+
/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- * yaffs_guts.c The main guts of YAFFS
+ * YAFFS: Yet another FFS. A NAND-flash specific file system.
*
* Copyright (C) 2002 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
+ * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
//yaffs_guts.c
-const char *yaffs_guts_c_version="$Id: yaffs_guts.c,v 1.1 2004-11-03 08:14:07 charles Exp $";
+const char *yaffs_guts_c_version="$Id: yaffs_guts.c,v 1.4 2004-12-17 04:39:04 charles Exp $";
#include "yportenv.h"
return result;
}
-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
+static int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
{
return dev->initialiseNAND(dev);
}
//Horrible, slow implementation
while(nBytes--)
{
- if(*buffer != 0xFF) return 0;
+ if(*buffer != 0xFF) return 0;
+ buffer++;
}
return 1;
}
yaffs_BlockInfo *theBlock;
- T(YAFFS_TRACE_DELETE,(TSTR("soft delete chunk %d" TENDSTR),chunk));
+ T(YAFFS_TRACE_DELETION,(TSTR("soft delete chunk %d" TENDSTR),chunk));
theBlock = yaffs_GetBlockInfo(dev, chunk/dev->nChunksPerBlock);
if(theBlock)
yaffs_Device *dev = tn->myDev;
+#ifdef __KERNEL__
+ if(tn->myInode)
+ {
+ // We're still hooked up to a cached inode.
+ // Don't delete now, but mark for later deletion
+ tn->deferedFree = 1;
+ return;
+ }
+#endif
+
yaffs_UnhashObject(tn);
// Link into the free list.
+#ifdef __KERNEL__
+
+void yaffs_HandleDeferedFree(yaffs_Object *obj)
+{
+ if(obj->deferedFree)
+ {
+ yaffs_FreeObject(obj);
+ }
+}
+
+#endif
+
+
static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
{
#else
-#if defined(CONFIG_KERNEL_2_5)
- theObject->st_atime = theObject->st_mtime = theObject->st_ctime = CURRENT_TIME.tv_sec;
-#else
- theObject->st_atime = theObject->st_mtime = theObject->st_ctime = CURRENT_TIME;
-#endif
+ theObject->st_atime = theObject->st_mtime = theObject->st_ctime = Y_CURRENT_TIME;
#endif
switch(type)
{
in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1];
#else
-#if defined(CONFIG_KERNEL_2_5)
- in->st_atime = in->st_mtime = in->st_ctime = CURRENT_TIME.tv_sec;
-#else
- in->st_atime = in->st_mtime = in->st_ctime = CURRENT_TIME;
-#endif
+ in->st_atime = in->st_mtime = in->st_ctime = Y_CURRENT_TIME;
+
in->st_rdev = rdev;
in->st_uid = uid;
in->st_gid = gid;
int force = 0;
#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
- // Special case for WinCE.
+ // Special case for case insemsitive systems (eg. WinCE).
// While look-up is case insensitive, the name isn't.
// THerefore we might want to change x.txt to X.txt
if(oldDir == newDir && yaffs_strcmp(oldName,newName) == 0)
{
int block;
int aggressive;
- int gcOk;
+ int gcOk = YAFFS_OK;
int maxTries = 0;
//yaffs_DoUnlinkedFileDeletion(dev);
#ifdef CONFIG_YAFFS_WINCE
yfsd_WinFileTimeNow(in->win_mtime);
#else
-#if defined(CONFIG_KERNEL_2_5)
- in->st_mtime = CURRENT_TIME.tv_sec;
-#else
- in->st_mtime = CURRENT_TIME;
-#endif
+
+ in->st_mtime = Y_CURRENT_TIME;
+
#endif
}
__u8 *chunkData;
yaffs_BlockIndex *blockIndex = NULL;
+
+ T(YAFFS_TRACE_SCAN,(TSTR("yaffs_Scan starts startblk %d endblk %d..." TENDSTR),dev->startBlock,dev->endBlock));
chunkData = yaffs_GetTempBuffer(dev,__LINE__);
bi->blockState = state;
bi->sequenceNumber = sequenceNumber;
+
+ T(YAFFS_TRACE_SCAN_DEBUG,(TSTR("Block scanning block %d state %d seq %d" TENDSTR),blk,state,sequenceNumber));
if(state == YAFFS_BLOCK_STATE_DEAD)
{
}
else if(state == YAFFS_BLOCK_STATE_EMPTY)
{
