diff options
| -rw-r--r-- | block/raw-posix.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c index 5c745b9a18..d737f3a0c5 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -747,6 +747,15 @@ static ssize_t handle_aiocb_rw_linear(RawPosixAIOData *aiocb, char *buf) } if (len == -1 && errno == EINTR) { continue; + } else if (len == -1 && errno == EINVAL && + (aiocb->bs->open_flags & BDRV_O_NOCACHE) && + !(aiocb->aio_type & QEMU_AIO_WRITE) && + offset > 0) { + /* O_DIRECT pread() may fail with EINVAL when offset is unaligned + * after a short read. Assume that O_DIRECT short reads only occur + * at EOF. Therefore this is a short read, not an I/O error. + */ + break; } else if (len == -1) { offset = -errno; break; |