kern/168077: commit references a PR

dfilter service dfilter at FreeBSD.ORG
Sat May 4 17:00:01 UTC 2013


The following reply was made to PR kern/168077; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/168077: commit references a PR
Date: Sat,  4 May 2013 16:56:03 +0000 (UTC)

 Author: davide
 Date: Sat May  4 16:55:48 2013
 New Revision: 250243
 URL: http://svnweb.freebsd.org/changeset/base/250243
 
 Log:
   If the kernel is compiled with VMIMAGE support, the first attempt of
   mounting smbfs share will cause a panic. Fix setting setting/restoring
   vnet context when needed.
   
   PR:		kern/168077
   Submitted by:	dteske
 
 Modified:
   head/sys/netsmb/smb_trantcp.c
 
 Modified: head/sys/netsmb/smb_trantcp.c
 ==============================================================================
 --- head/sys/netsmb/smb_trantcp.c	Sat May  4 16:41:14 2013	(r250242)
 +++ head/sys/netsmb/smb_trantcp.c	Sat May  4 16:55:48 2013	(r250243)
 @@ -46,6 +46,7 @@ __FBSDID("$FreeBSD$");
  
  #include <net/if.h>
  #include <net/route.h>
 +#include <net/vnet.h>
  
  #include <netinet/in.h>
  #include <netinet/tcp.h>
 @@ -79,13 +80,17 @@ static int
  nb_setsockopt_int(struct socket *so, int level, int name, int val)
  {
  	struct sockopt sopt;
 +	int error;
  
  	bzero(&sopt, sizeof(sopt));
  	sopt.sopt_level = level;
  	sopt.sopt_name = name;
  	sopt.sopt_val = &val;
  	sopt.sopt_valsize = sizeof(val);
 -	return sosetopt(so, &sopt);
 +	CURVNET_SET(so->so_vnet);
 +	error = sosetopt(so, &sopt);
 +	CURVNET_RESTORE();
 +	return error;
  }
  
  static int
 @@ -299,8 +304,10 @@ nbssn_recvhdr(struct nbpcb *nbp, int *le
  	auio.uio_offset = 0;
  	auio.uio_resid = sizeof(len);
  	auio.uio_td = td;
 +	CURVNET_SET(so->so_vnet);
  	error = soreceive(so, (struct sockaddr **)NULL, &auio,
  	    (struct mbuf **)NULL, (struct mbuf **)NULL, &flags);
 +	CURVNET_RESTORE();
  	if (error)
  		return error;
  	if (auio.uio_resid > 0) {
 @@ -384,8 +391,10 @@ nbssn_recv(struct nbpcb *nbp, struct mbu
  			 */
  			do {
  				rcvflg = MSG_WAITALL;
 +				CURVNET_SET(so->so_vnet);
  				error = soreceive(so, (struct sockaddr **)NULL,
  				    &auio, &tm, (struct mbuf **)NULL, &rcvflg);
 +				CURVNET_RESTORE();
  			} while (error == EWOULDBLOCK || error == EINTR ||
  				 error == ERESTART);
  			if (error)
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