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| author | Dan Williams <dan.j.williams@intel.com> | 2018-06-09 00:16:44 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-06-09 00:16:44 +0200 |
| commit | 930218affeadd1325ea17e053f0dcecf218f5a4f (patch) | |
| tree | 203c293668a88e03b9f292cf4d5a294ca8a4275a /drivers/dax | |
| parent | Merge branch 'for-4.18/dax' into libnvdimm-for-next (diff) | |
| parent | x86, nfit_test: Add unit test for memcpy_mcsafe() (diff) | |
| download | linux-930218affeadd1325ea17e053f0dcecf218f5a4f.tar.xz linux-930218affeadd1325ea17e053f0dcecf218f5a4f.zip | |
Merge branch 'for-4.18/mcsafe' into libnvdimm-for-next
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/super.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 60d01b5d2a67..88e77b7f0c4b 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -287,6 +287,16 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, } EXPORT_SYMBOL_GPL(dax_copy_from_iter); +size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, + size_t bytes, struct iov_iter *i) +{ + if (!dax_alive(dax_dev)) + return 0; + + return dax_dev->ops->copy_to_iter(dax_dev, pgoff, addr, bytes, i); +} +EXPORT_SYMBOL_GPL(dax_copy_to_iter); + #ifdef CONFIG_ARCH_HAS_PMEM_API void arch_wb_cache_pmem(void *addr, size_t size); void dax_flush(struct dax_device *dax_dev, void *addr, size_t size) |