diff options
Diffstat (limited to 'sys/scsi/safte.c')
| -rw-r--r-- | sys/scsi/safte.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/scsi/safte.c b/sys/scsi/safte.c index 6e0a8dc232f..b490ecbd43d 100644 --- a/sys/scsi/safte.c +++ b/sys/scsi/safte.c @@ -1,4 +1,4 @@ -/* $OpenBSD: safte.c,v 1.21 2005/11/12 15:12:10 dlg Exp $ */ +/* $OpenBSD: safte.c,v 1.22 2005/11/13 02:26:48 dlg Exp $ */ /* * Copyright (c) 2005 David Gwynne <dlg@openbsd.org> @@ -23,6 +23,8 @@ #include <sys/device.h> #include <sys/scsiio.h> #include <sys/malloc.h> +#include <sys/proc.h> +#include <sys/lock.h> #include <sys/queue.h> #include <sys/sensors.h> @@ -62,6 +64,7 @@ struct safte_sensor { struct safte_softc { struct device sc_dev; struct scsi_link *sc_link; + struct lock sc_lock; u_int sc_encbuflen; u_char *sc_encbuf; @@ -159,6 +162,7 @@ safte_attach(struct device *parent, struct device *self, void *aux) sc->sc_link = sa->sa_sc_link; sa->sa_sc_link->device_softc = sc; + lockinit(&sc->sc_lock, PZERO, DEVNAME(sc), 0, 0); printf("\n"); @@ -207,6 +211,8 @@ safte_detach(struct device *self, int flags) struct safte_softc *sc = (struct safte_softc *)self; int i; + lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL, curproc); + #if NBIO > 0 if (sc->sc_nslots > 0) bio_unregister(self); @@ -226,6 +232,9 @@ safte_detach(struct device *self, int flags) if (sc->sc_encbuf != NULL) free(sc->sc_encbuf, M_DEVBUF); + lockmgr(&sc->sc_lock, LK_RELEASE, NULL, curproc); + lockmgr(&sc->sc_lock, LK_DRAIN, NULL, curproc); + return (0); } @@ -374,6 +383,8 @@ safte_read_encstat(void *arg) struct safte_sensor *s; u_int16_t oot; + lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL, curproc); + memset(&cmd, 0, sizeof(cmd)); cmd.opcode = READ_BUFFER; cmd.flags |= SAFTE_RD_MODE; @@ -390,6 +401,7 @@ safte_read_encstat(void *arg) if (scsi_scsi_cmd(sc->sc_link, (struct scsi_generic *)&cmd, sizeof(cmd), sc->sc_encbuf, sc->sc_encbuflen, 2, 30000, NULL, flags) != 0) { + lockmgr(&sc->sc_lock, LK_RELEASE, NULL, curproc); printf("%s: unable to read enclosure status\n", DEVNAME(sc)); return; } @@ -491,6 +503,8 @@ safte_read_encstat(void *arg) for (i = 0; i < sc->sc_ntemps; i++) sc->sc_temps[i].se_sensor.status = (oot & (1 << i)) ? SENSOR_S_CRIT : SENSOR_S_OK; + + lockmgr(&sc->sc_lock, LK_RELEASE, NULL, curproc); } #if NBIO > 0 @@ -533,10 +547,12 @@ safte_bio_blink(struct safte_softc *sc, struct bioc_blink *blink) return (EINVAL); } + lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL, curproc); for (slot = 0; slot < sc->sc_nslots; slot++) { if (sc->sc_slots[slot] == blink->bb_target) break; } + lockmgr(&sc->sc_lock, LK_RELEASE, NULL, curproc); if (slot >= sc->sc_nslots) return (ENODEV); |