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From: Matthew Wilcox <willy@infradead.org>
To: linux-kernel@vger.kernel.org
Cc: Matthew Wilcox <willy@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 24/26] test_ida: check_ida_destroy and check_ida_alloc
Date: Thu, 21 Jun 2018 14:28:33 -0700	[thread overview]
Message-ID: <20180621212835.5636-25-willy@infradead.org> (raw)
In-Reply-To: <20180621212835.5636-1-willy@infradead.org>

Move these tests from the userspace test-suite to the kernel test-suite.
Also convert check_ida_random to the new API.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
---
 lib/test_ida.c                      | 55 ++++++++++++++++++++++-
 tools/testing/radix-tree/idr-test.c | 70 ++---------------------------
 2 files changed, 58 insertions(+), 67 deletions(-)

diff --git a/lib/test_ida.c b/lib/test_ida.c
index 15e013800171..433cb8a69732 100644
--- a/lib/test_ida.c
+++ b/lib/test_ida.c
@@ -22,6 +22,58 @@ void ida_dump(struct ida *ida) { }
 	}								\
 } while (0)
 
+/*
+ * Straightforward checks that allocating and freeing IDs work.
+ */
+static void ida_check_alloc(struct ida *ida)
+{
+	int i, id;
+
+	for (i = 0; i < 10000; i++)
+		IDA_BUG_ON(ida, ida_alloc(ida, GFP_KERNEL) != i);
+
+	ida_free(ida, 20);
+	ida_free(ida, 21);
+	for (i = 0; i < 3; i++) {
+		id = ida_alloc(ida, GFP_KERNEL);
+		IDA_BUG_ON(ida, id < 0);
+		if (i == 2)
+			IDA_BUG_ON(ida, id != 10000);
+	}
+
+	for (i = 0; i < 5000; i++)
+		ida_free(ida, i);
+
+	IDA_BUG_ON(ida, ida_alloc_min(ida, 5000, GFP_KERNEL) != 10001);
+	ida_destroy(ida);
+
+	IDA_BUG_ON(ida, !ida_is_empty(ida));
+}
+
+/* Destroy an IDA with a single entry at @base */
+static void ida_check_destroy_1(struct ida *ida, unsigned int base)
+{
+	IDA_BUG_ON(ida, ida_alloc_min(ida, base, GFP_KERNEL) != base);
+	IDA_BUG_ON(ida, ida_is_empty(ida));
+	ida_destroy(ida);
+	IDA_BUG_ON(ida, !ida_is_empty(ida));
+}
+
+/* Check that ida_destroy and ida_is_empty work */
+static void ida_check_destroy(struct ida *ida)
+{
+	/* Destroy an already-empty IDA */
+	IDA_BUG_ON(ida, !ida_is_empty(ida));
+	ida_destroy(ida);
+	IDA_BUG_ON(ida, !ida_is_empty(ida));
+
+	ida_check_destroy_1(ida, 0);
+	ida_check_destroy_1(ida, 1);
+	ida_check_destroy_1(ida, 1023);
+	ida_check_destroy_1(ida, 1024);
+	ida_check_destroy_1(ida, 12345678);
+}
+
 /*
  * Check what happens when we fill a leaf and then delete it.  This may
  * discover mishandling of IDR_FREE.
@@ -71,7 +123,6 @@ static void ida_check_max(struct ida *ida)
 static void ida_check_conv(struct ida *ida)
 {
 	unsigned long i;
-	int id;
 
 	for (i = 0; i < IDA_BITMAP_BITS * 2; i += IDA_BITMAP_BITS) {
 		IDA_BUG_ON(ida, ida_alloc_min(ida, i + 1, GFP_KERNEL) != i + 1);
@@ -100,6 +151,8 @@ static int ida_checks(void)
 	DEFINE_IDA(ida);
 
 	IDA_BUG_ON(&ida, !ida_is_empty(&ida));
+	ida_check_alloc(&ida);
+	ida_check_destroy(&ida);
 	ida_check_leaf(&ida, 0);
 	ida_check_leaf(&ida, 1024);
 	ida_check_leaf(&ida, 1024 * 64);
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index f948e38b9a6b..052c0c4cc0f3 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -364,7 +364,6 @@ void ida_check_random(void)
 {
 	DEFINE_IDA(ida);
 	DECLARE_BITMAP(bitmap, 2048);
-	int id, err;
 	unsigned int i;
 	time_t s = time(NULL);
 
@@ -375,15 +374,11 @@ void ida_check_random(void)
 		int bit = i & 2047;
 		if (test_bit(bit, bitmap)) {
 			__clear_bit(bit, bitmap);
-			ida_remove(&ida, bit);
+			ida_free(&ida, bit);
 		} else {
 			__set_bit(bit, bitmap);
-			do {
-				ida_pre_get(&ida, GFP_KERNEL);
-				err = ida_get_new_above(&ida, bit, &id);
-			} while (err == -EAGAIN);
-			assert(!err);
-			assert(id == bit);
+			IDA_BUG_ON(&ida, ida_alloc_min(&ida, bit, GFP_KERNEL)
+					!= bit);
 		}
 	}
 	ida_destroy(&ida);
@@ -411,66 +406,9 @@ void ida_simple_get_remove_test(void)
 
