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authorBoris Popov <bp@FreeBSD.org>2000-09-12 09:49:08 +0000
committerBoris Popov <bp@FreeBSD.org>2000-09-12 09:49:08 +0000
commit9ff5ce6baf165aeb3cb45dd7dd5a8dc9da4fc9d4 (patch)
treefae6f12194eaecdf98cf34bc698708c189f95c30 /sys/vm
parent6ce5d87513ba06f1e4f1a7b5bff3d336db96e163 (diff)
Notes
Diffstat (limited to 'sys/vm')
-rw-r--r--sys/vm/vm_mmap.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c
index 79b6b72e3618e..43d75a5629227 100644
--- a/sys/vm/vm_mmap.c
+++ b/sys/vm/vm_mmap.c
@@ -198,6 +198,7 @@ mmap(p, uap)
int disablexworkaround;
off_t pos;
struct vmspace *vms = p->p_vmspace;
+ vm_object_t obj;
addr = (vm_offset_t) uap->addr;
size = uap->len;
@@ -295,6 +296,14 @@ mmap(p, uap)
vp = (struct vnode *) fp->f_data;
if (vp->v_type != VREG && vp->v_type != VCHR)
return (EINVAL);
+ if (vp->v_type == VREG) {
+ /*
+ * Get the proper underlying object
+ */
+ if (VOP_GETVOBJECT(vp, &obj) != 0)
+ return (EINVAL);
+ vp = (struct vnode*)obj->handle;
+ }
/*
* XXX hack to handle use of /dev/zero to map anon memory (ala
* SunOS).