freebsd-dev/sys/geom
Pawel Jakub Dawidek 565bc10111 Add a very simple and small GEOM class - ZERO.
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
2005-07-25 10:03:16 +00:00
..
bde Comment typo 2005-07-20 18:08:16 +00:00
concat Before calling g_orphan_provider(), add G_PF_WITHER flag, so GEOM will know 2005-07-17 13:15:02 +00:00
gate Add CANCEL command which allows to remove one request from the queue or 2005-07-08 21:08:53 +00:00
label
mirror After provider creation!! 2005-05-25 15:54:17 +00:00
nop
raid3
shsec
stripe Before calling g_orphan_provider(), add G_PF_WITHER flag, so GEOM will know 2005-07-17 13:15:02 +00:00
uzip
vinum *) Implement round-robin reads for multiplex volumes. 2005-07-15 13:38:06 +00:00
zero Add a very simple and small GEOM class - ZERO. 2005-07-25 10:03:16 +00:00
geom_aes.c
geom_apple.c
geom_bsd_enc.c
geom_bsd.c
geom_ccd.c
geom_ctl.c
geom_ctl.h
geom_dev.c
geom_disk.c
geom_disk.h
geom_dump.c
geom_event.c
geom_fox.c
geom_gpt.c
geom_int.h
geom_io.c
geom_kern.c
geom_mbr_enc.c
geom_mbr.c Implement a gctl handler and the verb "write MBR" which can be used to 2005-07-15 08:00:44 +00:00
geom_pc98_enc.c
geom_pc98.c Merged from geom_mbr.c revisions 1.62 and 1.66. 2005-07-15 15:29:45 +00:00
geom_slice.c
geom_slice.h
geom_subr.c
geom_sunlabel_enc.c
geom_sunlabel.c
geom_vfs.c
geom_vfs.h
geom_vol_ffs.c
geom.h
notes