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riscv: mm: Remove setup_zero_page()

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The empty_zero_page sits at .bss..page_aligned section, so will be
cleared to zero during clearing bss, we don't need to clear it again.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Jisheng Zhang 2021-05-07 22:19:59 +08:00 committed by Palmer Dabbelt
parent 3332f41906
commit 8f3e136ff3
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GPG key ID: 2E1319F35FBB1889
1 changed files with 0 additions and 6 deletions
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6
arch/riscv/mm/init.c
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@ -67,11 +67,6 @@ static void __init zone_sizes_init(void)
free_area_init(max_zone_pfns);
}
static void __init setup_zero_page(void)
{
memset((void *)empty_zero_page, 0, PAGE_SIZE);
}
#if defined(CONFIG_MMU) && defined(CONFIG_DEBUG_VM)
static inline void print_mlk(char *name, unsigned long b, unsigned long t)
{
@ -867,7 +862,6 @@ RESERVEDMEM_OF_DECLARE(elfcorehdr, "linux,elfcorehdr", elfcore_hdr_setup);
void __init paging_init(void)
{
setup_vm_final();
setup_zero_page();
}
void __init misc_mem_init(void)