Commit ce23f29e authored by Al Viro's avatar Al Viro
Browse files

mshv_eventfd: convert to CLASS(fd) 



similar to 66635b07 ("assorted variants of irqfd setup: convert
to CLASS(fd)") a year ago...

Acked-by: default avatarWei Liu <wei.liu@kernel.org>
Reviewed-by: default avatarNuno Das Neves <nunodasneves@linux.microsoft.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent d7b8f8e2

drivers/hv/mshv_eventfd.c

+3 −11
Original line number Diff line number Diff line
@@ -377,10 +377,11 @@ static int mshv_irqfd_assign(struct mshv_partition *pt, 
	struct eventfd_ctx *eventfd = NULL, *resamplefd = NULL;

	struct mshv_irqfd *irqfd, *tmp;

	unsigned int events;

	struct fd f;

	int ret;

	int idx;



	CLASS(fd, f)(args->fd);



	irqfd = kzalloc(sizeof(*irqfd), GFP_KERNEL);

	if (!irqfd)

		return -ENOMEM;
@@ -390,8 +391,7 @@ static int mshv_irqfd_assign(struct mshv_partition *pt, 
	INIT_WORK(&irqfd->irqfd_shutdown, mshv_irqfd_shutdown);

	seqcount_spinlock_init(&irqfd->irqfd_irqe_sc, &pt->pt_irqfds_lock);



	f = fdget(args->fd);

	if (!fd_file(f)) {

	if (fd_empty(f)) {

		ret = -EBADF;

		goto out;

	}
@@ -496,12 +496,6 @@ static int mshv_irqfd_assign(struct mshv_partition *pt, 
		mshv_assert_irq_slow(irqfd);



	srcu_read_unlock(&pt->pt_irq_srcu, idx);

	/*

	 * do not drop the file until the irqfd is fully initialized, otherwise

	 * we might race against the POLLHUP

	 */

	fdput(f);



	return 0;



fail:
@@ -514,8 +508,6 @@ static int mshv_irqfd_assign(struct mshv_partition *pt, 
	if (eventfd && !IS_ERR(eventfd))

		eventfd_ctx_put(eventfd);



	fdput(f);



out:

	kfree(irqfd);

	return ret;