git: kernel - KVABIO allocbuf() optimization

[Matthew Dillon]

commit 118ce231a81111ce55a8db194ff2770c74fcdf79
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Oct 4 20:28:55 2017 -0700

    kernel - KVABIO allocbuf() optimization
    
    * When using allocbuf() to set bufsize to 0 during buffer reuse,
      do not bother synchronizing the pmap.

Summary of changes:
 sys/kern/vfs_bio.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/118ce231a81111ce55a8db194ff2770c74fcdf79


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