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Message-Id: <52e843a460bc374973149b8da0bd04f9761b80b7.1657382184.git.christophe.jaillet@wanadoo.fr>
Date: Sat, 9 Jul 2022 17:56:43 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Michael Ellerman <mpe@...erman.id.au>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] 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: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
arch/powerpc/kvm/book3s_hv_uvmem.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c
index 598006301620..95de5fac6497 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -1187,8 +1187,7 @@ 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;
@@ -1212,5 +1211,5 @@ 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);
}
--
2.34.1
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