da0fa3b3e0
It creates very huge provider (41PB) /dev/gzero. On BIO_READ request it zero-fills bio_data and on BIO_WRITE it does nothing. You can also set kern.geom.zero.clear sysctl to 0 to do nothing even for BIO_READ. I'm using it for performance testing where it is very helpful. MFC after: 3 days |
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.. | ||
geom_apple | ||
geom_bde | ||
geom_bsd | ||
geom_ccd | ||
geom_concat | ||
geom_fox | ||
geom_gate | ||
geom_gpt | ||
geom_label | ||
geom_mbr | ||
geom_mirror | ||
geom_nop | ||
geom_pc98 | ||
geom_raid3 | ||
geom_shsec | ||
geom_stripe | ||
geom_sunlabel | ||
geom_uzip | ||
geom_vinum | ||
geom_vol_ffs | ||
geom_zero | ||
Makefile | ||
Makefile.inc |