diff options
| author | Peng Zhang <zhangpeng.00@bytedance.com> | 2023-07-11 06:54:38 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 20:12:21 +0300 |
| commit | d695c30a8ca07ac7e2138435b461b36289d5656e (patch) | |
| tree | 8a0d10286edb71fb7cf8dcb31acb8fad3c4ecfd2 /include | |
| parent | 86aa6998ad00af823de81d12d41d7063c14298a0 (diff) | |
| download | linux-d695c30a8ca07ac7e2138435b461b36289d5656e.tar.xz | |
maple_tree: don't use MAPLE_ARANGE64_META_MAX to indicate no gap
Patch series "Improve the validation for maple tree and some cleanup", v2.
This patch (of 7):
Do not use a special offset to indicate that there is no gap. When there
is no gap, offset can point to any valid slots because its gap is 0.
Link: https://lkml.kernel.org/r/20230711035444.526-1-zhangpeng.00@bytedance.com
Link: https://lkml.kernel.org/r/20230711035444.526-3-zhangpeng.00@bytedance.com
Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/maple_tree.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h index 6e5bd2c9875d..7769270b85e8 100644 --- a/include/linux/maple_tree.h +++ b/include/linux/maple_tree.h @@ -29,14 +29,12 @@ #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_META_MAX 15 /* Out of range for metadata */ #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_META_MAX 31 /* Out of range for metadata */ #define MAPLE_ALLOC_SLOTS (MAPLE_NODE_SLOTS - 2) #endif /* defined(CONFIG_64BIT) || defined(BUILD_VDSO32_64) */ |