diff options
| author |   Anshuman Khandual <anshuman.khandual@arm.com> | 2019-10-04 09:53:58 +0530 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2019-10-16 13:56:30 +0100 |
| commit | 6ec939f8b809cb06ba7802e17ef7024d1bc0ee84 (patch) | |
| tree | 53eb34b9662392068280a4b2f4841a442ffb9fdc /arch/arm64/mm/init.c | |
| parent | arm64: use generic free_initrd_mem() (diff) | |
| download | linux-dev-6ec939f8b809cb06ba7802e17ef7024d1bc0ee84.tar.xz linux-dev-6ec939f8b809cb06ba7802e17ef7024d1bc0ee84.zip | |
arm64/mm: Poison initmem while freeing with free_reserved_area()
Platform implementation for free_initmem() should poison the memory while
freeing it up. Hence pass across POISON_FREE_INITMEM while calling into
free_reserved_area(). The same is being followed in the generic fallback
for free_initmem() and some other platforms overriding it.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/mm/init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 87a0e3b6c146..7c225d0132b8 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -571,7 +571,7 @@ void free_initmem(void) { free_reserved_area(lm_alias(__init_begin), lm_alias(__init_end), - 0, "unused kernel"); + POISON_FREE_INITMEM, "unused kernel"); /* * Unmap the __init region but leave the VM area in place. This * prevents the region from being reused for kernel modules, which |