linux-kernel - [PATCH 2/3] fs/dax: Clarify nr_pages to dax_direct

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Message-Id: <20210525172428.3634316-3-ira.weiny@intel.com>
Date:   Tue, 25 May 2021 10:24:27 -0700
From:   ira.weiny@...el.com
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Ira Weiny <ira.weiny@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        linux-kernel@...r.kernel.org, linux-nvdimm@...ts.01.org,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH 2/3] fs/dax: Clarify nr_pages to dax_direct_access()

From: Ira Weiny <ira.weiny@...el.com>

dax_direct_access() takes a number of pages.  PHYS_PFN(PAGE_SIZE) is a
very round about way to specify '1'.

Change the nr_pages parameter to the explicit value of '1'.

Reviewed-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Ira Weiny <ira.weiny@...el.com>
---
 fs/dax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/dax.c b/fs/dax.c
index b3d27fdc6775..07621322aeee 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -710,7 +710,7 @@ static int copy_cow_page_dax(struct block_device *bdev, struct dax_device *dax_d
 		return rc;
 
 	id = dax_read_lock();
-	rc = dax_direct_access(dax_dev, pgoff, PHYS_PFN(PAGE_SIZE), &kaddr, NULL);
+	rc = dax_direct_access(dax_dev, pgoff, 1, &kaddr, NULL);
 	if (rc < 0) {
 		dax_read_unlock(id);
 		return rc;
-- 
2.28.0.rc0.12.gb6a658bd00c9