git: kernel - Fix tapN creation >= 32 units, fix pty issues >= 32 ptys

[Matthew Dillon]

commit 40986f5e1d8b3b137d67c5dcc94cb5c29bba3750
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Mar 21 18:11:10 2018 -0700

    kernel - Fix tapN creation >= 32 units, fix pty issues >= 32 ptys
    
    * Fix ifconfig tapN create for N >= 32.
    
    * devfs_clone_bitmap_chk(), which only if_tap uses, was returning
      the wrong default value for unit numbers beyond the current
      dynamic size of the bitmap.
    
    * Both devfs_clone_bitmap_chk() and devfs_clone_bitmap_put()
      were improperly using (1 << unit) instead of (1L << unit)
      when masking the 64-bit (long) bitmap elements, resulting in
      chaos for units >= 32.
    
    * This also should fix pty issues >= 32 ptys.
    
    Reported-by: Aaron Li

Summary of changes:
 sys/vfs/devfs/devfs_helper.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/40986f5e1d8b3b137d67c5dcc94cb5c29bba3750


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