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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-11-21 16:21:56 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-12-18 09:54:39 +0100 |
| commit | 4218091cb45f601b889cd032e39fe6878a426e70 (patch) | |
| tree | 36f63ef018f6842f91b2118240cc6a144ef52571 /arch/arm64/include/asm/spinlock.h | |
| parent | x86/gup: Replace ACCESS_ONCE with READ_ONCE (diff) | |
| download | linux-4218091cb45f601b889cd032e39fe6878a426e70.tar.xz linux-4218091cb45f601b889cd032e39fe6878a426e70.zip | |
mips/gup: Replace ACCESS_ONCE with READ_ONCE
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 gup code to replace ACCESS_ONCE with READ_ONCE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'arch/arm64/include/asm/spinlock.h')
0 files changed, 0 insertions, 0 deletions