Commit abcdbd03 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/vdso: Remove get_page() in vdso_pagelist initialization 



Partly copied from commit 16fb1a9b ("arm64: vdso: clean up
vdso_pagelist initialization").

No need to get_page() the vdso text/data - these are part of the
kernel image.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9d14540bd10832b6c9519d74fb5728fdc4974b36.1601197618.git.christophe.leroy@csgroup.eu
parent 1bb30b7a

arch/powerpc/kernel/vdso.c

+2 −4
Original line number Diff line number Diff line
@@ -748,7 +748,7 @@ static int __init vdso_init(void) 
	BUG_ON(vdso32_pagelist == NULL);

	for (i = 0; i < vdso32_pages; i++) {

		struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);

		get_page(pg);



		vdso32_pagelist[i] = pg;

	}

	vdso32_pagelist[i++] = virt_to_page(vdso_data);
@@ -761,15 +761,13 @@ static int __init vdso_init(void) 
	BUG_ON(vdso64_pagelist == NULL);

	for (i = 0; i < vdso64_pages; i++) {

		struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);

		get_page(pg);



		vdso64_pagelist[i] = pg;

	}

	vdso64_pagelist[i++] = virt_to_page(vdso_data);

	vdso64_pagelist[i] = NULL;

#endif /* CONFIG_PPC64 */



	get_page(virt_to_page(vdso_data));



	smp_wmb();

	vdso_ready = 1;