From: Wei Yang <richard.weiyang@gmail.com>
To: Liam.Howlett@oracle.com
Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org,
Wei Yang <richard.weiyang@gmail.com>
Subject: [PATCH] maple_tree: fix the comment on maple_arange_64 size
Date: Wed, 17 Jul 2024 01:41:42 +0000 [thread overview]
Message-ID: <20240717014142.24263-1-richard.weiyang@gmail.com> (raw)
The comment here describe the size of struct maple_arange_64.
The value here is not correct. Fix it with the correct value.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: "Liam R. Howlett" <Liam.Howlett@oracle.com>
---
For 64BIT, value is get from kernel module.
For 32BIT, value is get from user space pseudo code.
---
include/linux/maple_tree.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index a53ad4dabd7e..8c87f8d0497d 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -28,13 +28,13 @@
/* 64bit sizes */
#define MAPLE_NODE_SLOTS 31 /* 256 bytes including ->parent */
#define MAPLE_RANGE64_SLOTS 16 /* 256 bytes */
-#define MAPLE_ARANGE64_SLOTS 10 /* 240 bytes */
+#define MAPLE_ARANGE64_SLOTS 10 /* 248 bytes */
#define MAPLE_ALLOC_SLOTS (MAPLE_NODE_SLOTS - 1)
#else
/* 32bit sizes */
#define MAPLE_NODE_SLOTS 63 /* 256 bytes including ->parent */
#define MAPLE_RANGE64_SLOTS 32 /* 256 bytes */
-#define MAPLE_ARANGE64_SLOTS 21 /* 240 bytes */
+#define MAPLE_ARANGE64_SLOTS 21 /* 256 bytes */
#define MAPLE_ALLOC_SLOTS (MAPLE_NODE_SLOTS - 2)
#endif /* defined(CONFIG_64BIT) || defined(BUILD_VDSO32_64) */
--
2.34.1
next reply other threads:[~2024-07-17 1:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-17 1:41 Wei Yang [this message]
2024-07-17 2:06 ` [PATCH] maple_tree: fix the comment on maple_arange_64 size Matthew Wilcox
2024-07-17 2:41 ` Wei Yang
2024-07-17 2:45 ` Matthew Wilcox
2024-07-17 3:03 ` Wei Yang
2024-07-17 3:05 ` Matthew Wilcox
2024-07-17 7:05 ` Wei Yang
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