Fix a race condition in socow_setup(): The page must be wired before sf_buf_alloc() is called, as sf_buf_alloc() may sleep.  If it does sleep, the page might be reclaimed before wiring occurs.
Fix a race condition in socow_setup(): The page must be wired before
sf_buf_alloc() is called, as sf_buf_alloc() may sleep.  If it does sleep,
the page might be reclaimed before wiring occurs.

Reported by: alc

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase