diff mbox series

[v2,2/2] dax: set did_zero to true when zeroing successfully

Message ID 1655387680-28058-3-git-send-email-kaixuxia@tencent.com (mailing list archive)
State New, archived
Headers show
Series fix the improper assignment for did_zero | expand

Commit Message

Kaixu Xia June 16, 2022, 1:54 p.m. UTC 
From: Kaixu Xia <kaixuxia@tencent.com>

It is unnecessary to check and set did_zero value in while() loop
in dax_zero_iter(), we can set did_zero to true only when zeroing
successfully at last.

Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
---
 fs/dax.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Christoph Hellwig June 16, 2022, 1:55 p.m. UTC | #1 
Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>
diff mbox series

Patch

diff --git a/fs/dax.c b/fs/dax.c
index 4155a6107fa1..649ff51c9a26 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1088,10 +1088,10 @@  static s64 dax_zero_iter(struct iomap_iter *iter, bool *did_zero)
 		pos += size;
 		length -= size;
 		written += size;
-		if (did_zero)
-			*did_zero = true;
 	} while (length > 0);
 
+	if (did_zero)
+		*did_zero = true;
 	return written;
 }