KVM: selftests: Rename perf_test_util.[ch] to memstress.[ch]

Rename the perf_test_util.[ch] files to memstress.[ch]. Symbols are
renamed in the following commit to reduce the amount of churn here in
hopes of playiing nice with git's file rename detection.

The name "memstress" was chosen to better describe the functionality
proveded by this library, which is to create and run a VM that
reads/writes to guest memory on all vCPUs in parallel.

"memstress" also contains the same number of chracters as "perf_test",
making it a drop-in replacement in symbols, e.g. function names, without
impacting line lengths. Also the lack of underscore between "mem" and
"stress" makes it clear "memstress" is a noun.

Signed-off-by: David Matlack <dmatlack@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20221012165729.3505266-2-dmatlack@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

8 files changed, 14 insertions, 14 deletions

diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 0172eb6cb6ee..a00253b79040 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -43,7 +43,7 @@ LIBKVM += lib/elf.c
 LIBKVM += lib/guest_modes.c
 LIBKVM += lib/io.c
 LIBKVM += lib/kvm_util.c
-LIBKVM += lib/perf_test_util.c
+LIBKVM += lib/memstress.c
 LIBKVM += lib/rbtree.c
 LIBKVM += lib/sparsebit.c
 LIBKVM += lib/test_util.c
@@ -52,7 +52,7 @@ LIBKVM_STRING += lib/string_override.c
 
 LIBKVM_x86_64 += lib/x86_64/apic.c
 LIBKVM_x86_64 += lib/x86_64/handlers.S
-LIBKVM_x86_64 += lib/x86_64/perf_test_util.c
+LIBKVM_x86_64 += lib/x86_64/memstress.c
 LIBKVM_x86_64 += lib/x86_64/processor.c
 LIBKVM_x86_64 += lib/x86_64/svm.c
 LIBKVM_x86_64 += lib/x86_64/ucall.c
diff --git a/tools/testing/selftests/kvm/access_tracking_perf_test.c b/tools/testing/selftests/kvm/access_tracking_perf_test.c
index c0cdf07de147..534d18cc4a6a 100644
--- a/tools/testing/selftests/kvm/access_tracking_perf_test.c
+++ b/tools/testing/selftests/kvm/access_tracking_perf_test.c
@@ -44,7 +44,7 @@
 
 #include "kvm_util.h"
 #include "test_util.h"
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "guest_modes.h"
 
 /* Global variable used to synchronize all of the vCPU threads. */
diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c
index 0c98181fa248..37501e83d1d8 100644
--- a/tools/testing/selftests/kvm/demand_paging_test.c
+++ b/tools/testing/selftests/kvm/demand_paging_test.c
@@ -20,7 +20,7 @@
 
 #include "kvm_util.h"
 #include "test_util.h"
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "guest_modes.h"
 
 #ifdef __NR_userfaultfd
diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
index 47cbda3580fd..d2bac493da5d 100644
--- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -16,7 +16,7 @@
 
 #include "kvm_util.h"
 #include "test_util.h"
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "guest_modes.h"
 
 #ifdef __aarch64__
diff --git a/tools/testing/selftests/kvm/include/perf_test_util.h b/tools/testing/selftests/kvm/include/memstress.h
index 75ca679059dc..64a523e06125 100644
--- a/tools/testing/selftests/kvm/include/perf_test_util.h
+++ b/tools/testing/selftests/kvm/include/memstress.h
@@ -1,12 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * tools/testing/selftests/kvm/include/perf_test_util.h
+ * tools/testing/selftests/kvm/include/memstress.h
  *
  * Copyright (C) 2020, Google LLC.
  */
 
-#ifndef SELFTEST_KVM_PERF_TEST_UTIL_H
-#define SELFTEST_KVM_PERF_TEST_UTIL_H
+#ifndef SELFTEST_KVM_MEMSTRESS_H
+#define SELFTEST_KVM_MEMSTRESS_H
 
 #include <pthread.h>
 
@@ -69,4 +69,4 @@ void perf_test_guest_code(uint32_t vcpu_id);
 uint64_t perf_test_nested_pages(int nr_vcpus);
 void perf_test_setup_nested(struct kvm_vm *vm, int nr_vcpus, struct kvm_vcpu *vcpus[]);
 
-#endif /* SELFTEST_KVM_PERF_TEST_UTIL_H */
+#endif /* SELFTEST_KVM_MEMSTRESS_H */
diff --git a/tools/testing/selftests/kvm/lib/perf_test_util.c b/tools/testing/selftests/kvm/lib/memstress.c
index 3a9a3ea01a97..72f88e5851dd 100644
--- a/tools/testing/selftests/kvm/lib/perf_test_util.c
+++ b/tools/testing/selftests/kvm/lib/memstress.c
@@ -7,7 +7,7 @@
 #include <inttypes.h>
 
 #include "kvm_util.h"
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "processor.h"
 
 struct perf_test_args perf_test_args;
diff --git a/tools/testing/selftests/kvm/lib/x86_64/perf_test_util.c b/tools/testing/selftests/kvm/lib/x86_64/memstress.c
index 0f344a7c89c4..0bb717ac2cc5 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/perf_test_util.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/memstress.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * x86_64-specific extensions to perf_test_util.c.
+ * x86_64-specific extensions to memstress.c.
  *
  * Copyright (C) 2022, Google, Inc.
  */
@@ -11,7 +11,7 @@
 
 #include "test_util.h"
 #include "kvm_util.h"
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "processor.h"
 #include "vmx.h"
 
diff --git a/tools/testing/selftests/kvm/memslot_modification_stress_test.c b/tools/testing/selftests/kvm/memslot_modification_stress_test.c
index 4bdfc910ba4d..0490bd4606e5 100644
--- a/tools/testing/selftests/kvm/memslot_modification_stress_test.c
+++ b/tools/testing/selftests/kvm/memslot_modification_stress_test.c
@@ -21,7 +21,7 @@
 #include <linux/bitops.h>
 #include <linux/userfaultfd.h>
 
-#include "perf_test_util.h"
+#include "memstress.h"
 #include "processor.h"
 #include "test_util.h"
 #include "guest_modes.h"
@@ -72,7 +72,7 @@ static void add_remove_memslot(struct kvm_vm *vm, useconds_t delay,
 	int i;
 
 	/*
-	 * Add the dummy memslot just below the perf_test_util memslot, which is
+	 * Add the dummy memslot just below the memstress memslot, which is
 	 * at the top of the guest physical address space.
 	 */
 	gpa = perf_test_args.gpa - pages * vm->page_size;