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mshv_eventfd: convert to CLASS(fd)

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similar to 66635b0776 ("assorted variants of irqfd setup: convert
to CLASS(fd)") a year ago...

Acked-by: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-07-12 12:48:12 -04:00
parent d7b8f8e208
commit ce23f29e7d
1 changed files with 3 additions and 11 deletions
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14
drivers/hv/mshv_eventfd.c
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@ -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;