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-rw-r--r--arch/x86/include/asm/pmem.h7
-rw-r--r--fs/dax.c4
2 files changed, 2 insertions, 9 deletions
diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h
index d8ce3ec..1544fab 100644
--- a/arch/x86/include/asm/pmem.h
+++ b/arch/x86/include/asm/pmem.h
@@ -132,12 +132,7 @@ static inline void arch_clear_pmem(void __pmem *addr, size_t size)
{
void *vaddr = (void __force *)addr;
- /* TODO: implement the zeroing via non-temporal writes */
- if (size == PAGE_SIZE && ((unsigned long)vaddr & ~PAGE_MASK) == 0)
- clear_page(vaddr);
- else
- memset(vaddr, 0, size);
-
+ memset(vaddr, 0, size);
__arch_wb_cache_pmem(vaddr, size);
}
diff --git a/fs/dax.c b/fs/dax.c
index 43671b6..19492cc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -641,9 +641,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
goto fallback;
if (buffer_unwritten(&bh) || buffer_new(&bh)) {
- int i;
- for (i = 0; i < PTRS_PER_PMD; i++)
- clear_pmem(kaddr + i * PAGE_SIZE, PAGE_SIZE);
+ clear_pmem(kaddr, PMD_SIZE);
wmb_pmem();
count_vm_event(PGMAJFAULT);
mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
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