It contradicts NVMe specification where alignment is only required when atomic write boundary (NABSPF/NABO) is set and highly limits usage of NVMe atomic writes Signed-off-by: Vitaliy Filippov --- fs/read_write.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index 833bae068770..5467d710108d 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1802,17 +1802,9 @@ int generic_file_rw_checks(struct file *file_in, struct file *file_out) int generic_atomic_write_valid(struct kiocb *iocb, struct iov_iter *iter) { - size_t len = iov_iter_count(iter); - if (!iter_is_ubuf(iter)) return -EINVAL; - if (!is_power_of_2(len)) - return -EINVAL; - - if (!IS_ALIGNED(iocb->ki_pos, len)) - return -EINVAL; - if (!(iocb->ki_flags & IOCB_DIRECT)) return -EOPNOTSUPP; -- 2.51.0