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I doubt anybody in the world uses ng_device, but its write method should

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also enter the network epoch when sending data from user level to netgraph.
This commit is contained in:
Gleb Smirnoff 2020-02-05 03:07:20 +00:00
parent 940508a5be
commit f71291a65e
1 changed files with 5 additions and 0 deletions
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5
sys/netgraph/ng_device.c
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@ -46,6 +46,8 @@
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/poll.h>
#include <sys/proc.h>
#include <sys/epoch.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/systm.h>
@ -454,6 +456,7 @@ ngdread(struct cdev *dev, struct uio *uio, int flag)
static int
ngdwrite(struct cdev *dev, struct uio *uio, int flag)
{
struct epoch_tracker et;
priv_p priv = (priv_p )dev->si_drv1;
struct mbuf *m;
int error = 0;
@ -469,7 +472,9 @@ ngdwrite(struct cdev *dev, struct uio *uio, int flag)
if ((m = m_uiotombuf(uio, M_NOWAIT, 0, 0, M_PKTHDR)) == NULL)
return (ENOBUFS);
NET_EPOCH_ENTER(et);
NG_SEND_DATA_ONLY(error, priv->hook, m);
NET_EPOCH_EXIT(et);
return (error);
}