----- Original Message ----- > From: "Dean" <seattleplus@xxxxxxxxx> > To: "Alexandre Depoutovitch" <adepoutovitch@xxxxxxxxxx> > Cc: linux-nfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx > Sent: Friday, May 11, 2012 2:36:52 PM > Subject: Re: [PATCH RFC v2] Performing direct I/O on sector-aligned requests > > > > On 4/29/12 2:03 PM, Alexandre Depoutovitch wrote: > > A new flag is exposed to users through /proc/fs/nfsd/direct_io > > node. The > > default value of 1 results in the above behavior. Writing 0 to the > > node > > turns off the direct I/O completely, and forces NFS daemon to > > always use > > buffered IO (as it has done before). Writing 2 to the node tells > > NFS > > daemon to use direct I/O whenever possible, even if requests are > > aligned > > at file system block boundary. > > Not sure if this was previously discussed, but I assume the default > would remain the same (value 0)? > > Dean > > Yes. The default should be 0 (the behavior will not change, unless the user explicitly enables it). -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
