Commit 98612952 authored by Lino Sanfilippo's avatar Lino Sanfilippo Committed by Eric Paris
Browse files

fsnotify: introduce fsnotify_get_group() 



Introduce fsnotify_get_group() which increments the reference counter of a group.

Signed-off-by: default avatarLino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent d8153d4d

fs/notify/group.c

+8 −0
Original line number Diff line number Diff line
@@ -62,6 +62,14 @@ void fsnotify_destroy_group(struct fsnotify_group *group) 
		fsnotify_final_destroy_group(group);

}



/*

 * Get reference to a group.

 */

void fsnotify_get_group(struct fsnotify_group *group)

{

	atomic_inc(&group->refcnt);

}



/*

 * Drop a reference to a group.  Free it if it's through.

 */

include/linux/fsnotify_backend.h

+3 −1
Original line number Diff line number Diff line
@@ -360,8 +360,10 @@ static inline void __fsnotify_d_instantiate(struct dentry *dentry, struct inode 


/* called from fsnotify listeners, such as fanotify or dnotify */



/* get a reference to an existing or create a new group */

/* create a new group */

extern struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops);

/* get reference to a group */

extern void fsnotify_get_group(struct fsnotify_group *group);

/* drop reference on a group from fsnotify_alloc_group */

extern void fsnotify_put_group(struct fsnotify_group *group);

/* destroy group */

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