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Commit 98612952 authored Jun 14, 2011 by Lino Sanfilippo Committed by Eric Paris Dec 11, 2012

fsnotify: introduce fsnotify_get_group()



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

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric 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 */