On 2010年08月27日 15:29, Peter Pan(潘卫平) wrote:
quoted text
> From: Peter Pan<wppan@redflag-linux.com>
>
> Signed-off-by: Peter Pan<wppan@redflag-linux.com>
> ---
>   include/linux/fs.h |    7 ++++---
>   1 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 44f35ae..8382a33 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -1335,7 +1335,7 @@ struct super_block {
>   	struct mutex		s_lock;
>   	int			s_count;
>   	int			s_need_sync;
> -	atomic_t		s_active;
> +	atomic_t		s_active; // 活动引用计数
>   #ifdef CONFIG_SECURITY
>   	void                    *s_security;
>   #endif
> @@ -1343,7 +1343,7 @@ struct super_block {
>
>   	struct list_head	s_inodes;	/* all inodes */
>   	struct hlist_head	s_anon;		/* anonymous dentries for (nfs) exporting */
> -	struct list_head	s_files;
> +	struct list_head	s_files; // ????????被分区的文件链表????????
>   	/* s_dentry_lru and s_nr_dentry_unused are protected by dcache_lock */
>   	struct list_head	s_dentry_lru;	/* unused dentry lru */
>   	int			s_nr_dentry_unused;	/* # of dentry on lru */
> @@ -1358,7 +1358,8 @@ struct super_block {
>   	wait_queue_head_t	s_wait_unfrozen;
>
>   	char s_id[32];				/* Informational name */
> -
> +	
> +	// 指向具体的文件系统。如ext2指向ext2_sb_info（即内存中的ext2_super_block）
>   	void 			*s_fs_info;	/* Filesystem private info */
>   	fmode_t			s_mode;
>

?????????????
-- 
潘卫平
Peter Pan
Red Flag Software Co.,Ltd
--
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