ppc/kvm: Replace ACCESS_ONCE with READ_ONCE

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ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)

Change the ppc/kvm code to replace ACCESS_ONCE with READ_ONCE.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>

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This commit is contained in:

Christian Borntraeger 2015-01-06 22:41:46 +01:00

parent b1940cd21c

commit 5ee07612e9

2 changed files with 12 additions and 12 deletions

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8

arch/powerpc/kvm/book3s_hv_rm_xics.c

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16

arch/powerpc/kvm/book3s_xics.c

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