Hou Tao <houtao1@xxxxxxxxxx> writes:
> Now splice() on O_DIRECT-opened fat file will return -EFAULT, that is
> because the default .splice_write, namely default_file_splice_write(),
> will construct an ITER_KVEC iov_iter and dio_refill_pages() in dio path
> can not handle it.
>
> Fix it by implementing .splice_write through iter_file_splice_write().
>
> Spotted by xfs-tests generic/091.
>
> Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
> ---
> fs/fat/file.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/fs/fat/file.c b/fs/fat/file.c
> index 13935ee99e1e..b3bed32946b1 100644
> --- a/fs/fat/file.c
> +++ b/fs/fat/file.c
> @@ -214,6 +214,7 @@ const struct file_operations fat_file_operations = {
> #endif
> .fsync = fat_file_fsync,
> .splice_read = generic_file_splice_read,
> + .splice_write = iter_file_splice_write,
> .fallocate = fat_fallocate,
> };
Looks good.
Acked-by: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Thanks.
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
