git: DragonFly_RELEASE_5_4 kernel - Add /dev/part-by-label

[Matthew Dillon]

commit 51879fccc004db7c3eba56f92f2eb75494e6b12c
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Feb 27 22:36:27 2019 -0800

    kernel - Add /dev/part-by-label
    
    * The DragonFly disklabel has a 'label' field which accepts up to
      a 63 byte ascii label.
    
    * When this field is not empty, the kernel will now create a
      "/dev/part-by-label/<label>.<part>" alias.
    
      For example, if the label is FUBAR and you create a label with
      partitions 'a', 'b', and 'd', then you will get:
    
      # ls /dev/part-by-label
      FUBAR.a      FUBAR.b      FUBAR.d
    
    * WARNING!  Duplicate labels will replace each other, so the
      label that shows up will be non-deterministic.
    
    Suggested-by: Aaron LI

Summary of changes:
 sys/kern/subr_disk.c        | 24 +++++++++++++++++++++++-
 sys/kern/subr_disklabel32.c | 19 +++++++++++++++++++
 sys/kern/subr_disklabel64.c | 19 +++++++++++++++++++
 sys/sys/disklabel.h         |  4 ++++
 4 files changed, 65 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/51879fccc004db7c3eba56f92f2eb75494e6b12c


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