X-Git-Url: https://yaffs.net/gitweb/?a=blobdiff_plain;f=yaffs_guts.h;h=84b53aacf05403fd2c9a927cbdf0b13b10fa8e13;hb=1c8401d1235c9771c4086aa75e31c56c5cac121c;hp=53ab280aa67173d3dec74dba29b42805b34c77ca;hpb=30ab3ff5e311e8e2b488c3f62f30e7450dc6bee9;p=yaffs2.git

diff --git a/yaffs_guts.h b/yaffs_guts.h
index 53ab280..84b53aa 100644
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -1,7 +1,7 @@
 /*
  * 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>
@@ -63,7 +63,7 @@
 
 #define YAFFS_OBJECT_SPACE		0x40000
 
-#define YAFFS_CHECKPOINT_VERSION 	3
+#define YAFFS_CHECKPOINT_VERSION 	4
 
 #ifdef CONFIG_YAFFS_UNICODE
 #define YAFFS_MAX_NAME_LENGTH		127
@@ -386,6 +386,7 @@ typedef struct {
 
 typedef struct {
 	struct ylist_head children;     /* list of child links */
+	struct ylist_head dirty;	/* Entry for list of dirty directories */
 } yaffs_DirectoryStructure;
 
 typedef struct {
@@ -557,10 +558,14 @@ struct yaffs_DeviceParamStruct {
 
 	int emptyLostAndFound;  /* Auto-empty lost+found directory on mount */
 
+	int refreshPeriod;	/* How often we should check to do a block refresh */
+
 	/* Checkpoint control. Can be set before or after initialisation */
 	__u8 skipCheckpointRead;
 	__u8 skipCheckpointWrite;
 
+	int enableXattr;	/* Enable xattribs */
+
 	/* NAND access functions (Must be set before calling YAFFS)*/
 
 	int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,
@@ -595,17 +600,18 @@ struct yaffs_DeviceParamStruct {
 
 	/* 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 */
-
-	YCHAR *pathDividers;	/* String of legal path dividers */
-
+	int disableSoftDelete;  /* yaffs 1 only: Set to disable the use of softdeletion. */
+	
+	int deferDirectoryUpdate; /* Set to defer directory updates */
 	
-
-	/* End of stuff that must be set before initialisation. */
 };
 
 typedef struct yaffs_DeviceParamStruct yaffs_DeviceParam;
@@ -685,10 +691,6 @@ struct yaffs_DeviceStruct {
 	int nFreeTnodes;
 	yaffs_TnodeList *allocatedTnodeList;
 
-	int isDoingGC;
-	int gcBlock;
-	int gcChunk;
-
 	int nObjectsCreated;
 	yaffs_Object *freeObjects;
 	int nFreeObjects;
@@ -698,15 +700,22 @@ struct yaffs_DeviceStruct {
 	yaffs_ObjectList *allocatedObjectList;
 
 	yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS];
+	__u32 bucketFinder;
 
 	int nFreeChunks;
 
-	int currentDirtyChecker;	/* Used to find current dirtiest block */
-
+	/* Garbage collection control */
 	__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;
@@ -723,8 +732,6 @@ struct yaffs_DeviceStruct {
 	yaffs_ChunkCache *srCache;
 	int srLastUse;
 
-	int cacheHits;
-
 	/* Stuff for background deletion and unlinked files.*/
 	yaffs_Object *unlinkedDir;	/* Directory where unlinked and deleted files live. */
 	yaffs_Object *deletedDir;	/* Directory where deleted objects are sent to disappear. */
@@ -733,7 +740,6 @@ struct yaffs_DeviceStruct {
 	int nUnlinkedFiles;		/* Count of unlinked files. */
 	int nBackgroundDeletions;	/* Count of background deletions. */
 
-
 	/* Temporary buffer management */
 	yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
 	int maxTemp;
@@ -744,24 +750,36 @@ struct yaffs_DeviceStruct {
 	/* 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. */
+
+	/* Dirty directory handling */
+	struct ylist_head dirtyDirectories; /* List of dirty directories */
+
 
 	/* Statistcs */
-	int nPageWrites;
-	int nPageReads;
-	int nBlockErasures;
-	int nErasureFailures;
-	int nGCCopies;
-	int garbageCollections;
-	int passiveGarbageCollections;
-	int nRetriedWrites;
-	int nRetiredBlocks;
-	int eccFixed;
-	int eccUnfixed;
-	int tagsEccFixed;
-	int tagsEccUnfixed;
-	int nDeletions;
-	int nUnmarkedDeletions;
+	__u32 nPageWrites;
+	__u32 nPageReads;
+	__u32 nBlockErasures;
+	__u32 nErasureFailures;
+	__u32 nGCCopies;
+	__u32 allGCs;
+	__u32 passiveGCs;
+	__u32 oldestDirtyGCs;
+	__u32 backgroundGCs;
+	__u32 nRetriedWrites;
+	__u32 nRetiredBlocks;
+	__u32 eccFixed;
+	__u32 eccUnfixed;
+	__u32 tagsEccFixed;
+	__u32 tagsEccUnfixed;
+	__u32 nDeletions;
+	__u32 nUnmarkedDeletions;
+	__u32 refreshCount;
+	__u32 cacheHits;
+
 };
 
 typedef struct yaffs_DeviceStruct yaffs_Device;
@@ -793,7 +811,6 @@ typedef struct {
 
 	/* yaffs2 runtime stuff */
 	unsigned sequenceNumber;	/* Sequence number of currently allocating block */
-	unsigned oldestDirtySequence;
 
 } yaffs_CheckpointDevice;
 
@@ -871,6 +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);
 
+
+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);
@@ -882,6 +905,10 @@ void yfsd_WinFileTimeNow(__u32 target[2]);
 
 void yaffs_HandleDeferedFree(yaffs_Object *obj);
 
+void yaffs_UpdateDirtyDirectories(yaffs_Device *dev);
+
+int yaffs_BackgroundGarbageCollect(yaffs_Device *dev, unsigned urgency);
+
 /* Debug dump  */
 int yaffs_DumpObject(yaffs_Object *obj);
 
@@ -896,4 +923,5 @@ void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
 __u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo);
 void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo);
 
+
 #endif