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| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | 2017-05-09 19:00:43 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-05-09 19:09:26 +0200 |
| commit | 8376efd31d3d7c44bd05be337adde023cc531fa1 (patch) | |
| tree | a058fa06362f801e82408c20f5d681b7dfcc8a54 /drivers/nvdimm/btt_devs.c | |
| parent | device-dax: kill NR_DEV_DAX (diff) | |
| download | linux-8376efd31d3d7c44bd05be337adde023cc531fa1.tar.xz linux-8376efd31d3d7c44bd05be337adde023cc531fa1.zip | |
x86, pmem: Fix cache flushing for iovec write < 8 bytes
Commit 11e63f6d920d added cache flushing for unaligned writes from an
iovec, covering the first and last cache line of a >= 8 byte write and
the first cache line of a < 8 byte write. But an unaligned write of
2-7 bytes can still cover two cache lines, so make sure we flush both
in that case.
Cc: <stable@vger.kernel.org>
Fixes: 11e63f6d920d ("x86, pmem: fix broken __copy_user_nocache ...")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/btt_devs.c')
0 files changed, 0 insertions, 0 deletions