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Howlett" To: Andrew Morton Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Liam R. Howlett" Subject: [PATCH v4 14/35] maple_tree: Use MAS_BUG_ON() prior to calling mas_meta_gap() Date: Thu, 18 May 2023 10:55:23 -0400 Message-Id: <20230518145544.1722059-15-Liam.Howlett@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230518145544.1722059-1-Liam.Howlett@oracle.com> References: <20230518145544.1722059-1-Liam.Howlett@oracle.com> X-ClientProxiedBy: YT4PR01CA0108.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:d7::7) To SN6PR10MB3022.namprd10.prod.outlook.com (2603:10b6:805:d8::25) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN6PR10MB3022:EE_|DM6PR10MB4347:EE_ X-MS-Office365-Filtering-Correlation-Id: a2aeb6e9-7406-4004-05c4-08db57b00bd0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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Signed-off-by: Liam R. Howlett --- lib/maple_tree.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index d5ccf7bcf3b5..d7809a7000c5 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -963,8 +963,6 @@ static inline unsigned char ma_meta_end(struct maple_node *mn, static inline unsigned char ma_meta_gap(struct maple_node *mn, enum maple_type mt) { - BUG_ON(mt != maple_arange_64); - return mn->ma64.meta.gap; } @@ -1628,6 +1626,7 @@ static inline unsigned long mas_max_gap(struct ma_state *mas) return mas_leaf_max_gap(mas); node = mas_mn(mas); + MAS_BUG_ON(mas, mt != maple_arange_64); offset = ma_meta_gap(node, mt); if (offset == MAPLE_ARANGE64_META_MAX) return 0; @@ -1661,6 +1660,7 @@ static inline void mas_parent_gap(struct ma_state *mas, unsigned char offset, pgaps = ma_gaps(pnode, pmt); ascend: + MAS_BUG_ON(mas, pmt != maple_arange_64); meta_offset = ma_meta_gap(pnode, pmt); if (meta_offset == MAPLE_ARANGE64_META_MAX) meta_gap = 0;