diff options
| -rw-r--r-- | sys/kern/sys_pipe.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/kern/sys_pipe.c b/sys/kern/sys_pipe.c index 46a4a4f..035b4fb 100644 --- a/sys/kern/sys_pipe.c +++ b/sys/kern/sys_pipe.c @@ -1074,8 +1074,9 @@ pipe_write(fp, uio, active_cred, flags, td) * The direct write mechanism will detect the reader going * away on us. */ - if ((uio->uio_iov->iov_len >= PIPE_MINDIRECT) && - (wpipe->pipe_buffer.size >= PIPE_MINDIRECT) && + if (uio->uio_segflg == UIO_USERSPACE && + uio->uio_iov->iov_len >= PIPE_MINDIRECT && + wpipe->pipe_buffer.size >= PIPE_MINDIRECT && (fp->f_flag & FNONBLOCK) == 0) { pipeunlock(wpipe); error = pipe_direct_write(wpipe, uio); |
