Some improvements to garbage collection and st_xxx to yst_xxx changes
[yaffs2.git] / yaffs_fs.c
index 0efbee3..a697752 100644 (file)
@@ -15,7 +15,8 @@
  * the VFS.
  *
  * Special notes: 
  * the VFS.
  *
  * Special notes: 
- * >> sb->u.generic_sbp points to the yaffs_Device associated with this superblock
+ * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with this superblock
+ * >> 2.6: sb->s_fs_info  points to the yaffs_Device associated with this superblock
  * >> inode->u.generic_ip points to the associated yaffs_Object.
  *
  *
  * >> inode->u.generic_ip points to the associated yaffs_Object.
  *
  *
@@ -29,7 +30,7 @@
  */
 
 
  */
 
 
-const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.7 2005-07-05 23:54:59 charles Exp $";
+const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.8 2005-07-18 23:16:04 charles Exp $";
 extern const char *yaffs_guts_c_version;
 
 
 extern const char *yaffs_guts_c_version;
 
 
@@ -329,7 +330,7 @@ static struct dentry * yaffs_lookup(struct inode *dir, struct dentry *dentry)
        {
                T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_lookup found %d\n",obj->objectId));
                
        {
                T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_lookup found %d\n",obj->objectId));
                
-               inode = yaffs_get_inode(dir->i_sb, obj->st_mode,0,obj);
+               inode = yaffs_get_inode(dir->i_sb, obj->yst_mode,0,obj);
                
                if(inode)
                {
                
                if(inode)
                {
@@ -612,25 +613,25 @@ static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
        if (inode && obj) 
        {
                inode->i_ino = obj->objectId;
        if (inode && obj) 
        {
                inode->i_ino = obj->objectId;
-               inode->i_mode = obj->st_mode;
-               inode->i_uid = obj->st_uid;
-               inode->i_gid = obj->st_gid;
+               inode->i_mode = obj->yst_mode;
+               inode->i_uid = obj->yst_uid;
+               inode->i_gid = obj->yst_gid;
                inode->i_blksize = inode->i_sb->s_blocksize;
 //#if defined(CONFIG_KERNEL_2_5)
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 
                inode->i_blksize = inode->i_sb->s_blocksize;
 //#if defined(CONFIG_KERNEL_2_5)
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 
-               inode->i_rdev = old_decode_dev(obj->st_rdev);
-               inode->i_atime.tv_sec = (time_t)(obj->st_atime);
+               inode->i_rdev = old_decode_dev(obj->yst_rdev);
+               inode->i_atime.tv_sec = (time_t)(obj->yst_atime);
                inode->i_atime.tv_nsec = 0;
                inode->i_atime.tv_nsec = 0;
-               inode->i_mtime.tv_sec = (time_t)obj->st_mtime;
+               inode->i_mtime.tv_sec = (time_t)obj->yst_mtime;
                inode->i_mtime.tv_nsec =0;
                inode->i_mtime.tv_nsec =0;
-               inode->i_ctime.tv_sec = (time_t)obj->st_ctime;
+               inode->i_ctime.tv_sec = (time_t)obj->yst_ctime;
                inode->i_ctime.tv_nsec = 0;
 #else
                inode->i_ctime.tv_nsec = 0;
 #else
-               inode->i_rdev = obj->st_rdev;
-               inode->i_atime = obj->st_atime;
-               inode->i_mtime = obj->st_mtime;
-               inode->i_ctime = obj->st_ctime;
+               inode->i_rdev = obj->yst_rdev;
+               inode->i_atime = obj->yst_atime;
+               inode->i_mtime = obj->yst_mtime;
+               inode->i_ctime = obj->yst_ctime;
 #endif
                inode->i_size = yaffs_GetObjectFileLength(obj);
                inode->i_blocks = (inode->i_size + 511) >> 9;
 #endif
                inode->i_size = yaffs_GetObjectFileLength(obj);
                inode->i_blocks = (inode->i_size + 511) >> 9;
@@ -640,13 +641,13 @@ static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
                T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
                                inode->i_mode, inode->i_uid, inode->i_gid, (int)inode->i_size, atomic_read(&inode->i_count)));
                
