[RFC 3/3] vhost: improve VDUSE reconnect handler cleanup

[Maxime Coquelin]

This patch makes use of the new FD entry cleanup callback
to close the VDUSE reconnect eventfd after its removal
from the FD set.

Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 lib/vhost/vduse.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
index 9c10fbc684..a841da966c 100644
--- a/lib/vhost/vduse.c
+++ b/lib/vhost/vduse.c
@@ -563,16 +563,21 @@ vduse_reconnect_log_check(struct virtio_net *dev, 
uint64_t features, uint32_t to
 }
 
 static void
-vduse_reconnect_handler(int fd, void *arg, int *remove)
+vduse_reconnect_handler(int fd __rte_unused, void *arg, int *remove)
 {
        struct virtio_net *dev = arg;
 
        vduse_device_start(dev, true);
 
-       close(fd);
        *remove = 1;
 }
 
+static void
+vduse_reconnect_handler_cleanup(int fd, void *arg __rte_unused)
+{
+       close(fd);
+}
+
 static int
 vduse_reconnect_start_device(struct virtio_net *dev)
 {
@@ -590,7 +595,8 @@ vduse_reconnect_start_device(struct virtio_net *dev)
                goto out_err;
        }
 
-       ret = fdset_add(vduse.fdset, fd, vduse_reconnect_handler, NULL, NULL, 
dev);
+       ret = fdset_add(vduse.fdset, fd, vduse_reconnect_handler, NULL,
+                       vduse_reconnect_handler_cleanup, dev);
        if (ret) {
                VHOST_CONFIG_LOG(dev->ifname, ERR, "Failed to add reconnect efd 
%d to vduse fdset",
                                fd);
-- 
2.47.1