Change direct handle management to use an inode layer to make it consistent with...

[yaffs2.git] / yaffs_guts.c

diff --git a/yaffs_guts.c b/yaffs_guts.c
index 0bab9cf00f5ea6f8c67146835ff82b048912ffac..f9819f0428b578cb532d3a7a48ebdf9c44d44273 100644 (file)
--- a/yaffs_guts.c
+++ b/yaffs_guts.c
@@ -12,7 +12,7 @@
  */
 
 const char *yaffs_guts_c_version =
-    "$Id: yaffs_guts.c,v 1.100 2009-12-22 04:09:06 charles Exp $";
+    "$Id: yaffs_guts.c,v 1.105 2010-01-06 04:02:12 charles Exp $";
 
 #include "yportenv.h"
 
@@ -1351,6 +1351,7 @@ static void yaffs_DeinitialiseTnodes(yaffs_Device *dev)
 
        dev->freeTnodes = NULL;
        dev->nFreeTnodes = 0;
+       dev->nTnodesCreated = 0;
 }
 
 static void yaffs_InitialiseTnodes(yaffs_Device *dev)
@@ -1807,6 +1808,10 @@ static void yaffs_SoftDeleteFile(yaffs_Object *obj)
  * level 0 tnode entries must be zeroed out.
  * Could also use this for file deletion, but that's probably better handled
  * by a special case.
+ *
+ * This function is recursive. For levels > 0 the function is called again on
+ * any sub-tree. For level == 0 we just check if the sub-tree has data.
+ * If there is no data in a subtree then it is pruned.
  */
 
 static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
@@ -1818,17 +1823,32 @@ static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
        if (tn) {
                hasData = 0;
 
-               for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
-                       if (tn->internal[i] && level > 0) {
-                               tn->internal[i] =
-                                   yaffs_PruneWorker(dev, tn->internal[i],
-                                                     level - 1,
-                                                     (i == 0) ? del0 : 1);
+               if(level > 0){
+                       for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
+                               if (tn->internal[i]) {
+                                       tn->internal[i] =
+                                               yaffs_PruneWorker(dev, tn->internal[i],
+                                                       level - 1,
+                                                       (i == 0) ? del0 : 1);
+                               }
+
+                               if (tn->internal[i])
+                                       hasData++;
                        }
+               } else {
+                       int tnodeSize;
+                       __u32 *map = (__u32 *)tn;
+                       tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
 
-                       if (tn->internal[i])
-                               hasData++;
-               }
+                       if (tnodeSize < sizeof(yaffs_Tnode))
+                               tnodeSize = sizeof(yaffs_Tnode);
+                       tnodeSize /= sizeof(__u32);
+
+                        for(i = 0; !hasData && i < tnodeSize; i++){
+                                if(map[i])
+                                        hasData++;
+                        }
+                }
 
                if (hasData == 0 && del0) {
                        /* Free and return NULL */
@@ -2030,9 +2050,7 @@ static void yaffs_FreeObject(yaffs_Object *tn)
 {
        yaffs_Device *dev = tn->myDev;
 
-#ifdef __KERNEL__
        T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode));
-#endif
 
        if (tn->parent)
                YBUG();
@@ -2040,7 +2058,6 @@ static void yaffs_FreeObject(yaffs_Object *tn)
                YBUG();
 
 
-#ifdef __KERNEL__
        if (tn->myInode) {
                /* We're still hooked up to a cached inode.
                 * Don't delete now, but mark for later deletion
@@ -2048,7 +2065,6 @@ static void yaffs_FreeObject(yaffs_Object *tn)
                tn->deferedFree = 1;
                return;
        }
-#endif
 
        yaffs_UnhashObject(tn);
 
@@ -2090,6 +2106,7 @@ static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
 
        dev->freeObjects = NULL;
        dev->nFreeObjects = 0;
+       dev->nObjectsCreated = 0;
 }
 
 static void yaffs_InitialiseObjects(yaffs_Device *dev)
@@ -5233,13 +5250,8 @@ static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in)
        int retVal;
        int immediateDeletion = 0;
 
-#ifdef __KERNEL__
        if (!in->myInode)
                immediateDeletion = 1;
-#else
-       if (in->inUse <= 0)
-               immediateDeletion = 1;
-#endif
 
        if (immediateDeletion) {
                retVal =
@@ -5359,13 +5371,8 @@ static int yaffs_UnlinkWorker(yaffs_Object *obj)
 
        int immediateDeletion = 0;
 
-#ifdef __KERNEL__
        if (!obj->myInode)
                immediateDeletion = 1;
-#else
-       if (obj->inUse <= 0)
-               immediateDeletion = 1;
-#endif
 
        if(obj)
                yaffs_UpdateParent(obj->parent);
@@ -5382,23 +5389,26 @@ static int yaffs_UnlinkWorker(yaffs_Object *obj)
                 * Instead, we do the following:
                 * - Select a hardlink.
                 * - Unhook it from the hard links
-                * - Unhook it from its parent directory (so that the rename can work)
+                * - Move it from its parent directory (so that the rename can work)
                 * - Rename the object to the hardlink's name.
                 * - Delete the hardlink
                 */
 
                yaffs_Object *hl;
+               yaffs_Object *parent;
                int retVal;
                YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
 
                hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
 
+               yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
+               parent = hl->parent;
+
                ylist_del_init(&hl->hardLinks);
-               ylist_del_init(&hl->siblings);
 
-               yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
+               yaffs_AddObjectToDirectory(obj->myDev->unlinkedDir, hl);
 
-               retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
+               retVal = yaffs_ChangeObjectName(obj,parent, name, 0, 0);
 
                if (retVal == YAFFS_OK)
                        retVal = yaffs_DoGenericObjectDeletion(hl);