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Diffstat (limited to 'target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c')
-rw-r--r--target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c102
1 files changed, 43 insertions, 59 deletions
diff --git a/target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c b/target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c
index ab6a3a7e00..67001b10e6 100644
--- a/target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c
+++ b/target/linux/generic-2.6/files-2.6.25/fs/yaffs2/yaffs_fs.c
@@ -32,7 +32,7 @@
*/
const char *yaffs_fs_c_version =
- "$Id: yaffs_fs.c,v 1.66 2008-05-05 07:58:58 charles Exp $";
+ "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $";
extern const char *yaffs_guts_c_version;
#include <linux/version.h>
@@ -53,8 +53,6 @@ extern const char *yaffs_guts_c_version;
#include <linux/string.h>
#include <linux/ctype.h>
-#include "asm/div64.h"
-
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
#include <linux/statfs.h> /* Added NCB 15-8-2003 */
@@ -755,8 +753,6 @@ static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj)
break;
}
- inode->i_flags |= S_NOATIME;
-
inode->i_ino = obj->objectId;
inode->i_mode = obj->yst_mode;
inode->i_uid = obj->yst_uid;
@@ -1354,47 +1350,25 @@ static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
buf->f_type = YAFFS_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_namelen = 255;
-
- if(dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)){
- /* Do this if chunk size is not a power of 2 */
-
- uint64_t bytesInDev;
- uint64_t bytesFree;
-
- bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock +1))) *
- ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
-
- do_div(bytesInDev,sb->s_blocksize); /* bytesInDev becomes the number of blocks */
- buf->f_blocks = bytesInDev;
-
- bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
- ((uint64_t)(dev->nDataBytesPerChunk));
-
- do_div(bytesFree,sb->s_blocksize);
-
- buf->f_bfree = bytesFree;
-
- } else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
-
+ if (sb->s_blocksize > dev->nDataBytesPerChunk) {
+
buf->f_blocks =
- (dev->endBlock - dev->startBlock + 1) *
- dev->nChunksPerBlock /
- (sb->s_blocksize / dev->nDataBytesPerChunk);
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) /
- (sb->s_blocksize / dev->nDataBytesPerChunk);
+ (dev->endBlock - dev->startBlock +
+ 1) * dev->nChunksPerBlock / (sb->s_blocksize /
+ dev->nDataBytesPerChunk);
+ buf->f_bfree =
+ yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize /
+ dev->nDataBytesPerChunk);
} else {
- buf->f_blocks =
- (dev->endBlock - dev->startBlock + 1) *
- dev->nChunksPerBlock *
- (dev->nDataBytesPerChunk / sb->s_blocksize);
-
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) *
- (dev->nDataBytesPerChunk / sb->s_blocksize);
+
+ buf->f_blocks =
+ (dev->endBlock - dev->startBlock +
+ 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk /
+ sb->s_blocksize);
+ buf->f_bfree =
+ yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk /
+ sb->s_blocksize);
}
-
-
buf->f_files = 0;
buf->f_ffree = 0;
buf->f_bavail = buf->f_bfree;
@@ -1628,7 +1602,6 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
sb->s_magic = YAFFS_MAGIC;
sb->s_op = &yaffs_super_ops;
- sb->s_flags |= MS_NOATIME;
if (!sb)
printk(KERN_INFO "yaffs: sb is NULL\n");
@@ -1705,15 +1678,22 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
#ifdef CONFIG_YAFFS_AUTO_YAFFS2
if (yaffsVersion == 1 &&
- WRITE_SIZE(mtd) >= 2048) {
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ mtd->writesize >= 2048) {
+#else
+ mtd->oobblock >= 2048) {
+#endif
T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n"));
yaffsVersion = 2;
}
/* Added NCB 26/5/2006 for completeness */
- if (yaffsVersion == 2 &&
- !options.inband_tags &&
- WRITE_SIZE(mtd) == 512){
+ if (yaffsVersion == 2 &&
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ mtd->writesize == 512) {
+#else
+ mtd->oobblock == 512) {
+#endif
T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n"));
yaffsVersion = 1;
}
@@ -1739,9 +1719,12 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
return NULL;
}
- if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
- !options.inband_tags) {
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+#else
+ if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+#endif
+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) {
T(YAFFS_TRACE_ALWAYS,
("yaffs: MTD device does not have the "
"right page sizes\n"));
@@ -1801,10 +1784,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
dev->startBlock = 0;
dev->endBlock = nBlocks - 1;
dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
- dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
+ dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
dev->nReservedBlocks = 5;
dev->nShortOpCaches = (options.no_cache) ? 0 : 10;
- dev->inbandTags = options.inband_tags;
/* ... and the functions. */
if (yaffsVersion == 2) {
@@ -1817,14 +1799,15 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
dev->spareBuffer = YMALLOC(mtd->oobsize);
dev->isYaffs2 = 1;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- dev->totalBytesPerChunk = mtd->writesize;
+ dev->nDataBytesPerChunk = mtd->writesize;
dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
#else
- dev->totalBytesPerChunk = mtd->oobblock;
+ dev->nDataBytesPerChunk = mtd->oobblock;
dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
#endif
nBlocks = mtd->size / mtd->erasesize;
+ dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS;
dev->startBlock = 0;
dev->endBlock = nBlocks - 1;
} else {
@@ -2007,12 +1990,12 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
{
buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock);
buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock);
- buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk);
buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks);
+ buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks);
buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
@@ -2023,8 +2006,10 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads);
buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures);
buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies);
- buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
- buf += sprintf(buf, "passiveGCs......... %d\n",
+ buf +=
+ sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
+ buf +=
+ sprintf(buf, "passiveGCs......... %d\n",
dev->passiveGarbageCollections);
buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites);
buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches);
@@ -2040,7 +2025,6 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions);
buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC);
buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2);
- buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags);
return buf;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 13:56:26 +0000