git: DragonFly_RELEASE_4_0 kernel - Improve m->hold_count assertions, fix page-zeroing code bug

[Matthew Dillon]

commit 443504bd5a5e28484ff302fb24987b37037cbe11
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Nov 5 11:06:28 2014 -0800

    kernel - Improve m->hold_count assertions, fix page-zeroing code bug
    
    * Improve assertions on m->hold_count to provide more information.
    
    * Fix a bug in vm_page_free_fromq_fast() where an assertion can get
      hit due to a SMP race.  This is only used by the page-zeroing code.

Summary of changes:
 sys/vm/vm_page.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/443504bd5a5e28484ff302fb24987b37037cbe11


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