linux_dsm_epyc7002/arch/powerpc/lib/alloc.c
Michael Ellerman f691fa1080 powerpc: Replace mem_init_done with slab_is_available()
We have a powerpc specific global called mem_init_done which is "set on
boot once kmalloc can be called".

But that's not *quite* true. We set it at the bottom of mem_init(), and
rely on the fact that mm_init() calls kmem_cache_init() immediately
after that, and nothing is running in parallel.

So replace it with the generic and 100% correct slab_is_available().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-10 20:02:48 +10:00

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C

#include <linux/types.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
#include <linux/string.h>
#include <asm/setup.h>
void * __init_refok zalloc_maybe_bootmem(size_t size, gfp_t mask)
{
void *p;
if (slab_is_available())
p = kzalloc(size, mask);
else {
p = memblock_virt_alloc(size, 0);
}
return p;
}