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In nfs_link(), check for a cross-device mount *before* looking

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in the v_data field.
Obtained from: Charles Hannum, via Frank van der Linden <frank@wins.uva.nl>
This commit is contained in:
Kirk McKusick 1998-09-29 23:39:37 +00:00
parent d25ad74791
commit b5cf6d7984
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=39794
2 changed files with 6 additions and 4 deletions
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5
sys/nfs/nfs_vnops.c
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_vnops.c 8.16 (Berkeley) 5/27/95
* $Id: nfs_vnops.c,v 1.106 1998/08/13 08:09:08 dfr Exp $
* $Id: nfs_vnops.c,v 1.108 1998/09/29 23:29:48 mckusick Exp $
*/
@ -1700,7 +1700,7 @@ nfs_link(ap)
caddr_t bpos, dpos, cp2;
int error = 0, wccflag = NFSV3_WCCRATTR, attrflag = 0;
struct mbuf *mreq, *mrep, *md, *mb, *mb2;
int v3 = NFS_ISV3(vp);
int v3;
if (vp->v_mount != tdvp->v_mount) {
VOP_ABORTOP(tdvp, cnp);
@ -1715,6 +1715,7 @@ nfs_link(ap)
*/
VOP_FSYNC(vp, cnp->cn_cred, MNT_WAIT, cnp->cn_proc);
v3 = NFS_ISV3(vp);
nfsstats.rpccnt[NFSPROC_LINK]++;
nfsm_reqhead(vp, NFSPROC_LINK,
NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));

5
sys/nfsclient/nfs_vnops.c
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_vnops.c 8.16 (Berkeley) 5/27/95
* $Id: nfs_vnops.c,v 1.106 1998/08/13 08:09:08 dfr Exp $
* $Id: nfs_vnops.c,v 1.108 1998/09/29 23:29:48 mckusick Exp $
*/
@ -1700,7 +1700,7 @@ nfs_link(ap)
caddr_t bpos, dpos, cp2;
int error = 0, wccflag = NFSV3_WCCRATTR, attrflag = 0;
struct mbuf *mreq, *mrep, *md, *mb, *mb2;
int v3 = NFS_ISV3(vp);
int v3;
if (vp->v_mount != tdvp->v_mount) {
VOP_ABORTOP(tdvp, cnp);
@ -1715,6 +1715,7 @@ nfs_link(ap)
*/
VOP_FSYNC(vp, cnp->cn_cred, MNT_WAIT, cnp->cn_proc);
v3 = NFS_ISV3(vp);
nfsstats.rpccnt[NFSPROC_LINK]++;
nfsm_reqhead(vp, NFSPROC_LINK,
NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));