linux-kernel - [PATCH v2 8/9] pmem: switch to copy_to_iter

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Message-ID: <152532356857.17218.433171196433337889.stgit@dwillia2-desk3.amr.corp.intel.com>
Date:   Wed, 02 May 2018 21:59:28 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     linux-nvdimm@...ts.01.org
Cc:     hch@....de, linux-kernel@...r.kernel.org, tony.luck@...el.com,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH v2 8/9] pmem: switch to copy_to_iter_mcsafe()

Use the machine check safe version of copy_to_iter() for the
->copy_to_iter() operation published by the pmem driver.

Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 drivers/nvdimm/pmem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 1b8ab48365de..6d3da8c92868 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -267,7 +267,7 @@ static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 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(addr, bytes, i);
+	return copy_to_iter_mcsafe(addr, bytes, i);
 }
 
 static const struct dax_operations pmem_dax_ops = {