diff mbox

[04/11] ext4: Use iomap for zeroing blocks in DAX mode

Message ID 1478603297-11793-5-git-send-email-jack@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kara Nov. 8, 2016, 11:08 a.m. UTC
Use iomap infrastructure for zeroing blocks when in DAX mode.
ext4_iomap_begin() handles read requests just fine and that's all that
is needed for iomap_zero_range().

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext4/inode.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Ross Zwisler Nov. 10, 2016, 10:05 p.m. UTC | #1
On Tue, Nov 08, 2016 at 12:08:10PM +0100, Jan Kara wrote:
> Use iomap infrastructure for zeroing blocks when in DAX mode.
> ext4_iomap_begin() handles read requests just fine and that's all that
> is needed for iomap_zero_range().
> 
> Signed-off-by: Jan Kara <jack@suse.cz>

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
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diff mbox

Patch

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 83e8411370d3..df017ce3e52d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3849,8 +3849,10 @@  static int ext4_block_zero_page_range(handle_t *handle,
 	if (length > max || length < 0)
 		length = max;
 
-	if (IS_DAX(inode))
-		return dax_zero_page_range(inode, from, length, ext4_get_block);
+	if (IS_DAX(inode)) {
+		return iomap_zero_range(inode, from, length, NULL,
+					&ext4_iomap_ops);
+	}
 	return __ext4_block_zero_page_range(handle, mapping, from, length);
 }