diff options
| -rw-r--r-- | block/file-posix.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/block/file-posix.c b/block/file-posix.c index e3f1b045d1..829ee538d8 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1488,20 +1488,21 @@ static ssize_t handle_aiocb_copy_range(RawPosixAIOData *aiocb) ssize_t ret = copy_file_range(aiocb->aio_fildes, &in_off, aiocb->aio_fd2, &out_off, bytes, 0); - if (ret == -EINTR) { - continue; + if (ret == 0) { + /* No progress (e.g. when beyond EOF), let the caller fall back to + * buffer I/O. */ + return -ENOSPC; } if (ret < 0) { - if (errno == ENOSYS) { + switch (errno) { + case ENOSYS: return -ENOTSUP; - } else { + case EINTR: + continue; + default: return -errno; } } - if (!ret) { - /* No progress (e.g. when beyond EOF), fall back to buffer I/O. */ - return -ENOTSUP; - } bytes -= ret; } return 0; |