Commit ea44de69 authored by Heiko Carstens's avatar Heiko Carstens Committed by Vasily Gorbik
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s390/vdso: simplify vdso size calculation 



The vdso is (and must) be page aligned and its size must also be
a multiple of PAGE_SIZE. Therefore no need to round upwards.

Reviewed-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent 96c0c7ae

arch/s390/kernel/vdso.c

+1 −2
Original line number Diff line number Diff line
@@ -170,8 +170,7 @@ static int __init vdso_init(void) 
	int i;



	/* Calculate the size of the 64 bit vDSO */

	vdso64_pages = ((&vdso64_end - &vdso64_start

			 + PAGE_SIZE - 1) >> PAGE_SHIFT) + 1;

	vdso64_pages = ((&vdso64_end - &vdso64_start) >> PAGE_SHIFT) + 1;



	/* Make sure pages are in the correct state */

	vdso64_pagelist = kcalloc(vdso64_pages + 1, sizeof(struct page *),