Author: trociny
Date: Tue Feb 21 19:40:13 2012
New Revision: 231976
URL: http://svn.freebsd.org/changeset/base/231976
Log:
unp_connect() may use a shared lock on the vnode to fetch the socket.
Suggested by: jhb
Reviewed by: jhb, kib, rwatson
MFC after: 2 weeks
Modified:
head/sys/kern/uipc_usrreq.c
Modified: head/sys/kern/uipc_usrreq.c
==============================================================================
--- head/sys/kern/uipc_usrreq.c Tue Feb 21 19:35:59 2012 (r231975)
+++ head/sys/kern/uipc_usrreq.c Tue Feb 21 19:40:13 2012 (r231976)
@@ -1273,8 +1273,8 @@ unp_connect(struct socket *so, struct so
UNP_PCB_UNLOCK(unp);
sa = malloc(sizeof(struct sockaddr_un), M_SONAME, M_WAITOK);
- NDINIT(&nd, LOOKUP, MPSAFE | FOLLOW | LOCKLEAF, UIO_SYSSPACE, buf,
- td);
+ NDINIT(&nd, LOOKUP, MPSAFE | FOLLOW | LOCKSHARED | LOCKLEAF,
+ UIO_SYSSPACE, buf, td);
error = namei(&nd);
if (error)
vp = NULL;
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