git: kernel - Improve pageout daemon & memory pressure detection w/tmpfs

[Matthew Dillon]

commit f84f7e8121e08af5d133a8b38a385aaca6c66e29
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Jan 31 20:52:46 2012 -0800

    kernel - Improve pageout daemon & memory pressure detection w/tmpfs
    
    * PG_NEED_COMMIT pages are unwired from the buffer cache they are now
      unconditionally placed on the active queue, even if 'activate' is not
      set.
    
    * This results in non-freeable tmpfs pages remaining in the active queue
      most of the time.  They will be cycled into the inactive queue and flushed
      out if swap is present as per normal pageout daemon operation,
    
      When swap is not present or is full, these pages are reactivated
      unconditionally.

Summary of changes:
 sys/vm/vm_page.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f84f7e8121e08af5d133a8b38a385aaca6c66e29


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