diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2017-05-29 13:12:20 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-06-15 14:35:24 -0700 |
| commit | 81f558701ae8d5677635118751b1b4043094c7e9 (patch) | |
| tree | 6fc9fe36c0f0c073c13337e096cba143494bfbd0 /arch/x86/lib/usercopy_64.c | |
| parent | 6318770a7d43a4166b6a8e3cef62e4a019d3c95e (diff) | |
x86, dax: replace clear_pmem() with open coded memset + dax_ops->flush
The clear_pmem() helper simply combines a memset() plus a cache flush.
Now that the flush routine is optionally provided by the dax device
driver we can avoid unnecessary cache management on dax devices fronting
volatile memory.
With clear_pmem() gone we can follow on with a patch to make pmem cache
management completely defined within the pmem driver.
Cc: <x86@kernel.org>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch/x86/lib/usercopy_64.c')
0 files changed, 0 insertions, 0 deletions