| commit | 38c5ce936a0862a6ce2c8d1c72689a3aba301425 | [log] [tgz] |
|---|---|---|
| author | Christian Borntraeger <borntraeger@de.ibm.com> | Tue Jan 06 22:54:46 2015 +0100 |
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | Mon Jan 19 14:14:21 2015 +0100 |
| tree | 1cfaa35163f8a50723fc73b9f7763e23c13ce923 | |
| parent | bccec2a0a25206cb837e939adab94768a990ffa9 [diff] |
mm/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) Fixup gup_pmd_range. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>