diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2017-05-30 07:40:44 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-06-15 23:35:24 +0200 |
| commit | 4e4f00a9b51a1c52ebdd728a1caeb3b9fe48c39d (patch) | |
| tree | 949f4063c4ec29fa77660d12390942976dce8d0f /drivers/nvdimm/pmem.c | |
| parent | x86, dax: replace clear_pmem() with open coded memset + dax_ops->flush (diff) | |
| download | linux-4e4f00a9b51a1c52ebdd728a1caeb3b9fe48c39d.tar.xz linux-4e4f00a9b51a1c52ebdd728a1caeb3b9fe48c39d.zip | |
x86, dax, libnvdimm: remove wb_cache_pmem() indirection
With all handling of the CONFIG_ARCH_HAS_PMEM_API case being moved to
libnvdimm and the pmem driver directly we do not need to provide global
wrappers and fallbacks in the CONFIG_ARCH_HAS_PMEM_API=n case. The pmem
driver will simply not link to arch_wb_cache_pmem() in that case. Same
as before, pmem flushing is only defined for x86_64, via
clean_cache_range(), but it is straightforward to add other archs in the
future.
arch_wb_cache_pmem() is an exported function since the pmem module needs
to find it, but it is privately declared in drivers/nvdimm/pmem.h because
there are no consumers outside of the pmem driver.
Cc: <x86@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Oliver O'Halloran <oohall@gmail.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/pmem.c')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 823b07774244..3b87702d46bb 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -245,7 +245,7 @@ static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, static void pmem_dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t size) { - wb_cache_pmem(addr, size); + arch_wb_cache_pmem(addr, size); } static const struct dax_operations pmem_dax_ops = { |