From: Zhang Yi <yi.zhang@xxxxxxxxxx>
Impliment zero_range iomap path, direct use iomap_zero_range() and add a
branch in ext4_block_zero_page_range().
Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
---
fs/ext4/inode.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f72864b9a6b3..ca66afd61fb3 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4218,6 +4218,13 @@ static int __ext4_block_zero_page_range(handle_t *handle,
return err;
}
+static int ext4_iomap_zero_range(struct inode *inode,
+ loff_t from, loff_t length)
+{
+ return iomap_zero_range(inode, from, length, NULL,
+ &ext4_iomap_buffered_write_ops);
+}
+
/*
* ext4_block_zero_page_range() zeros out a mapping of length 'length'
* starting from file offset 'from'. The range to be zero'd must
@@ -4243,6 +4250,8 @@ static int ext4_block_zero_page_range(handle_t *handle,
if (IS_DAX(inode)) {
return dax_zero_range(inode, from, length, NULL,
&ext4_iomap_ops);
+ } else if (ext4_test_inode_state(inode, EXT4_STATE_BUFFERED_IOMAP)) {
+ return ext4_iomap_zero_range(inode, from, length);
}
return __ext4_block_zero_page_range(handle, mapping, from, length);
}
--
2.39.2
