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arm64: To remove initrd reserved area entry from memblock 

INITRD reserved area entry is not removed from memblock
even though initrd reserved area is freed. After freeing
the memory it is released from memblock. The same can be
checked from /sys/kernel/debug/memblock/reserved.

The patch makes sure that the initrd entry is removed from
memblock when keepinitrd is not enabled.

The patch only affects accounting and debugging. This does not
fix any memory leak.

Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: CHANDAN VN <chandan.vn@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
CHANDAN VN 2018-04-30 09:50:18 +05:30 committed by Will Deacon
parent 6da6c0db53
commit 05c58752f9
1 changed files with 3 additions and 1 deletions
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4
arch/arm64/mm/init.c
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@ -646,8 +646,10 @@ static int keep_initrd __initdata;
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd)
if (!keep_initrd) {
free_reserved_area((void *)start, (void *)end, 0, "initrd");
memblock_free(__virt_to_phys(start), end - start);
}
}
static int __init keepinitrd_setup(char *__unused)