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Commit 4136510d authored by Eric Paris's avatar Eric Paris
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fsnotify: add vfsmount specific fields to the fsnotify_mark_entry union 



vfsmount marks need mostly the same data as inode specific fields, but for
consistency and understandability we put that data in a vfsmount specific
struct inside a union with inode specific data.

Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent 2823e04d

include/linux/fsnotify_backend.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -235,6 +235,15 @@ struct fsnotify_inode_mark { 
	struct list_head free_i_list;	/* tmp list used when freeing this mark */

	struct list_head free_i_list;	/* tmp list used when freeing this mark */

};

};





/*

 * Mount point specific fields in an fsnotify_mark_entry

 */

struct fsnotify_vfsmount_mark {

	struct vfsmount *mnt;		/* inode this entry is associated with */

	struct hlist_node m_list;	/* list of mark_entries by inode->i_fsnotify_mark_entries */

	struct list_head free_m_list;	/* tmp list used when freeing this mark */

};



/*

/*

 * a mark is simply an entry attached to an in core inode which allows an

 * a mark is simply an entry attached to an in core inode which allows an

 * fsnotify listener to indicate they are either no longer interested in events

 * fsnotify listener to indicate they are either no longer interested in events
@@ -255,6 +264,7 @@ struct fsnotify_mark_entry { 
	spinlock_t lock;		/* protect group and inode */

	spinlock_t lock;		/* protect group and inode */

	union {

	union {

		struct fsnotify_inode_mark i;

		struct fsnotify_inode_mark i;

		struct fsnotify_vfsmount_mark m;

	};

	};

	struct list_head free_g_list;	/* tmp list used when freeing this mark */

	struct list_head free_g_list;	/* tmp list used when freeing this mark */

	void (*free_mark)(struct fsnotify_mark_entry *entry); /* called on final put+free */

	void (*free_mark)(struct fsnotify_mark_entry *entry); /* called on final put+free */