| commit | 488beef1440e845751365202faace2465840ea98 | [log] [tgz] |
|---|---|---|
| author | Christian Borntraeger <borntraeger@de.ibm.com> | Tue Nov 25 11:44:26 2014 +0100 |
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | Thu Dec 18 09:54:40 2014 +0100 |
| tree | f1ef574626d0253813e9436fe7a114cf48af19a5 | |
| parent | af2e7aaed1ccf30e61af3e096ac2c7df2f2d6c2a [diff] |
arm/spinlock: 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 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>