51f481235c
Use a sx lock to permit uiomove directly into/out of the the per-port buffers. In addition, the sx lock provides a stronger guarantee that I think this driver wants which is to single-thread read and write calls even while paused. Finally, replace tsleep with dummy wait channels with calls to pause_sig to more clearly communicate the intent. Differential Revision: https://reviews.freebsd.org/D35081 |
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| pbio.c | ||
| pbioio.h | ||