git: kernel - Implement UDEVWAIT ioctl for /dev/udev

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 84f2d39f2c44c4384ba15de409abf3ff715a93ad
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Wed Oct 24 19:53:08 2012 -0700

    kernel - Implement UDEVWAIT ioctl for /dev/udev
    
    * Implement an ioctl which interacts with a sequence number and waits for
      a new event, so callers can avoid polling for events.

Summary of changes:
 sys/kern/kern_udev.c |   73 +++++++++++++++++++++++++++++++++++++------------
 sys/sys/udev.h       |    3 +-
 2 files changed, 57 insertions(+), 19 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/84f2d39f2c44c4384ba15de409abf3ff715a93ad


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