+ T(YAFFS_TRACE_SCAN_DEBUG,(TSTR("Block empty " TENDSTR)));
dev->nErasedBlocks++;
dev->nFreeChunks += dev->nChunksPerBlock;
}
{
startIterator = 0;
endIterator = nBlocksToScan-1;
+ T(YAFFS_TRACE_SCAN_DEBUG,(TSTR("%d blocks to be scanned" TENDSTR),nBlocksToScan));
}
else
{
}
yaffs_ReleaseTempBuffer(dev,chunkData,__LINE__);
+
+ T(YAFFS_TRACE_SCAN,(TSTR("yaffs_Scan ends" TENDSTR)));
+
return YAFFS_OK;
}
if(valid & ATTR_UID) obj->st_uid = attr->ia_uid;
if(valid & ATTR_GID) obj->st_gid = attr->ia_gid;
-#if defined(CONFIG_KERNEL_2_5)
- if(valid & ATTR_ATIME) obj->st_atime = attr->ia_atime.tv_sec;
- if(valid & ATTR_CTIME) obj->st_ctime = attr->ia_ctime.tv_sec;
- if(valid & ATTR_MTIME) obj->st_mtime = attr->ia_mtime.tv_sec;
-#else
- if(valid & ATTR_ATIME) obj->st_atime = attr->ia_atime;
- if(valid & ATTR_CTIME) obj->st_ctime = attr->ia_ctime;
- if(valid & ATTR_MTIME) obj->st_mtime = attr->ia_mtime;
-#endif
+ if(valid & ATTR_ATIME) obj->st_atime = Y_TIME_CONVERT(attr->ia_atime);
+ if(valid & ATTR_CTIME) obj->st_ctime = Y_TIME_CONVERT(attr->ia_ctime);
+ if(valid & ATTR_MTIME) obj->st_mtime = Y_TIME_CONVERT(attr->ia_mtime);
if(valid & ATTR_SIZE) yaffs_ResizeFile(obj,attr->ia_size);
attr->ia_uid = obj->st_uid; valid |= ATTR_UID;
attr->ia_gid = obj->st_gid; valid |= ATTR_GID;
-#if defined(CONFIG_KERNEL_2_5)
- attr->ia_atime.tv_sec = obj->st_atime; valid |= ATTR_ATIME;
- attr->ia_ctime.tv_sec = obj->st_ctime; valid |= ATTR_CTIME;
- attr->ia_mtime.tv_sec = obj->st_mtime; valid |= ATTR_MTIME;
-#else
- attr->ia_atime = obj->st_atime; valid |= ATTR_ATIME;
- attr->ia_ctime = obj->st_ctime; valid |= ATTR_CTIME;
- attr->ia_mtime = obj->st_mtime; valid |= ATTR_MTIME;
-#endif
+ Y_TIME_CONVERT(attr->ia_atime)= obj->st_atime; valid |= ATTR_ATIME;
+ Y_TIME_CONVERT(attr->ia_ctime) = obj->st_ctime; valid |= ATTR_CTIME;
+ Y_TIME_CONVERT(attr->ia_mtime) = obj->st_mtime; valid |= ATTR_MTIME;
+
attr->ia_size = yaffs_GetFileSize(obj); valid |= ATTR_SIZE;
attr->ia_valid = valid;
if(!dev->eraseBlockInNAND ||
!dev->initialiseNAND) return 0;
+#ifdef CONFIG_YAFFS_YAFFS2
+
// Can use the "with tags" style interface for yaffs1 or yaffs2
if(dev->writeChunkWithTagsToNAND &&
dev->readChunkWithTagsFromNAND &&
!dev->readChunkFromNAND &&
dev->markNANDBlockBad &&
dev->queryNANDBlock) return 1;
+#endif
// Can use the "spare" style interface for yaffs1
if(!dev->isYaffs2 &&
int extraBits;
int nBlocks;
+ T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR)));
// Check stuff that must be set
if(!dev)
{
- T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: Need a device\n" TENDSTR)));
+ T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: Need a device" TENDSTR)));
return YAFFS_FAIL;
}
dev->endBlock <= (dev->startBlock + dev->nReservedBlocks + 2) // otherwise it is too small
)
{
- T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: nand geometry problems\n" TENDSTR)));
+ T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " TENDSTR),
+ dev->nBytesPerChunk, dev->isYaffs2 ? "2" : ""));
return YAFFS_FAIL;
}
+ if(yaffs_InitialiseNAND(dev) != YAFFS_OK)
+ {
+ T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: InitialiseNAND failed" TENDSTR)));
+ return YAFFS_FAIL;
+ }
// Got the right mix of functions?
//
-
yaffs_InitialiseBlocks(dev,nBlocks);
yaffs_InitialiseTnodes(dev);
dev->nRetiredBlocks = 0;
-
+ T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
return YAFFS_OK;
}
#endif
-
projects / yaffs2.git / blobdiff