D30340.id89449.diff
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	Index: sys/kern/kern_ktrace.c
	===================================================================
	--- sys/kern/kern_ktrace.c
	+++ sys/kern/kern_ktrace.c
	@@ -699,8 +699,7 @@
	}

	void
	-ktrnamei(path)
	- char *path;
	+ktrnamei(const char *path)
	{
	struct ktr_request *req;
	int namelen;
	@@ -1018,7 +1017,6 @@
	return (EINVAL);

	kiop = NULL;
	- ktrace_enter(td);
	if (ops != KTROP_CLEAR) {
	/*
	* an operation which requires a file argument.
	@@ -1026,24 +1024,23 @@
	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, uap->fname, td);
	flags = FREAD \| FWRITE \| O_NOFOLLOW;
	error = vn_open(&nd, &flags, 0, NULL);
	- if (error) {
	- ktrace_exit(td);
	+ if (error)
	return (error);
	- }
	NDFREE(&nd, NDF_ONLY_PNBUF);
	vp = nd.ni_vp;
	VOP_UNLOCK(vp);
	if (vp->v_type != VREG) {
	- (void) vn_close(vp, FREAD\|FWRITE, td->td_ucred, td);
	- ktrace_exit(td);
	+ (void)vn_close(vp, FREAD\|FWRITE, td->td_ucred, td);
	return (EACCES);
	}
	kiop = ktr_io_params_alloc(td, vp);
	kiop->refs++;
	}
	+
	/*
	* Clear all uses of the tracefile.
	*/
	+ ktrace_enter(td);
	if (ops == KTROP_CLEARFILE) {
	restart:
	sx_slock(&allproc_lock);
	Index: sys/sys/ktrace.h
	===================================================================
	--- sys/sys/ktrace.h
	+++ sys/sys/ktrace.h
	@@ -269,7 +269,7 @@

	struct vnode ktr_get_tracevp(struct proc , bool);
	void ktr_io_params_free(struct ktr_io_params *);
	-void ktrnamei(char *);
	+void ktrnamei(const char *);
	void ktrcsw(int, int, const char *);
	void ktrpsig(int, sig_t, sigset_t *, int);
	void ktrfault(vm_offset_t, int);