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SubjectRe: [patch] Cleanup bootmem allocator and fix alloc_bootmem_low
Ravikiran G Thirumalai <kiran@scalex86.org> wrote:
>
> Hi Andrew,
> The following patch removes alloc_bootmem_*limit apis and fixes
> alloc_bootmem_low and friends to allocate below the 4G limit.
>
> ...
>
> +void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal)
> +{
> + pg_data_t *pgdat = pgdat_list;
> + void *ptr;
> +
> + for_each_pgdat(pgdat)
> + if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
> + align, goal, 0x100000000)))
> + return(ptr);
> +
> + /*
> + * Whoops, we cannot satisfy the allocation request.
> + */
> + printk(KERN_ALERT "low bootmem alloc of %lu bytes failed!\n", size);
> + panic("Out of low memory");
> + return NULL;
> +}
> +
> +void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
> + unsigned long align, unsigned long goal)
> +{
> + return __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0x100000000);
> +}

mm/bootmem.c: In function `__alloc_bootmem_low':
mm/bootmem.c:432: warning: integer constant is too large for "long" type
mm/bootmem.c:432: warning: large integer implicitly truncated to unsigned type
mm/bootmem.c: In function `__alloc_bootmem_low_node':
mm/bootmem.c:446: warning: integer constant is too large for "long" type
mm/bootmem.c:446: warning: large integer implicitly truncated to unsigned type

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