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| author | Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> | 2016-03-24 02:07:57 -0400 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-21 20:13:28 +1000 |
| commit | 0eab46be21449f1612791201aa029facb676bd31 (patch) | |
| tree | ec23ccf83fe827e4ec636293fab7ceaece0fadf4 /samples | |
| parent | 31278b17a0dfed3014786b623fd07ee110b801da (diff) | |
| download | linux-0eab46be21449f1612791201aa029facb676bd31.tar.gz linux-0eab46be21449f1612791201aa029facb676bd31.tar.bz2 linux-0eab46be21449f1612791201aa029facb676bd31.zip | |
powerpc/mm: Add memory barrier in __hugepte_alloc()
__hugepte_alloc() uses kmem_cache_zalloc() to allocate a zeroed PTE
and proceeds to use the newly allocated PTE. Add a memory barrier to
make sure that the other CPUs see a properly initialized PTE.
Based on a fix suggested by James Dykman.
Reported-by: James Dykman <jdykman@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: James Dykman <jdykman@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions