Peter Rajnoha 4891a735d3 udev: recognize DM_DISABLE_UDEV environment variable ...

Setting this environment variable will cause a full fallback
to old direct node and symlink management in libdevmapper and lvm2.

It means:

 - disabling udev synchronization
   (--noudevsync in dmsetup and --noudevsync + activation/udev_sync=0
    lvm2 config)
 - disabling dm and any subsystem related udev rules
   (--noudevrules in dmsetup and activation/udev_rules=0 lvm2 config)
 - management of nodes/symlinks under /dev directly by libdevmapper/lvm2
   (--verifyudev in dmsetup and activation/verify_udev_operations=1
    lvm2 config)
 - not obtaining any device list from udev database
   (devices/obtain_device_list_from_udev=0 lvm2 config)

Note: we could set all of these before - there's no functional change!
However the DM_DISABLE_UDEV environment variable is a nice shortcut
to make it easier for libdevmapper users so that one can switch off all
of the udev management off at one go directly on the command line,
without a need to modify any source or add any extra switches.

2012-11-29 14:03:48 +01:00

..

errors.h

pre-release tidy up

2009-06-30 18:39:31 +00:00

toolcontext.c

udev: recognize DM_DISABLE_UDEV environment variable

2012-11-29 14:03:48 +01:00

toolcontext.h

Implement devices/global_filter.

2012-09-26 14:49:15 +02:00