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For BIO_READ check if provider is open for reading and for BIO_WRITE,

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check if provider is open for writing.
This fixes panic when device is open only for writing and we send write
request.
This commit is contained in:
Pawel Jakub Dawidek 2004-11-09 23:04:45 +00:00
parent e207b52afa
commit 9c6a3f03c6
1 changed files with 11 additions and 3 deletions
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14
sys/geom/raid3/g_raid3.c
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@ -1009,9 +1009,17 @@ g_raid3_scatter(struct bio *pbp)
cp = disk->d_consumer;
cbp->bio_to = cp->provider;
G_RAID3_LOGREQ(3, cbp, "Sending request.");
KASSERT(cp->acr > 0 && cp->ace > 0,
("Consumer %s not opened (r%dw%de%d).", cp->provider->name,
cp->acr, cp->acw, cp->ace));
#ifdef INVARIANTS
if (cbp->bio_cmd == BIO_READ) {
KASSERT(cp->acr > 0 && cp->ace > 0,
("Consumer %s not opened (r%dw%de%d).",
cp->provider->name, cp->acr, cp->acw, cp->ace));
} else if (cbp->bio_cmd == BIO_WRITE) {
KASSERT(cp->acw > 0 && cp->ace > 0,
("Consumer %s not opened (r%dw%de%d).",
cp->provider->name, cp->acr, cp->acw, cp->ace));
}
#endif
cp->index++;
g_io_request(cbp, cp);
}