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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-06 22:54:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-06 14:57:43 -0800 |
| commit | dd4c10858bb00704df476ef17a0b3037b909e4f5 (patch) | |
| tree | 31ebfd2b64ac73f0978608acf74227f98b904399 /drivers/message/fusion/lsi/mpi_raid.h | |
| parent | 74df55cf12da35361087869e3e4cb7e9e942d4f6 (diff) | |
mm/gup: Replace ACCESS_ONCE with READ_ONCE
commit 38c5ce936a0862a6ce2c8d1c72689a3aba301425 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/message/fusion/lsi/mpi_raid.h')
0 files changed, 0 insertions, 0 deletions