Add dax operation zero_page_range. This just calls generic helper
generic_dax_zero_page_range().
Suggested-by: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
drivers/s390/block/dcssblk.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 63502ca537eb..f6709200bcd0 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -62,6 +62,7 @@ static const struct dax_operations dcssblk_dax_ops = {
.dax_supported = generic_fsdax_supported,
.copy_from_iter = dcssblk_dax_copy_from_iter,
.copy_to_iter = dcssblk_dax_copy_to_iter,
+ .zero_page_range = dcssblk_dax_zero_page_range,
};
struct dcssblk_dev_info {
@@ -941,6 +942,12 @@ dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
return __dcssblk_direct_access(dev_info, pgoff, nr_pages, kaddr, pfn);
}
+static int dcssblk_dax_zero_page_range(struct dax_device *dax_dev,pgoff_t pgoff,
+ unsigned offset, size_t len)
+{
+ return generic_dax_zero_page_range(dax_dev, pgoff, offset, len);
+}
+
static void
dcssblk_check_params(void)
{
--
2.18.1
--
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