In vfs_hash_get(): mount point should never be changed

so explicitly constify the mp parameter.

Reviewed by:	phk

2 files changed, 3 insertions, 3 deletions

diff --git a/sys/kern/vfs_hash.c b/sys/kern/vfs_hash.c
index 5523c56..80c2dc5 100644
--- a/sys/kern/vfs_hash.c
+++ b/sys/kern/vfs_hash.c
@@ -55,14 +55,14 @@ vfs_hashinit(void *dummy __unused)
 SYSINIT(vfs_hash, SI_SUB_VFS, SI_ORDER_SECOND, vfs_hashinit, NULL)
 
 static struct vfs_hash_head *
-vfs_hash_index(struct mount *mp, u_int hash)
+vfs_hash_index(const struct mount *mp, u_int hash)
 {
 
 	return(&vfs_hash_tbl[(hash + mp->mnt_hashseed) & vfs_hash_mask]);
 }
 
 int
-vfs_hash_get(struct mount *mp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg)
+vfs_hash_get(const struct mount *mp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg)
 {
 	struct vnode *vp;
 	int error;
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
index dd51d92..ed027a7 100644
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -719,7 +719,7 @@ extern struct vop_vector default_vnodeops;
 /* vfs_hash.c */
 typedef int vfs_hash_cmp_t(struct vnode *vp, void *arg);
 
-int vfs_hash_get(struct mount *mp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg);
+int vfs_hash_get(const struct mount *mp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg);
 int vfs_hash_insert(struct vnode *vp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg);
 void vfs_hash_rehash(struct vnode *vp, u_int hash);
 void vfs_hash_remove(struct vnode *vp);