CVS commit: [netbsd-7] src/sys/fs/puffs

["SAITOH Masanobu" <msaitoh%netbsd.org@localhost>]

Module Name:    src
Committed By:   msaitoh
Date:           Sun Nov  9 10:07:31 UTC 2014

Modified Files:
        src/sys/fs/puffs [netbsd-7]: puffs_vnops.c

Log Message:
Pull up following revision(s) (requested by manu in ticket #193):
        sys/fs/puffs/puffs_vnops.c: revision 1.198
PUFFS direct I/O cache fix
There are a few situations where we must take care of the cache if
direct
I/O was enabled:
- if we do direct I/O for write but not for read, then any write must
  invalidate the cache so that a reader gets the written data and not
  the not-updated cache.
- if we used a vnode without direct I/O and it is enabled for writing,
  we must flush the cache before compeling the open operation, so that
  the cachec write are not lost.
And at inactive time, we wipe direct I/O flags so that a new open
without
direct I/O does not inherit direct I/O.


To generate a diff of this commit:
cvs rdiff -u -r1.182.2.9 -r1.182.2.10 src/sys/fs/puffs/puffs_vnops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.