git: kernel - Rework vfs_timestamp(), adjust default

[Matthew Dillon]

commit d489a79ac396124279de5ab714e72af874d9dad4
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Mar 11 11:57:57 2020 -0700

    kernel - Rework vfs_timestamp(), adjust default
    
    * Rework the vfs_timestamp() precision mode as follows:
    
      0 TSP_SEC		seconds granularity
      1 TSP_HZ		ticks granularity
      2 TSP_USEC		ticks granularity modulo microseconds
      3 TSP_NSEC		ticks granularity modulo nanoseconds
      4 TSP_USEC_PRECISE	precise microseconds (expensive)
      5 TSP_NSEC_PRECISE	precise nanoseconds (expensive)
    
      The default is TSP_USEC (with tick granularity)
    
    * Change numerous bits of code that were calling getmicrotime()
      or calling microtime()/nanotime() explicitly instead of calling
      vfs_timstamp().  procfs and devfs in particular.
    
    Reported-by: mjg

Summary of changes:
 sys/kern/sys_pipe.c                 |  8 ++++++--
 sys/kern/vfs_subr.c                 | 29 ++++++++++++++++++-----------
 sys/sys/pipe.h                      |  1 +
 sys/vfs/devfs/devfs_core.c          |  6 +++---
 sys/vfs/devfs/devfs_vnops.c         | 34 +++++++++++++++++-----------------
 sys/vfs/hammer/hammer_inode.c       |  7 ++++---
 sys/vfs/hammer/hammer_transaction.c | 27 +++++++++++++++------------
 sys/vfs/hammer2/hammer2_subr.c      |  6 +++---
 sys/vfs/procfs/procfs_vnops.c       |  2 +-
 9 files changed, 68 insertions(+), 52 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/d489a79ac396124279de5ab714e72af874d9dad4


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