lib/test_vmalloc.c: Add test cases for kvfree_rcu() (da4fc00a) · Commits · 戴 / test

lib/test_vmalloc.c

+95 −8

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		#include <linux/delay.h>
		#include <linux/rwsem.h>
		#include <linux/mm.h>
		#include <linux/rcupdate.h>
		#include <linux/slab.h>

		#define __param(type, name, init, msg) \
		static type name = init; \
		@@ -43,6 +45,10 @@ __param(int, run_test_mask, INT_MAX,
		"\t\tid: 32, name: random_size_align_alloc_test\n"
		"\t\tid: 64, name: align_shift_alloc_test\n"
		"\t\tid: 128, name: pcpu_alloc_test\n"
		"\t\tid: 256, name: kvfree_rcu_1_arg_vmalloc_test\n"
		"\t\tid: 512, name: kvfree_rcu_2_arg_vmalloc_test\n"
		"\t\tid: 1024, name: kvfree_rcu_1_arg_slab_test\n"
		"\t\tid: 2048, name: kvfree_rcu_2_arg_slab_test\n"
		/* Add a new test case description here. */
		);

		@@ -316,6 +322,83 @@ pcpu_alloc_test(void)
		return rv;
		}

		struct test_kvfree_rcu {
		struct rcu_head rcu;
		unsigned char array[20];
		};

		static int
		kvfree_rcu_1_arg_vmalloc_test(void)
		{
		struct test_kvfree_rcu *p;
		int i;

		for (i = 0; i < test_loop_count; i++) {
		p = vmalloc(1 * PAGE_SIZE);
		if (!p)
		return -1;

		p->array[0] = 'a';
		kvfree_rcu(p);
		}

		return 0;
		}

		static int
		kvfree_rcu_2_arg_vmalloc_test(void)
		{
		struct test_kvfree_rcu *p;
		int i;

		for (i = 0; i < test_loop_count; i++) {
		p = vmalloc(1 * PAGE_SIZE);
		if (!p)
		return -1;

		p->array[0] = 'a';
		kvfree_rcu(p, rcu);
		}

		return 0;
		}

		static int
		kvfree_rcu_1_arg_slab_test(void)
		{
		struct test_kvfree_rcu *p;
		int i;

		for (i = 0; i < test_loop_count; i++) {
		p = kmalloc(sizeof(*p), GFP_KERNEL);
		if (!p)
		return -1;

		p->array[0] = 'a';
		kvfree_rcu(p);
		}

		return 0;
		}

		static int
		kvfree_rcu_2_arg_slab_test(void)
		{
		struct test_kvfree_rcu *p;
		int i;

		for (i = 0; i < test_loop_count; i++) {
		p = kmalloc(sizeof(*p), GFP_KERNEL);
		if (!p)
		return -1;

		p->array[0] = 'a';
		kvfree_rcu(p, rcu);
		}

		return 0;
		}

		struct test_case_desc {
		const char *test_name;
		int (*test_func)(void);
		@@ -330,6 +413,10 @@ static struct test_case_desc test_case_array[] = {
		{ "random_size_align_alloc_test", random_size_align_alloc_test },
		{ "align_shift_alloc_test", align_shift_alloc_test },
		{ "pcpu_alloc_test", pcpu_alloc_test },
		{ "kvfree_rcu_1_arg_vmalloc_test", kvfree_rcu_1_arg_vmalloc_test },
		{ "kvfree_rcu_2_arg_vmalloc_test", kvfree_rcu_2_arg_vmalloc_test },
		{ "kvfree_rcu_1_arg_slab_test", kvfree_rcu_1_arg_slab_test },
		{ "kvfree_rcu_2_arg_slab_test", kvfree_rcu_2_arg_slab_test },
		/* Add a new test case here. */
		};

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