fs: add new vfs_poll and file_can_poll helpers

These abstract out calls to the poll method in preparation for changes
in how we poll.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 6e865e8b5b10..90d30fbe95ae 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -397,7 +397,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
          * Check if there was an event already pending on the eventfd
          * before we registered, and trigger it as if we didn't miss it.
          */
-        events = f.file->f_op->poll(f.file, &irqfd->pt);
+        events = vfs_poll(f.file, &irqfd->pt);
 
         if (events & EPOLLIN)
                 schedule_work(&irqfd->inject);