                T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
                                inode->i_mode, inode->i_uid, inode->i_gid, (int)inode->i_size, atomic_read(&inode->i_count)));
                
-               switch (obj->st_mode & S_IFMT) 
+               switch (obj->yst_mode & S_IFMT) 
                {
                        default: // fifo, device or socket
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
                {
                        default: // fifo, device or socket
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-                               init_special_inode(inode, obj->st_mode,old_decode_dev(obj->st_rdev));
+                               init_special_inode(inode, obj->yst_mode,old_decode_dev(obj->yst_rdev));
 #else
 #else
-                                 init_special_inode(inode, obj->st_mode,(dev_t)(obj->st_rdev));
+                                 init_special_inode(inode, obj->yst_mode,(dev_t)(obj->yst_rdev));
 #endif                         break;
                        case S_IFREG:   // file         
                                inode->i_op = &yaffs_file_inode_operations;
 #endif                         break;
                        case S_IFREG:   // file         
                                inode->i_op = &yaffs_file_inode_operations;
@@ -1091,7 +1092,7 @@ static int yaffs_symlink(struct inode * dir, struct dentry *dentry, const char *
 
                struct inode* inode;
        
 
                struct inode* inode;
        
-               inode = yaffs_get_inode(dir->i_sb, obj->st_mode, 0, obj);
+               inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
                d_instantiate(dentry, inode);
                T(YAFFS_TRACE_OS,(KERN_DEBUG"symlink created OK\n"));
                return 0;
                d_instantiate(dentry, inode);
                T(YAFFS_TRACE_OS,(KERN_DEBUG"symlink created OK\n"));
                return 0;
@@ -1200,7 +1201,7 @@ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
                        error = -EPERM;
                }
                yaffs_GrossUnlock(dev);
                        error = -EPERM;
                }
                yaffs_GrossUnlock(dev);
-               inode_setattr(inode,attr);
+               error = inode_setattr(inode,attr);
        }
        return error;
 }
        }
        return error;
 }
@@ -1353,7 +1354,13 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,int useRam
 #ifdef CONFIG_YAFFS_RAM_ENABLED
                // Set the yaffs_Device up for ram emulation
 
 #ifdef CONFIG_YAFFS_RAM_ENABLED
                // Set the yaffs_Device up for ram emulation
 
+               
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+               sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL);
+#else
                sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL);
                sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL);
+#endif
+
                if(!dev)
                {
                        // Deep shit could not allocate device structure
                if(!dev)
                {
                        // Deep shit could not allocate device structure
@@ -1696,7 +1703,7 @@ static struct file_system_type yaffs_ram_fs_type = {
        .get_sb         = yaffs_ram_read_super,
        .kill_sb        = kill_block_super,
 //     .kill_sb        = kill_litter_super,
        .get_sb         = yaffs_ram_read_super,
        .kill_sb        = kill_block_super,
 //     .kill_sb        = kill_litter_super,
-       .fs_flags       = FS_SINGLE,
+       .fs_flags       = ,
 };
 #else
 static struct super_block *yaffs_ram_read_super(struct super_block * sb, void * data, int silent)
 };
 #else
 static struct super_block *yaffs_ram_read_super(struct super_block * sb, void * data, int silent)
@@ -1725,7 +1732,7 @@ static struct file_system_type yaffs2_ram_fs_type = {
        .get_sb         = yaffs2_ram_read_super,
        .kill_sb        = kill_block_super,
 //     .kill_sb        = kill_litter_super,
        .get_sb         = yaffs2_ram_read_super,
        .kill_sb        = kill_block_super,
 //     .kill_sb        = kill_litter_super,
-       .fs_flags       = FS_SINGLE,
+       .fs_flags       = ,
 };
 #else
 static struct super_block *yaffs2_ram_read_super(struct super_block * sb, void * data, int silent)
 };
 #else
 static struct super_block *yaffs2_ram_read_super(struct super_block * sb, void * data, int silent)