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Differential D27225 Diff 79593 sys/geom/virstor/g_virstor.c

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sys/geom/virstor/g_virstor.c

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/* /*
* Initialise GEOM class (per-class callback) * Initialise GEOM class (per-class callback)
*/ */
static void static void
g_virstor_init(struct g_class *mp __unused) g_virstor_init(struct g_class *mp __unused)
{ {
/* Catch map struct size mismatch at compile time; Map entries must /* Catch map struct size mismatch at compile time; Map entries must
* fit into MAXPHYS exactly, with no wasted space. */ * fit into maxphys exactly, with no wasted space. */
CTASSERT(VIRSTOR_MAP_BLOCK_ENTRIES*VIRSTOR_MAP_ENTRY_SIZE == MAXPHYS); MPASS(VIRSTOR_MAP_BLOCK_ENTRIES * VIRSTOR_MAP_ENTRY_SIZE == maxphys);
/* Init UMA zones, TAILQ's, other global vars */ /* Init UMA zones, TAILQ's, other global vars */
} }
/* /*
* Finalise GEOM class (per-class callback) * Finalise GEOM class (per-class callback)
*/ */
static void static void
▲ Show 20 Lines • Show All 1,079 Lines • ▼ Show 20 Linesvirstor_check_and_run(struct g_virstor_softc *sc)
/* Read in the allocation map */ /* Read in the allocation map */
LOG_MSG(LVL_DEBUG, "Reading map for %s from %s", sc->geom->name, LOG_MSG(LVL_DEBUG, "Reading map for %s from %s", sc->geom->name,
sc->components[0].gcons->provider->name); sc->components[0].gcons->provider->name);
off = count = n = 0; off = count = n = 0;
while (count < sc->map_size) { while (count < sc->map_size) {
struct g_virstor_map_entry *mapbuf; struct g_virstor_map_entry *mapbuf;
size_t bs; size_t bs;
bs = MIN(MAXPHYS, sc->map_size - count); bs = MIN(maxphys, sc->map_size - count);
if (bs % sc->sectorsize != 0) { if (bs % sc->sectorsize != 0) {
/* Check for alignment errors */ /* Check for alignment errors */
bs = rounddown(bs, sc->sectorsize); bs = rounddown(bs, sc->sectorsize);
if (bs == 0) if (bs == 0)
break; break;
LOG_MSG(LVL_ERROR, "Trouble: map is not sector-aligned " LOG_MSG(LVL_ERROR, "Trouble: map is not sector-aligned "
"for %s on %s", sc->geom->name, "for %s on %s", sc->geom->name,
sc->components[0].gcons->provider->name); sc->components[0].gcons->provider->name);
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