diff options
| -rw-r--r-- | lib/libc/sys/sendfile.2 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/libc/sys/sendfile.2 b/lib/libc/sys/sendfile.2 index 322971f..612ff5c 100644 --- a/lib/libc/sys/sendfile.2 +++ b/lib/libc/sys/sendfile.2 @@ -116,9 +116,17 @@ Busy servers may benefit by transferring requests that would block to a separate I/O worker thread. .It .Dv SF_MNOWAIT . -(description missing) +Do not wait for some kernel resource to become available, +in particular, +.Vt mbuf +and +.Vt sf_buf . +The flag does not make the +.Fn sendfile +syscall trully non-blocking, since other resources are still allocated +in blocking fashion. .It -.Dv SF_SYNC , +.Dv SF_SYNC . .Nm sleeps until the network stack no longer references the VM pages of the file, making subsequent modifications to it safe. |
