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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: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris 2009-12-17 21:24:23 -05:00
parent 2823e04de4
commit 4136510dd6
1 changed files with 10 additions and 0 deletions
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10
include/linux/fsnotify_backend.h
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@ -235,6 +235,15 @@ struct fsnotify_inode_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
* 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 */
union {
struct fsnotify_inode_mark i;
struct fsnotify_vfsmount_mark m;
};
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 */