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Date: Fri, 25 Mar 2022 17:20:13 -0700
From: Daniel Latypov <dlatypov@...gle.com>
To: brendanhiggins@...gle.com, davidgow@...gle.com
Cc: linux-kernel@...r.kernel.org, kunit-dev@...glegroups.com,
linux-kselftest@...r.kernel.org, skhan@...uxfoundation.org,
Daniel Latypov <dlatypov@...gle.com>
Subject: [PATCH v2 2/2] kunit: split resource API impl from test.c into new resource.c
We've split out the declarations from include/kunit/test.h into
resource.h.
This patch splits out the definitions as well for consistency.
A side effect of this is git blame won't properly track history by
default, users need to run
$ git blame -L ,1 -C13 lib/kunit/resource.c
Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
---
lib/kunit/Makefile | 1 +
lib/kunit/resource.c | 126 +++++++++++++++++++++++++++++++++++++++++++
lib/kunit/test.c | 116 +--------------------------------------
3 files changed, 128 insertions(+), 115 deletions(-)
create mode 100644 lib/kunit/resource.c
diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile
index c49f4ffb6273..29aff6562b42 100644
--- a/lib/kunit/Makefile
+++ b/lib/kunit/Makefile
@@ -1,6 +1,7 @@
obj-$(CONFIG_KUNIT) += kunit.o
kunit-objs += test.o \
+ resource.o \
string-stream.o \
assert.o \
try-catch.o \
diff --git a/lib/kunit/resource.c b/lib/kunit/resource.c
new file mode 100644
index 000000000000..b8bced246217
--- /dev/null
+++ b/lib/kunit/resource.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KUnit resource API for test managed resources (allocations, etc.).
+ *
+ * Copyright (C) 2022, Google LLC.
+ * Author: Daniel Latypov <dlatypov@...gle.com>
+ */
+
+#include <kunit/resource.h>
+#include <kunit/test.h>
+#include <linux/kref.h>
+
+/*
+ * Used for static resources and when a kunit_resource * has been created by
+ * kunit_alloc_resource(). When an init function is supplied, @data is passed
+ * into the init function; otherwise, we simply set the resource data field to
+ * the data value passed in.
+ */
+int kunit_add_resource(struct kunit *test,
+ kunit_resource_init_t init,
+ kunit_resource_free_t free,
+ struct kunit_resource *res,
+ void *data)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ res->free = free;
+ kref_init(&res->refcount);
+
+ if (init) {
+ ret = init(res, data);
+ if (ret)
+ return ret;
+ } else {
+ res->data = data;
+ }
+
+ spin_lock_irqsave(&test->lock, flags);
+ list_add_tail(&res->node, &test->resources);
+ /* refcount for list is established by kref_init() */
+ spin_unlock_irqrestore(&test->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(kunit_add_resource);
+
+int kunit_add_named_resource(struct kunit *test,
+ kunit_resource_init_t init,
+ kunit_resource_free_t free,
+ struct kunit_resource *res,
+ const char *name,
+ void *data)
+{
+ struct kunit_resource *existing;
+
+ if (!name)
+ return -EINVAL;
+
+ existing = kunit_find_named_resource(test, name);
+ if (existing) {
+ kunit_put_resource(existing);
+ return -EEXIST;
+ }
+
+ res->name = name;
+
+ return kunit_add_resource(test, init, free, res, data);
+}
+EXPORT_SYMBOL_GPL(kunit_add_named_resource);
+
+struct kunit_resource *kunit_alloc_and_get_resource(struct kunit *test,
+ kunit_resource_init_t init,
+ kunit_resource_free_t free,
+ gfp_t internal_gfp,
+ void *data)
+{
+ struct kunit_resource *res;
+ int ret;
+
+ res = kzalloc(sizeof(*res), internal_gfp);
+ if (!res)
+ return NULL;
+
+ ret = kunit_add_resource(test, init, free, res, data);
+ if (!ret) {
+ /*
+ * bump refcount for get; kunit_resource_put() should be called
+ * when done.
