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| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2021-05-10 13:07:51 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-05-25 20:04:38 +0200 |
| commit | e377ab82311af95c99648c6424a6b888a0ccb102 (patch) | |
| tree | 1fa8d360e5eebb77732d8e3aebce63c0276eee0a /arch/arm64/mm | |
| parent | arm64/mm: Validate CONFIG_PGTABLE_LEVELS (diff) | |
| download | linux-e377ab82311af95c99648c6424a6b888a0ccb102.tar.xz linux-e377ab82311af95c99648c6424a6b888a0ccb102.zip | |
arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]_bad()
Semantics wise, [pud|pmd]_bad() have always implied that a given [PUD|PMD]
entry does not have a pointer to the next level page table. This had been
made clear in the commit a1c76574f345 ("arm64: mm: use *_sect to check for
section maps"). Hence explicitly check for a table entry rather than just
testing a single bit. This basically redefines [pud|pmd]_bad() in terms of
[pud|pmd]_table() making the semantics clear.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/1620644871-26280-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
0 files changed, 0 insertions, 0 deletions