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Commit 5444e298 authored by Eric Paris's avatar Eric Paris
Browse files

fsnotify: split generic and inode specific mark code 



currently all marking is done by functions in inode-mark.c.  Some of this
is pretty generic and should be instead done in a generic function and we
should only put the inode specific code in inode-mark.c

Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent 32c32632

fs/notify/Makefile

+2 −1
Original line number Diff line number Diff line 
obj-$(CONFIG_FSNOTIFY)		+= fsnotify.o notification.o group.o inode_mark.o

obj-$(CONFIG_FSNOTIFY)		+= fsnotify.o notification.o group.o inode_mark.o \

				   mark.o



obj-y			+= dnotify/

obj-y			+= inotify/

fs/notify/dnotify/dnotify.c

+6 −6
Original line number Diff line number Diff line
@@ -95,7 +95,7 @@ static int dnotify_handle_event(struct fsnotify_group *group, 


	to_tell = event->to_tell;



	fsn_mark = fsnotify_find_mark(group, to_tell);

	fsn_mark = fsnotify_find_inode_mark(group, to_tell);

	if (unlikely(!fsn_mark))

		return 0;

	dn_mark = container_of(fsn_mark, struct dnotify_mark, fsn_mark);
@@ -143,14 +143,14 @@ static bool dnotify_should_send_event(struct fsnotify_group *group, 
	if (!S_ISDIR(inode->i_mode))

		return false;



	fsn_mark = fsnotify_find_mark(group, inode);

	fsn_mark = fsnotify_find_inode_mark(group, inode);

	if (!fsn_mark)

		return false;



	mask = (mask & ~FS_EVENT_ON_CHILD);

	send = (mask & fsn_mark->mask);



	fsnotify_put_mark(fsn_mark); /* matches fsnotify_find_mark */

	fsnotify_put_mark(fsn_mark); /* matches fsnotify_find_inode_mark */



	return send;

}
@@ -193,7 +193,7 @@ void dnotify_flush(struct file *filp, fl_owner_t id) 
	if (!S_ISDIR(inode->i_mode))

		return;



	fsn_mark = fsnotify_find_mark(dnotify_group, inode);

	fsn_mark = fsnotify_find_inode_mark(dnotify_group, inode);

	if (!fsn_mark)

		return;

	dn_mark = container_of(fsn_mark, struct dnotify_mark, fsn_mark);
@@ -346,12 +346,12 @@ int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg) 
	mutex_lock(&dnotify_mark_mutex);



	/* add the new_fsn_mark or find an old one. */

	fsn_mark = fsnotify_find_mark(dnotify_group, inode);

	fsn_mark = fsnotify_find_inode_mark(dnotify_group, inode);

	if (fsn_mark) {

		dn_mark = container_of(fsn_mark, struct dnotify_mark, fsn_mark);

		spin_lock(&fsn_mark->lock);

	} else {

		fsnotify_add_mark(new_fsn_mark, dnotify_group, inode, 0);

		fsnotify_add_mark(new_fsn_mark, dnotify_group, inode, NULL, 0);

		spin_lock(&new_fsn_mark->lock);

		fsn_mark = new_fsn_mark;

		dn_mark = new_dn_mark;

fs/notify/fanotify/fanotify.c

+1 −1
Original line number Diff line number Diff line
@@ -118,7 +118,7 @@ static bool fanotify_should_send_event(struct fsnotify_group *group, struct inod 
	if (data_type != FSNOTIFY_EVENT_PATH)

		return false;



	fsn_mark = fsnotify_find_mark(group, inode);

	fsn_mark = fsnotify_find_inode_mark(group, inode);

	if (!fsn_mark)

		return false;

fs/notify/fanotify/fanotify_user.c

+4 −4
Original line number Diff line number Diff line
@@ -305,7 +305,7 @@ static int fanotify_remove_mark(struct fsnotify_group *group, 
	pr_debug("%s: group=%p inode=%p mask=%x\n", __func__,

		 group, inode, mask);



	fsn_mark = fsnotify_find_mark(group, inode);

	fsn_mark = fsnotify_find_inode_mark(group, inode);

	if (!fsn_mark)

		return -ENOENT;
@@ -321,7 +321,7 @@ static int fanotify_remove_mark(struct fsnotify_group *group, 


	fsnotify_recalc_group_mask(group);



	/* matches the fsnotify_find_mark() */

	/* matches the fsnotify_find_inode_mark() */

	fsnotify_put_mark(fsn_mark);



	return 0;
@@ -338,7 +338,7 @@ static int fanotify_add_mark(struct fsnotify_group *group, 
	pr_debug("%s: group=%p inode=%p mask=%x\n", __func__,

		 group, inode, mask);



	fsn_mark = fsnotify_find_mark(group, inode);

	fsn_mark = fsnotify_find_inode_mark(group, inode);

	if (!fsn_mark) {

		struct fsnotify_mark *new_fsn_mark;
@@ -348,7 +348,7 @@ static int fanotify_add_mark(struct fsnotify_group *group, 
			goto out;



		fsnotify_init_mark(new_fsn_mark, fanotify_free_mark);

		ret = fsnotify_add_mark(new_fsn_mark, group, inode, 0);

		ret = fsnotify_add_mark(new_fsn_mark, group, inode, NULL, 0);

		if (ret) {

			fanotify_free_mark(new_fsn_mark);

			goto out;

fs/notify/fsnotify.h

+7 −0
Original line number Diff line number Diff line
@@ -20,6 +20,11 @@ extern __u32 fsnotify_vfsmount_mask; 
/* destroy all events sitting in this groups notification queue */

extern void fsnotify_flush_notify(struct fsnotify_group *group);



/* add a mark to an inode */

extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,

				   struct fsnotify_group *group, struct inode *inode,

				   int allow_dups);



/* add a group to the inode group list */

extern void fsnotify_add_inode_group(struct fsnotify_group *group);

/* add a group to the vfsmount group list */
@@ -27,6 +32,8 @@ extern void fsnotify_add_vfsmount_group(struct fsnotify_group *group); 
/* final kfree of a group */

extern void fsnotify_final_destroy_group(struct fsnotify_group *group);



/* inode specific destruction of a mark */

extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);

/* run the list of all marks associated with inode and flag them to be freed */

extern void fsnotify_clear_marks_by_inode(struct inode *inode);

/*