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| author | Rong Qianfeng <rongqianfeng@vivo.com> | 2024-09-02 05:39:35 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-04 18:26:26 +0300 |
| commit | 1db9716d44875d31acf29255710e82338560c177 (patch) | |
| tree | ff015848c75c335daf461d4bf61dc61f39483b4e /arch/arm64/mm | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
| download | linux-1db9716d44875d31acf29255710e82338560c177.tar.xz | |
arm64/mm: Delete __init region from memblock.reserved
If CONFIG_ARCH_KEEP_MEMBLOCK is enabled, the memory information in
memblock will be retained. We release the __init memory here, and
we should also delete the corresponding region in memblock.reserved,
which allows debugfs/memblock/reserved to display correct memory
information.
Signed-off-by: Rong Qianfeng <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20240902023940.43227-1-rongqianfeng@vivo.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 9b5ab6818f7f..aea834a9691a 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -414,6 +414,12 @@ void __init mem_init(void) void free_initmem(void) { + unsigned long aligned_begin = ALIGN_DOWN((u64)__init_begin, PAGE_SIZE); + unsigned long aligned_end = ALIGN((u64)__init_end, PAGE_SIZE); + + /* Delete __init region from memblock.reserved. */ + memblock_free((void *)aligned_begin, aligned_end - aligned_begin); + free_reserved_area(lm_alias(__init_begin), lm_alias(__init_end), POISON_FREE_INITMEM, "unused kernel"); |