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vhold() our vnode while checking the remote side.

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This is belived to be the only place where a soft reference to a vnode
is held with no sort of hard reference, consequently this change should
allow us to free(9) vnodes from the freelist after properly cleaning
them up.

Reviewed by:	dillon
This commit is contained in:
phk 2002-03-08 13:43:43 +00:00
parent 0a97605a6c
commit 0b8d3eb375
1 changed files with 3 additions and 0 deletions
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3
sys/nfsclient/nfs_vnops.c
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@ -776,6 +776,7 @@ nfs_lookup(struct vop_lookup_args *ap)
return (error);
}
vhold(*vpp);
newvp = *vpp;
vpid = newvp->v_id;
/*
@ -809,6 +810,7 @@ nfs_lookup(struct vop_lookup_args *ap)
if (cnp->cn_nameiop != LOOKUP &&
(flags & ISLASTCN))
cnp->cn_flags |= SAVENAME;
vdrop(newvp);
return (0);
}
cache_purge(newvp);
@ -817,6 +819,7 @@ nfs_lookup(struct vop_lookup_args *ap)
if (lockparent && dvp != newvp && (flags & ISLASTCN))
VOP_UNLOCK(dvp, 0, td);
}
vdrop(newvp);
error = vn_lock(dvp, LK_EXCLUSIVE, td);
*vpp = NULLVP;
if (error) {