diff --git a/sys/compat/linuxkpi/common/src/linux_shrinker.c b/sys/compat/linuxkpi/common/src/linux_shrinker.c
index b66316c22013..b48e491a4e2f 100644
--- a/sys/compat/linuxkpi/common/src/linux_shrinker.c
+++ b/sys/compat/linuxkpi/common/src/linux_shrinker.c
@@ -1,127 +1,126 @@
 /*-
  * Copyright (c) 2020 Emmanuel Vadot <manu@FreeBSD.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  * $FreeBSD$
  */
 
 
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
 #include <sys/queue.h>
 #include <sys/eventhandler.h>
-#include <sys/mutex.h>
+#include <sys/sx.h>
 
 #include <linux/compat.h>
 #include <linux/shrinker.h>
 
 TAILQ_HEAD(, shrinker) lkpi_shrinkers = TAILQ_HEAD_INITIALIZER(lkpi_shrinkers);
-static struct mtx mtx_shrinker;
+static struct sx sx_shrinker;
 
 int
 linuxkpi_register_shrinker(struct shrinker *s)
 {
 
 	KASSERT(s != NULL, ("NULL shrinker"));
 	KASSERT(s->count_objects != NULL, ("NULL shrinker"));
 	KASSERT(s->scan_objects != NULL, ("NULL shrinker"));
-	mtx_lock(&mtx_shrinker);
+	sx_xlock(&sx_shrinker);
 	TAILQ_INSERT_TAIL(&lkpi_shrinkers, s, next);
-	mtx_unlock(&mtx_shrinker);
+	sx_xunlock(&sx_shrinker);
 	return (0);
 }
 
 void
 linuxkpi_unregister_shrinker(struct shrinker *s)
 {
 
-	mtx_lock(&mtx_shrinker);
+	sx_xlock(&sx_shrinker);
 	TAILQ_REMOVE(&lkpi_shrinkers, s, next);
-	mtx_unlock(&mtx_shrinker);
+	sx_xunlock(&sx_shrinker);
 }
 
 #define	SHRINKER_BATCH	512
 
 static void
 shrinker_shrink(struct shrinker *s)
 {
 	struct shrink_control sc;
 	unsigned long can_free;
 	unsigned long batch;
 	unsigned long scanned = 0;
 	unsigned long ret;
 
 	can_free = s->count_objects(s, &sc);
 	if (can_free <= 0)
 		return;
 
 	batch = s->batch ? s->batch : SHRINKER_BATCH;
 	while (scanned <= can_free) {
 		sc.nr_to_scan = batch;
 		ret = s->scan_objects(s, &sc);
 		if (ret == SHRINK_STOP)
 			break;
 		scanned += batch;
 	}
 }
 
 static void
 linuxkpi_vm_lowmem(void *arg __unused)
 {
 	struct shrinker *s;
 
-	linux_set_current(curthread);
-	mtx_lock(&mtx_shrinker);
+	sx_xlock(&sx_shrinker);
 	TAILQ_FOREACH(s, &lkpi_shrinkers, next) {
 		shrinker_shrink(s);
 	}
-	mtx_unlock(&mtx_shrinker);
+	sx_xunlock(&sx_shrinker);
 }
 
 static eventhandler_tag lowmem_tag;
 
 static void
 linuxkpi_sysinit_shrinker(void *arg __unused)
 {
 
-	mtx_init(&mtx_shrinker, "lkpi-shrinker", NULL, MTX_DEF);
+	sx_init(&sx_shrinker, "lkpi-shrinker");
 	lowmem_tag = EVENTHANDLER_REGISTER(vm_lowmem, linuxkpi_vm_lowmem,
 	    NULL, EVENTHANDLER_PRI_FIRST);
 }
 
 static void
 linuxkpi_sysuninit_shrinker(void *arg __unused)
 {
 
-	mtx_destroy(&mtx_shrinker);
+	sx_destroy(&sx_shrinker);
 	EVENTHANDLER_DEREGISTER(vm_lowmem, lowmem_tag);
 }
 
 SYSINIT(linuxkpi_shrinker, SI_SUB_DRIVERS, SI_ORDER_ANY,
     linuxkpi_sysinit_shrinker, NULL);
 SYSUNINIT(linuxkpi_shrinker, SI_SUB_DRIVERS, SI_ORDER_ANY,
     linuxkpi_sysuninit_shrinker, NULL);