On Fri, Mar 27, 2015 at 10:33 AM, Mkrtchyan, Tigran <tigran.mkrtchyan@xxxxxxx> wrote: > which means that even I I set roc flag, I still need to recall layout. No. It means that the layout is automatically returned on last close and/or delegreturn. If you want it returned earlier then you need to send a cb_layoutrecall. > ----- Original Message ----- >> From: "Trond Myklebust" <trond.myklebust@xxxxxxxxxxxxxxx> >> To: "Mkrtchyan, Tigran" <tigran.mkrtchyan@xxxxxxx> >> Cc: "linux-nfs list" <linux-nfs@xxxxxxxxxxxxxxx> >> Sent: Friday, March 27, 2015 3:08:39 PM >> Subject: Re: pNFS layout, ROC and multiple opens > >> On Fri, Mar 27, 2015 at 7:24 AM, Mkrtchyan, Tigran >> <tigran.mkrtchyan@xxxxxxx> wrote: >>> >>> >>> Hi folks, >>> >>> we run into following issue: >>> >>> on a client host we have two processes - A and B. >>> Process A opens a file and reads some data: >>> >>> OPEN -> LAYOUTGET -> READ. >>> Notice, that layout has a roc set to true. >>> >>> Process B opens the same file: >>> >>> OPEN -> READ. >>> >>> Client obviously re-used layout information. >>> Now, process A closes the file and as a result, >>> layout becomes invalid. >> >> No it doesn't. See the errata. >> >> Cheers >> Trond -- Trond Myklebust Linux NFS client maintainer, PrimaryData trond.myklebust@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
