OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> writes:
> 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.
Forgot to include akpm to addresses.
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
