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Merge branch 'for-4.18/mcsafe' into libnvdimm-for-next

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This commit is contained in:
Dan Williams
2018-06-08 15:16:44 -07:00
parent b56845794e 5d8beee20d
commit 930218affe
23 changed files with 485 additions and 79 deletions
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13
drivers/nvdimm/pmem.c
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@@ -101,15 +101,15 @@ static blk_status_t read_pmem(struct page *page, unsigned int off,
void *pmem_addr, unsigned int len)
{
unsigned int chunk;
int rc;
unsigned long rem;
void *mem;
while (len) {
mem = kmap_atomic(page);
chunk = min_t(unsigned int, len, PAGE_SIZE);
rc = memcpy_mcsafe(mem + off, pmem_addr, chunk);
rem = memcpy_mcsafe(mem + off, pmem_addr, chunk);
kunmap_atomic(mem);
if (rc)
if (rem)
return BLK_STS_IOERR;
len -= chunk;
off = 0;
@@ -259,9 +259,16 @@ static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
return copy_from_iter_flushcache(addr, bytes, i);
}
static size_t pmem_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff,
void *addr, size_t bytes, struct iov_iter *i)
{
return copy_to_iter_mcsafe(addr, bytes, i);
}
static const struct dax_operations pmem_dax_ops = {
.direct_access = pmem_dax_direct_access,
.copy_from_iter = pmem_copy_from_iter,
.copy_to_iter = pmem_copy_to_iter,
};
static const struct attribute_group *pmem_attribute_groups[] = {