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document PUFFS_KFLAG_WTCACHE and PUFFS_KFLAG_IAONDEMAND

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pooka 2007-05-09 13:54:08 +00:00
parent 06dd177014
commit e5a894536c
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lib/libpuffs/puffs.3
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@ -1,4 +1,4 @@
.\" $NetBSD: puffs.3,v 1.20 2007/05/01 15:58:00 pooka Exp $
.\" $NetBSD: puffs.3,v 1.21 2007/05/09 13:54:08 pooka Exp $
.\"
.\" Copyright (c) 2006, 2007 Antti Kantee. All rights reserved.
.\"
@ -23,7 +23,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd May 1, 2007
.Dd May 9, 2007
.Dt PUFFS 3
.Os
.Sh NAME
@ -164,6 +164,23 @@ for example).
This flag requests that all operations are sent to userspace.
Normally the kernel shortcircuits unimplemented operations.
This flag is mostly useful for debugging purposes.
.It Dv PUFFS_KFLAG_WTCACHE
Set the file system cache behaviour as write-through.
This means that all writes are immediately issued to the file server
instead of being flushed in file system sync.
This is useful especially for distributed file systems.
.It Dv PUFFS_KFLAG_IAONDEMAND
Issue inactive only on demand.
If a file server defines the inactive method, call it only if the file
server has explicitly requested that inactive be called for the
node in question.
Once inactive has been called for a node, it will not be called
again unless the request to call inactive is reissued by the file server.
See
.Fn puffs_setback
in
.Xr puffs_ops 3
for more information.
.It Dv PUFFS_FLAG_BUILDPATH
The framework will build a complete path name, which is supplied
with each operation and can be found from the