From: Vincent Roqueta <vincent.roqueta@ext.bull.net>
Subject: Re: When does NFSv3 client uses FILE_SYNC?
Date: Wed, 10 Nov 2004 17:22:41 +0100
Message-ID: <200411101722.41797.vincent.roqueta@ext.bull.net>
References: <150dc27e04111008051d64dbd1@mail.gmail.com> <200411101721.40039.vincent.roqueta@ext.bull.net>
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Le mercredi 10 Novembre 2004 17:21, vous avez =E9crit=A0:
 Le mercredi 10 Novembre 2004 17:05, Oren D a =E9crit=A0:
 > Hi all,
 >
 > Can someone please list for me the conditions under which an NFSv3
 > client would send FILE_SYNC write requests?
 >
 > I have the filesystem exported on the server with the sync option
 > (which is not supposed to prevent the client from writing with
 > UNSTABLE),
 > and mounted from the client with the default mount options.
 >
 > And still i have a user-space application that generates WRITEs with
 > FILE_SYNC!
 >
 > This is what I know that can make the client write using FILE_SYNC:
 > - mount -o sync
 > - open(...,O_SYNC)

 What kernel is it?
 For a 2.6.x one, if the export's sync option is set all request will be
 synchronised, (even if the file is opened async... )

 (I remember some problems with that... )


 Vincent


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