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Allow our bio tools to be used for local bio-chopping by not mandating

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a bio_from value.  bio_to is still mandated (mostly for debuggign) and
shall be copied from the parent bio.
This commit is contained in:
phk 2003-10-06 09:07:35 +00:00
parent dc1586f843
commit c7d1762ad7
1 changed files with 7 additions and 2 deletions
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9
sys/geom/geom_io.c
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@ -268,11 +268,16 @@ g_io_deliver(struct bio *bp, int error)
struct g_provider *pp;
KASSERT(bp != NULL, ("NULL bp in g_io_deliver"));
cp = bp->bio_from;
pp = bp->bio_to;
KASSERT(pp != NULL, ("NULL bio_to in g_io_deliver"));
cp = bp->bio_from;
if (cp == NULL) {
bp->bio_error = error;
bp->bio_done(bp);
return;
}
KASSERT(cp != NULL, ("NULL bio_from in g_io_deliver"));
KASSERT(cp->geom != NULL, ("NULL bio_from->geom in g_io_deliver"));
KASSERT(pp != NULL, ("NULL bio_to in g_io_deliver"));
g_trace(G_T_BIO,
"g_io_deliver(%p) from %p(%s) to %p(%s) cmd %d error %d off %jd len %jd",