Differential D53079 Diff 164159 sys/fs/unionfs/union_subr.c

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sys/fs/unionfs/union_subr.c

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	* for the process that owns td. Return NULL if no such object exists.			* for the process that owns td. Return NULL if no such object exists.
	*/			*/
	struct unionfs_node_status *			struct unionfs_node_status *
	unionfs_find_node_status(struct unionfs_node unp, struct thread td)			unionfs_find_node_status(struct unionfs_node unp, struct thread td)
	{			{
	struct unionfs_node_status *unsp;			struct unionfs_node_status *unsp;
	pid_t pid;			pid_t pid;

				MPASS(td != NULL);
	pid = td->td_proc->p_pid;			pid = td->td_proc->p_pid;

	ASSERT_VOP_ELOCKED(UNIONFSTOV(unp), __func__);			ASSERT_VOP_ELOCKED(UNIONFSTOV(unp), __func__);

	LIST_FOREACH(unsp, &(unp->un_unshead), uns_list) {			LIST_FOREACH(unsp, &(unp->un_unshead), uns_list) {
	if (unsp->uns_pid == pid) {			if (unsp->uns_pid == pid) {
	return (unsp);			return (unsp);
	}			}
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	*/			*/
	void			void
	unionfs_get_node_status(struct unionfs_node unp, struct thread td,			unionfs_get_node_status(struct unionfs_node unp, struct thread td,
	struct unionfs_node_status **unspp)			struct unionfs_node_status **unspp)
	{			{
	struct unionfs_node_status *unsp;			struct unionfs_node_status *unsp;
	pid_t pid;			pid_t pid;

				MPASS(td != NULL);
	pid = td->td_proc->p_pid;			pid = td->td_proc->p_pid;

	KASSERT(NULL != unspp, ("%s: NULL status", __func__));			KASSERT(NULL != unspp, ("%s: NULL status", __func__));
	unsp = unionfs_find_node_status(unp, td);			unsp = unionfs_find_node_status(unp, td);
	if (unsp == NULL) {			if (unsp == NULL) {
	/* create a new unionfs node status */			/* create a new unionfs node status */
	unsp = malloc(sizeof(struct unionfs_node_status),			unsp = malloc(sizeof(struct unionfs_node_status),
	M_TEMP, M_WAITOK \| M_ZERO);			M_TEMP, M_WAITOK \| M_ZERO);
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