferedFree(yaffs_Object *obj);
 

-

 void yaffs_UpdateDirtyDirectories(yaffs_Device *dev);
 
 void yaffs_UpdateDirtyDirectories(yaffs_Device *dev);
 

+int yaffs_BackgroundGarbageCollect(yaffs_Device *dev, unsigned urgency);

 
 /* Debug dump  */
 int yaffs_DumpObject(yaffs_Object *obj);
 
 /* Debug dump  */
 int yaffs_DumpObject(yaffs_Object *obj);