[PATCH v2 2/6] xen/x86: free_p2m_page: use memblock_free_ptr() to free a virtual pointer
From: Mike Rapoport <rppt@kernel.org>
Date: 2021-09-30 18:51:06
Also in:
kvm, linux-alpha, linux-arm-kernel, linux-devicetree, linux-efi, linux-iommu, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, linux-usb, lkml, sparclinux, xen-devel
Subsystem:
the rest, x86 architecture (32-bit and 64-bit), xen hypervisor x86 · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, Juergen Gross
From: Mike Rapoport <redacted> free_p2m_page() wrongly passes a virtual pointer to memblock_free() that treats it as a physical address. Call memblock_free_ptr() instead that gets a virtual address to free the memory. Signed-off-by: Mike Rapoport <redacted> Reviewed-by: Juergen Gross <jgross@suse.com> --- arch/x86/xen/p2m.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 5e6e236977c7..141bb9dbd2fb 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c@@ -197,7 +197,7 @@ static void * __ref alloc_p2m_page(void) static void __ref free_p2m_page(void *p) { if (unlikely(!slab_is_available())) { - memblock_free((unsigned long)p, PAGE_SIZE); + memblock_free_ptr(p, PAGE_SIZE); return; }
--
2.28.0