Message ID | 20230117023335.1690727-5-Liam.Howlett@oracle.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Tue, 17 Jan 2023 02:34:11 +0000 Received: from SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::a02:2ac8:ee3e:682]) by SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::a02:2ac8:ee3e:682%4]) with mapi id 15.20.6002.012; Tue, 17 Jan 2023 02:34:11 +0000 From: Liam Howlett <liam.howlett@oracle.com> To: "linux-mm@kvack.org" <linux-mm@kvack.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org> CC: Liam Howlett <liam.howlett@oracle.com>, Liam Howlett <liam.howlett@oracle.com> Subject: [PATCH v3 04/48] test_maple_tree: Test modifications while iterating Thread-Topic: [PATCH v3 04/48] test_maple_tree: Test modifications while iterating Thread-Index: AQHZKhwuED1irTjJeEmDGgAGgOPqkg== Date: Tue, 17 Jan 2023 02:34:10 +0000 Message-ID: <20230117023335.1690727-5-Liam.Howlett@oracle.com> References: <20230117023335.1690727-1-Liam.Howlett@oracle.com> In-Reply-To: <20230117023335.1690727-1-Liam.Howlett@oracle.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.35.1 x-ms-publictraffictype: Email x-ms-traffictypediagnostic: SN6PR10MB3022:EE_|CH0PR10MB5356:EE_ x-ms-office365-filtering-correlation-id: c891935d-7f4b-4da1-c483-08daf8335102 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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VMA tree type safety and remove __vma_adjust()
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diff --git a/lib/test_maple_tree.c b/lib/test_maple_tree.c index ec847bf4dcb4..3d19b1f78d71 100644 --- a/lib/test_maple_tree.c +++ b/lib/test_maple_tree.c @@ -1709,6 +1709,74 @@ static noinline void check_forking(struct maple_tree *mt) mtree_destroy(&newmt); } +static noinline void check_iteration(struct maple_tree *mt) +{ + int i, nr_entries = 125; + void *val; + MA_STATE(mas, mt, 0, 0); + + for (i = 0; i <= nr_entries; i++) + mtree_store_range(mt, i * 10, i * 10 + 9, + xa_mk_value(i), GFP_KERNEL); + + mt_set_non_kernel(99999); + + i = 0; + mas_lock(&mas); + mas_for_each(&mas, val, 925) { + MT_BUG_ON(mt, mas.index != i * 10); + MT_BUG_ON(mt, mas.last != i * 10 + 9); + /* Overwrite end of entry 92 */ + if (i == 92) { + mas.index = 925; + mas.last = 929; + mas_store(&mas, val); + } + i++; + } + /* Ensure mas_find() gets the next value */ + val = mas_find(&mas, ULONG_MAX); + MT_BUG_ON(mt, val != xa_mk_value(i)); + + mas_set(&mas, 0); + i = 0; + mas_for_each(&mas, val, 785) { + MT_BUG_ON(mt, mas.index != i * 10); + MT_BUG_ON(mt, mas.last != i * 10 + 9); + /* Overwrite start of entry 78 */ + if (i == 78) { + mas.index = 780; + mas.last = 785; + mas_store(&mas, val); + } else { + i++; + } + } + val = mas_find(&mas, ULONG_MAX); + MT_BUG_ON(mt, val != xa_mk_value(i)); + + mas_set(&mas, 0); + i = 0; + mas_for_each(&mas, val, 765) { + MT_BUG_ON(mt, mas.index != i * 10); + MT_BUG_ON(mt, mas.last != i * 10 + 9); + /* Overwrite end of entry 76 and advance to the end */ + if (i == 76) { + mas.index = 760; + mas.last = 765; + mas_store(&mas, val); + mas_next(&mas, ULONG_MAX); + } + i++; + } + /* Make sure the next find returns the one after 765, 766-769 */ + val = mas_find(&mas, ULONG_MAX); + MT_BUG_ON(mt, val != xa_mk_value(76)); + mas_unlock(&mas); + mas_destroy(&mas); + mt_set_non_kernel(0); +} + static noinline void check_mas_store_gfp(struct maple_tree *mt) { @@ -2659,6 +2727,10 @@ static int maple_tree_seed(void) goto skip; #endif + mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE); + check_iteration(&tree); + mtree_destroy(&tree); + mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE); check_forking(&tree); mtree_destroy(&tree);