Commit a96b2075 authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Michael Ellerman
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KVM: PPC: Book3S HV: Use the bitmap API to allocate bitmaps 



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

It is less verbose and it improves the semantic.

Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/52e843a460bc374973149b8da0bd04f9761b80b7.1657382184.git.christophe.jaillet@wanadoo.fr
parent 6fa1efea

arch/powerpc/kvm/book3s_hv_uvmem.c

+2 −3
Original line number Diff line number Diff line
@@ -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);

}