| commit | af2e7aaed1ccf30e61af3e096ac2c7df2f2d6c2a | [log] [tgz] |
|---|---|---|
| author | Christian Borntraeger <borntraeger@de.ibm.com> | Mon Nov 24 10:53:11 2014 +0100 |
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | Thu Dec 18 09:54:40 2014 +0100 |
| tree | 6e9e15b79431ca3f4be281e98491b86205f1fa7f | |
| parent | 4218091cb45f601b889cd032e39fe6878a426e70 [diff] |
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>