超级块的数据结构

共有 2 条评论

1. as_you_2007 于 2008-10-26 20:03:43发表:

   太感谢了 自己怎么找都找不到。。。

2. niutao0602 于 2008-10-26 16:46:48发表:

   /include/linux/fs.h[code]struct super_block {
   struct list_head s_list; /* Keep this first */
   dev_t s_dev; /* search index; _not_ kdev_t */
   unsigned long s_blocksize;
   unsigned char s_blocksize_bits;
   unsigned char s_dirt;
   unsigned long long s_maxbytes; /* Max file size */
   struct file_system_type *s_type;
   const struct super_operations *s_op;
   struct dquot_operations *dq_op;
   struct quotactl_ops *s_qcop;
   const struct export_operations *s_export_op;
   unsigned long s_flags;
   unsigned long s_magic;
   struct dentry *s_root;
   struct rw_semaphore s_umount;
   struct mutex s_lock;
   int s_count;
   int s_syncing;
   int s_need_sync_fs;
   atomic_t s_active;
   #ifdef CONFIG_SECURITY
   void *s_security;
   #endif
   struct xattr_handler **s_xattr;
   
   struct list_head s_inodes; /* all inodes */
   struct list_head s_dirty; /* dirty inodes */
   struct list_head s_io; /* parked for writeback */
   struct list_head s_more_io; /* parked for more writeback */
   struct hlist_head s_anon; /* anonymous dentries for (nfs) exporting */
   struct list_head s_files;
   
   struct block_device *s_bdev;
   struct mtd_info *s_mtd;
   struct list_head s_instances;
   struct quota_info s_dquot; /* Diskquota specific options */
   
   int s_frozen;
   wait_queue_head_t s_wait_unfrozen;
   
   char s_id[32]; /* Informational name */
   
   void *s_fs_info; /* Filesystem private info */
   
   /*
   * The next field is for VFS *only*. No filesystems have any business
   * even looking at it. You had been warned.
   */
   struct mutex s_vfs_rename_mutex; /* Kludge */
   
   /* Granularity of c/m/atime in ns.
   Cannot be worse than a second */
   u32 s_time_gran;
   
   /*
   * Filesystem subtype. If non-empty the filesystem type field
   * in /proc/mounts will be "type.subtype"
   */
   char *s_subtype;
   };[/code]