Re: [PATCH] delete unnecessary bootmem struct page array

From: Richard Weinberger
Date: Sun Jun 01 2014 - 03:54:59 EST


Hi!

Am 01.06.2014 02:24, schrieb Real Name:
> 1) uml kernel bootmem managed through bootmem_data->node_bootmem_map,
> not struct page array, so it is unnecessary.
>
> 2) the struct page array allocate has been pointer by a *loacl* pointer
> struct page *map in init_maps function. The array can't be access after
> the init_maps exit. As a result, there is about 1% of total memory leak.

Please add a Signed-off-by tag using your real name.

Thanks,
//richard

> ---
> arch/um/kernel/um_arch.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
> index 016adf0..d4c98d1 100644
> --- a/arch/um/kernel/um_arch.c
> +++ b/arch/um/kernel/um_arch.c
> @@ -348,12 +348,6 @@ int __init linux_main(int argc, char **argv)
> start_vm = VMALLOC_START;
>
> setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem);
> - if (init_maps(physmem_size, iomem_size, highmem)) {
> - printf("Failed to allocate mem_map for %Lu bytes of physical "
> - "memory and %Lu bytes of highmem\n", physmem_size,
> - highmem);
> - exit(1);
> - }
>
> virtmem_size = physmem_size;
> stack = (unsigned long) argv;
>
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