geom_slice.c and its consumers like GEOM_LABEL are not touching the data
unless hotspots are used. Pass G_PF_ACCEPT_UNMAPPED flag through except such rare cases (obsolete GEOM_SUNLABEL and GEOM_BSD).
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parent
6c6e13b6e1
commit
7868ec506b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=248722
@ -396,6 +396,8 @@ g_slice_config(struct g_geom *gp, u_int idx, int how, off_t offset, off_t length
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pp->stripeoffset = pp2->stripeoffset + offset;
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if (pp->stripesize > 0)
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pp->stripeoffset %= pp->stripesize;
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if (gsp->nhotspot == 0)
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pp->flags |= pp2->flags & G_PF_ACCEPT_UNMAPPED;
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if (0 && bootverbose)
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printf("GEOM: Configure %s, start %jd length %jd end %jd\n",
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pp->name, (intmax_t)offset, (intmax_t)length,
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@ -428,11 +430,17 @@ g_slice_conf_hot(struct g_geom *gp, u_int idx, off_t offset, off_t length, int r
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{
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struct g_slicer *gsp;
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struct g_slice_hot *gsl, *gsl2;
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struct g_provider *pp;
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g_trace(G_T_TOPOLOGY, "g_slice_conf_hot(%s, idx: %d, off: %jd, len: %jd)",
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gp->name, idx, (intmax_t)offset, (intmax_t)length);
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g_topology_assert();
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gsp = gp->softc;
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/* Deny unmapped I/O if hotspots are used. */
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if (gsp->nhotspot == 0) {
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LIST_FOREACH(pp, &gp->provider, provider)
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pp->flags &= ~G_PF_ACCEPT_UNMAPPED;
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}
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gsl = gsp->hotspot;
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if(idx >= gsp->nhotspot) {
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gsl2 = g_malloc((idx + 1) * sizeof *gsl2, M_WAITOK | M_ZERO);
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