From 47e6935136b1f9fbda59cd929409f8e7cee4a1e4 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Sun, 20 Nov 2016 18:08:05 -0500 Subject: [PATCH] ext4: use iomap for zeroing blocks in DAX mode 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(). Reviewed-by: Ross Zwisler Signed-off-by: Jan Kara Signed-off-by: Theodore Ts'o --- fs/ext4/inode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5e0526fed165..6d186ca2c34b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3859,8 +3859,10 @@ 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); } -- 2.39.5