git: kernel - Cleanup vfs_lock & ref-count states states (2)

[Matthew Dillon]

commit cb3297fb725f5144dbef8f4e961a57e5c94df96a
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Oct 22 09:23:48 2013 -0700

    kernel - Cleanup vfs_lock & ref-count states states (2)
    
    * Adjust trigger points such that under normal operation vnlru_proc()
      handles cleaning up extra vnodes.  If this is not sufficient then
      the synchronous cleanup code will kick in at higher levels.
    
    * Adjust vnode->v_act handling and try to take into account vnodes
      with large memory objects (which we would rather reclaim later and
      not sooner).  This takes over functionality from vlru_reclaim().
    
    * Remove the vlrureclaim() mount-scanning infrastructure.  vnlru_proc()
      now just calls freesomevnodes().  This should now be sufficient.  This
      removes significant locking overheads during steady-state operation.

Summary of changes:
 sys/kern/vfs_lock.c  | 113 +++++++++----------
 sys/kern/vfs_mount.c | 298 ++-------------------------------------------------
 sys/kern/vfs_subr.c  |   6 ++
 3 files changed, 74 insertions(+), 343 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/cb3297fb725f5144dbef8f4e961a57e5c94df96a


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