+ */
+ kunit_get_resource(res);
+ return res;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(kunit_alloc_and_get_resource);
+
+void kunit_remove_resource(struct kunit *test, struct kunit_resource *res)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&test->lock, flags);
+ list_del(&res->node);
+ spin_unlock_irqrestore(&test->lock, flags);
+ kunit_put_resource(res);
+}
+EXPORT_SYMBOL_GPL(kunit_remove_resource);
+
+int kunit_destroy_resource(struct kunit *test, kunit_resource_match_t match,
+ void *match_data)
+{
+ struct kunit_resource *res = kunit_find_resource(test, match,
+ match_data);
+
+ if (!res)
+ return -ENOENT;
+
+ kunit_remove_resource(test, res);
+
+ /* We have a reference also via _find(); drop it. */
+ kunit_put_resource(res);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(kunit_destroy_resource);
+
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 3bca3bf5c15b..0f66c13d126e 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -6,10 +6,10 @@
* Author: Brendan Higgins <brendanhiggins@...gle.com>
*/
+#include <kunit/resource.h>
#include <kunit/test.h>
#include <kunit/test-bug.h>
#include <linux/kernel.h>
-#include <linux/kref.h>
#include <linux/moduleparam.h>
#include <linux/sched/debug.h>
#include <linux/sched.h>
@@ -592,120 +592,6 @@ void __kunit_test_suites_exit(struct kunit_suite **suites)
}
EXPORT_SYMBOL_GPL(__kunit_test_suites_exit);
-/*
- * Used for static resources and when a kunit_resource * has been created by
- * kunit_alloc_resource(). When an init function is supplied, @data is passed
- * into the init function; otherwise, we simply set the resource data field to
- * the data value passed in.
- */
-int kunit_add_resource(struct kunit *test,
- kunit_resource_init_t init,
- kunit_resource_free_t free,
- struct kunit_resource *res,
- void *data)
-{
- int ret = 0;
- unsigned long flags;
-
- res->free = free;
- kref_init(&res->refcount);
-
- if (init) {
- ret = init(res, data);
- if (ret)
- return ret;
- } else {
- res->data = data;
- }
-
- spin_lock_irqsave(&test->lock, flags);
- list_add_tail(&res->node, &test->resources);
- /* refcount for list is established by kref_init() */
- spin_unlock_irqrestore(&test->lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(kunit_add_resource);
-
-int kunit_add_named_resource(struct kunit *test,
- kunit_resource_init_t init,
- kunit_resource_free_t free,
- struct kunit_resource *res,
- const char *name,
- void *data)
-{
- struct kunit_resource *existing;
-
- if (!name)
- return -EINVAL;
-
- existing = kunit_find_named_resource(test, name);
- if (existing) {
- kunit_put_resource(existing);
- return -EEXIST;
- }
-
- res->name = name;
-
- return kunit_add_resource(test, init, free, res, data);
-}
-EXPORT_SYMBOL_GPL(kunit_add_named_resource);
-
-struct kunit_resource *kunit_alloc_and_get_resource(struct kunit *test,
- kunit_resource_init_t init,
- kunit_resource_free_t free,
- gfp_t internal_gfp,
- void *data)
-{
- struct kunit_resource *res;
- int ret;
-
- res = kzalloc(sizeof(*res), internal_gfp);
- if (!res)
- return NULL;
-
- ret = kunit_add_resource(test, init, free, res, data);
- if (!ret) {
- /*
- * bump refcount for get; kunit_resource_put() should be called
- * when done.
- */
- kunit_get_resource(res);
- return res;
- }
- return NULL;
-}
-EXPORT_SYMBOL_GPL(kunit_alloc_and_get_resource);
-
-void kunit_remove_resource(struct kunit *test, struct kunit_resource *res)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&test->lock, flags);
- list_del(&res->node);
- spin_unlock_irqrestore(&test->lock, flags);
- kunit_put_resource(res);
-}
-EXPORT_SYMBOL_GPL(kunit_remove_resource);
-
-int kunit_destroy_resource(struct kunit *test, kunit_resource_match_t match,
- void *match_data)
-{
- struct kunit_resource *res = kunit_find_resource(test, match,
- match_data);
-
- if (!res)
- return -ENOENT;
-
- kunit_remove_resource(test, res);
-
- /* We have a reference also via _find(); drop it. */
- kunit_put_resource(res);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(kunit_destroy_resource);
-
struct kunit_kmalloc_array_params {
size_t n;
size_t size;
--
2.35.1.1021.g381101b075-goog
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