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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-06 22:54:46 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-19 14:14:21 +0100 |
| commit | 38c5ce936a0862a6ce2c8d1c72689a3aba301425 (patch) | |
| tree | 1cfaa35163f8a50723fc73b9f7763e23c13ce923 /include/linux/compiler.h | |
| 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>
Diffstat (limited to 'include/linux/compiler.h')
0 files changed, 0 insertions, 0 deletions