 void user_ida_checks(void)
 {
-	DEFINE_IDA(ida);
-	int id;
-	unsigned long i;
-
 	radix_tree_cpu_dead(1);
-	ida_check_nomem();
-
-	for (i = 0; i < 10000; i++) {
-		assert(ida_pre_get(&ida, GFP_KERNEL));
-		assert(!ida_get_new(&ida, &id));
-		assert(id == i);
-	}
-
-	ida_remove(&ida, 20);
-	ida_remove(&ida, 21);
-	for (i = 0; i < 3; i++) {
-		assert(ida_pre_get(&ida, GFP_KERNEL));
-		assert(!ida_get_new(&ida, &id));
-		if (i == 2)
-			assert(id == 10000);
-	}
-
-	for (i = 0; i < 5000; i++)
-		ida_remove(&ida, i);
-
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 5000, &id));
-	assert(id == 10001);
-
-	ida_destroy(&ida);
-
-	assert(ida_is_empty(&ida));
-
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 1, &id));
-	assert(id == 1);
-
-	ida_remove(&ida, id);
-	assert(ida_is_empty(&ida));
-	ida_destroy(&ida);
-	assert(ida_is_empty(&ida));
-
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 1, &id));
-	ida_destroy(&ida);
-	assert(ida_is_empty(&ida));
-
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 1, &id));
-	assert(id == 1);
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 1025, &id));
-	assert(id == 1025);
-	assert(ida_pre_get(&ida, GFP_KERNEL));
-	assert(!ida_get_new_above(&ida, 10000, &id));
-	assert(id == 10000);
-	ida_remove(&ida, 1025);
-	ida_destroy(&ida);
-	assert(ida_is_empty(&ida));
 
+	ida_check_nomem();
 	ida_check_conv_user();
 	ida_check_random();
 	ida_simple_get_remove_test();
-- 
2.17.1


  parent reply	other threads:[~2018-06-21 21:31 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-21 21:28 [PATCH 00/26] New IDA API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 01/26] radix tree test suite: fix build Matthew Wilcox
2018-06-21 21:28 ` [PATCH 02/26] ida: Lock the IDA in ida_destroy Matthew Wilcox
2018-06-21 21:28 ` [PATCH 03/26] ida: Add new API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 04/26] mtip32xx: Convert to new IDA API Matthew Wilcox
2018-06-25  8:20   ` Johannes Thumshirn
2018-06-21 21:28 ` [PATCH 05/26] fs: Convert unnamed_dev_ida to new API Matthew Wilcox
2018-06-22 19:45   ` Randy Dunlap
2018-06-22 21:12     ` Matthew Wilcox
2018-06-21 21:28 ` [PATCH 06/26] fs: Convert namespace IDAs " Matthew Wilcox
2018-06-21 21:28 ` [PATCH 07/26] devpts: Convert to new IDA API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 08/26] sd: Convert to new IDA interface Matthew Wilcox
2018-06-21 21:28 ` [PATCH 09/26] osd: Convert to new IDA API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 10/26] rsxx: " Matthew Wilcox
2018-06-21 21:28 ` [PATCH 11/26] cb710: " Matthew Wilcox
2018-06-21 21:33   ` Michał Mirosław
2018-06-21 21:28 ` [PATCH 12/26] Convert net_namespace " Matthew Wilcox
2018-06-21 21:28 ` [PATCH 13/26] ppc: Convert mmu context allocation " Matthew Wilcox
2018-06-22  2:15   ` Nicholas Piggin
2018-06-22  4:38     ` Matthew Wilcox
2018-06-22  4:53       ` Nicholas Piggin
2018-06-22  5:47       ` Aneesh Kumar K.V
2018-06-22  5:47     ` Aneesh Kumar K.V
2018-06-21 21:28 ` [PATCH 14/26] media: Convert entity ID " Matthew Wilcox
2018-07-24 11:05   ` Sakari Ailus
2018-07-30 14:55     ` Mauro Carvalho Chehab
2018-07-31 18:16       ` Matthew Wilcox
2018-06-21 21:28 ` [PATCH 15/26] ppc: Convert vas " Matthew Wilcox
2018-07-05 12:17   ` Matthew Wilcox
2018-06-21 21:28 ` [PATCH 16/26] dmaengine: Convert " Matthew Wilcox
2018-06-23 12:30   ` Vinod
2018-06-23 23:06     ` Matthew Wilcox
2018-06-24  7:57   ` Lars-Peter Clausen
2018-06-26 23:00     ` Matthew Wilcox
2018-06-21 21:28 ` [PATCH 17/26] drm/vmwgfx: " Matthew Wilcox
2018-06-21 21:28 ` [PATCH 18/26] target/iscsi: Allocate session IDs from an IDA Matthew Wilcox
2018-07-26 16:48   ` Mike Christie
2018-07-26 16:50     ` Mike Christie
2018-07-26 17:13     ` Mike Christie
2018-07-27 19:38       ` Matthew Wilcox
2018-07-27 21:05         ` Mike Christie
2018-07-31  2:03           ` Martin K. Petersen
2018-07-31 18:15             ` Matthew Wilcox
2018-07-31 18:55               ` Mike Christie
2018-06-21 21:28 ` [PATCH 19/26] ida: Start new test_ida module Matthew Wilcox
2018-06-21 21:28 ` [PATCH 20/26] idr-test: Convert ida_check_nomem to new API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 21/26] test_ida: Move ida_check_leaf Matthew Wilcox
2018-06-21 21:28 ` [PATCH 22/26] test_ida: Move ida_check_max Matthew Wilcox
2018-06-21 21:28 ` [PATCH 23/26] test_ida: Convert check_ida_conv to new API Matthew Wilcox
2018-06-21 21:28 ` Matthew Wilcox [this message]
2018-06-21 21:28 ` [PATCH 25/26] ida: Remove old API Matthew Wilcox
2018-06-21 21:28 ` [PATCH 26/26] ida: Change ida_get_new_above to return the id Matthew Wilcox

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