xpmem: Fix deadlock in xpmem_remove_process_memory_range()

This reverts commit 2fe5c8de2e.

Change-Id: I8ec84f654aeee7cf83603abb2aca5e90b735e977

test/xpmem/go_test.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/bash
+
+USELTP=0
+USEOSTEST=0
+
+XPMEM_DIR=$HOME/usr
+XPMEM_BUILD_DIR=/home/satoken/xpmem
+
+. ../common.sh
+
+sudo insmod ${XPMEM_DIR}/lib/modules/`uname -r`/xpmem.ko
+sudo chmod og+rw /dev/xpmem
+
+echo "*** XPMEM_TESTSUITE start *******************************"
+cwd=`pwd`
+cd ${XPMEM_BUILD_DIR}/test
+${cwd}/mc_run.sh
+cd ${cwd}
+
+# xpmem basic test
+${MCEXEC} ./XTP_001
+${MCEXEC} ./XTP_002
+${MCEXEC} ./XTP_003
+${MCEXEC} ./XTP_004
+${MCEXEC} ./XTP_005
+${MCEXEC} ./XTP_006
+sleep 3
+${MCEXEC} ./XTP_007
+
+${MCEXEC} ./XTP_901
+${MCEXEC} ./XTP_902
+${MCEXEC} ./XTP_903
+${MCEXEC} ./XTP_904
+${MCEXEC} ./XTP_905
+
+sudo rmmod xpmem.ko