D22739.diff
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	Index: head/sys/tools/vnode_if.awk
	===================================================================
	--- head/sys/tools/vnode_if.awk
	+++ head/sys/tools/vnode_if.awk
	@@ -363,16 +363,20 @@
	printc("\tVNASSERT(a->a_gen.a_desc == &" name "_desc, a->a_" args[0]",");
	printc("\t (\"Wrong a_desc in " name "(%p, %p)\", a->a_" args[0]", a));");
	printc("\tVNASSERT(vop != NULL, a->a_" args[0]", (\"No "name"(%p, %p)\", a->a_" args[0]", a));")
	- printc("\tSDT_PROBE2(vfs, vop, " name ", entry, a->a_" args[0] ", a);\n");
	- for (i = 0; i < numargs; ++i)
	- add_debug_code(name, args[i], "Entry", "\t");
	printc("\tKTR_START" ctrstr);
	add_pre(name);
	- printc("\tif (vop->"name" != NULL)")
	+ for (i = 0; i < numargs; ++i)
	+ add_debug_code(name, args[i], "Entry", "\t");
	+ printc("\tif (__predict_true(!SDT_PROBES_ENABLED() && vop->"name" != NULL)) {");
	printc("\t\trc = vop->"name"(a);")
	- printc("\telse")
	- printc("\t\trc = vop->vop_bypass(&a->a_gen);")
	- printc("\tSDT_PROBE3(vfs, vop, " name ", return, a->a_" args[0] ", a, rc);\n");
	+ printc("\t} else {")
	+ printc("\t\tSDT_PROBE2(vfs, vop, " name ", entry, a->a_" args[0] ", a);");
	+ printc("\t\tif (vop->"name" != NULL)")
	+ printc("\t\t\trc = vop->"name"(a);")
	+ printc("\t\telse")
	+ printc("\t\t\trc = vop->vop_bypass(&a->a_gen);")
	+ printc("\t\tSDT_PROBE3(vfs, vop, " name ", return, a->a_" args[0] ", a, rc);");
	+ printc("\t}")
	printc("\tif (rc == 0) {");
	for (i = 0; i < numargs; ++i)
	add_debug_code(name, args[i], "OK", "\t\t");