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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-11-24 10:53:11 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-12-18 09:54:40 +0100 |
| commit | af2e7aaed1ccf30e61af3e096ac2c7df2f2d6c2a (patch) | |
| tree | 6e9e15b79431ca3f4be281e98491b86205f1fa7f /arch/arm/include | |
| parent | 4218091cb45f601b889cd032e39fe6878a426e70 (diff) | |
| download | linux-af2e7aaed1ccf30e61af3e096ac2c7df2f2d6c2a.tar.bz2 | |
arm64/spinlock: Replace ACCESS_ONCE 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 spinlock 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/arm/include')
0 files changed, 0 insertions, 0 deletions