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KVM: PPC: Book3S HV: Use the bitmap API to allocate bitmaps

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Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/52e843a460bc374973149b8da0bd04f9761b80b7.1657382184.git.christophe.jaillet@wanadoo.fr
This commit is contained in:
Christophe JAILLET 2022-07-09 17:56:43 +02:00 committed by Michael Ellerman
parent 6fa1efeaa6
commit a96b20758b
1 changed files with 2 additions and 3 deletions
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5
arch/powerpc/kvm/book3s_hv_uvmem.c
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@ -1190,8 +1190,7 @@ int kvmppc_uvmem_init(void)
pfn_first = res->start >> PAGE_SHIFT;
pfn_last = pfn_first + (resource_size(res) >> PAGE_SHIFT);
kvmppc_uvmem_bitmap = kcalloc(BITS_TO_LONGS(pfn_last - pfn_first),
sizeof(unsigned long), GFP_KERNEL);
kvmppc_uvmem_bitmap = bitmap_zalloc(pfn_last - pfn_first, GFP_KERNEL);
if (!kvmppc_uvmem_bitmap) {
ret = -ENOMEM;
goto out_unmap;
@ -1215,5 +1214,5 @@ void kvmppc_uvmem_free(void)
memunmap_pages(&kvmppc_uvmem_pgmap);
release_mem_region(kvmppc_uvmem_pgmap.range.start,
range_len(&kvmppc_uvmem_pgmap.range));
kfree(kvmppc_uvmem_bitmap);
bitmap_free(kvmppc_uvmem_bitmap);
}