freebsd-dev/sys/geom
Andriy Gapon 8f128ff559 g_vfs_open: allow only one mount per device vnode
In other words, deny multiple read-only mounts of the same device.
Shared read-only mounts should theoretically be possible, but,
unfortunately, can not be implemented correctly using current
buffer cache code/interface and results in an eventual system crash.
Also, using nullfs seems to be a more efficient way to achieve the same
goal.

This gets us back to where we were before GEOM and where other BSDs are.

Submitted by:	pjd (idea for checking for shared mounting)
Discussed with:	phk, pjd
Silence from:	fs@, geom@
MFC after:	2 weeks
2010-04-03 08:53:53 +00:00
..
bde
cache
concat Make geom_concat to passthrough stripe parameters of the first component, 2009-12-24 14:32:21 +00:00
eli Remove pointless assignment. 2010-01-25 16:58:58 +00:00
gate Simplify loops. 2010-03-18 13:11:43 +00:00
journal
label Provide a set of sysctls and tunables to disable device node creation 2009-11-28 11:57:43 +00:00
linux_lvm
mirror Move wakeup() out of mutex to reduce contention. 2010-01-05 10:30:56 +00:00
mountver Remove unused variable. 2010-01-25 16:10:22 +00:00
multipath Change how multipath labels are created and managed. This makes it easier 2010-03-29 18:04:06 +00:00
nop
part Export the UUID of the partition in the XML. The partition UUID is used 2010-01-30 23:13:19 +00:00
raid3 Move wakeup() out of mutex to reduce contention. 2010-01-05 10:52:21 +00:00
shsec
stripe Correct comment. 2010-02-18 22:28:12 +00:00
uzip Change the way in which zero stripesize is handled. Instead of reporting 2010-01-06 13:14:37 +00:00
vinum - Set missing flag when initiating a plex rebuild with the rebuildparity 2010-03-08 21:16:28 +00:00
virstor Prevent NULL deference by checking return value of 2010-02-02 22:25:22 +00:00
zero
geom_aes.c
geom_bsd_enc.c
geom_bsd.c
geom_ccd.c
geom_ctl.c
geom_ctl.h
geom_dev.c Add BIO_DELETE support to ada(4): 2009-12-28 20:08:01 +00:00
geom_disk.c
geom_disk.h
geom_dump.c Escape characters unsafe for XML output in GEOM class, instance and 2010-03-20 16:16:13 +00:00
geom_event.c
geom_fox.c
geom_int.h
geom_io.c Do not fetch precise time of request start when stats collection disabled. 2010-03-24 18:04:25 +00:00
geom_kern.c
geom_mbr_enc.c
geom_mbr.c
geom_pc98_enc.c
geom_pc98.c
geom_redboot.c - Give geom_redboot taste of flash/spi. Now there is another provider 2010-02-03 01:12:19 +00:00
geom_slice.c Change the way in which zero stripesize is handled. Instead of reporting 2010-01-06 13:14:37 +00:00
geom_slice.h
geom_subr.c Log attach just like we log detach. 2010-02-18 22:27:38 +00:00
geom_sunlabel_enc.c
geom_sunlabel.c
geom_vfs.c g_vfs_open: allow only one mount per device vnode 2010-04-03 08:53:53 +00:00
geom_vfs.h
geom_vol_ffs.c
geom.h
notes