Author: zec
Date: Thu Sep 17 11:03:37 2009
New Revision: 197267
URL: http://svn.freebsd.org/changeset/base/197267
Log:
MFC r197176:
Lock the ifnet list while iterating over it.
Submitted by: julian
MFC after: 3 days
Approved by: re (kensmith)
Modified:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/compat/linux/linux_ioctl.c
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/compat/linux/linux_ioctl.c
==============================================================================
--- stable/8/sys/compat/linux/linux_ioctl.c Thu Sep 17 06:31:59 2009
(r197266)
+++ stable/8/sys/compat/linux/linux_ioctl.c Thu Sep 17 11:03:37 2009
(r197267)
@@ -2152,6 +2152,7 @@ linux_ifconf(struct thread *td, struct i
/* handle the 'request buffer size' case */
if (ifc.ifc_buf == PTROUT(NULL)) {
ifc.ifc_len = 0;
+ IFNET_RLOCK();
TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
struct sockaddr *sa = ifa->ifa_addr;
@@ -2159,6 +2160,7 @@ linux_ifconf(struct thread *td, struct i
ifc.ifc_len += sizeof(ifr);
}
}
+ IFNET_RUNLOCK();
error = copyout(&ifc, uifc, sizeof(ifc));
CURVNET_RESTORE();
return (error);
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