> -----Original Message----- > From: tao.p...@emc.com [mailto:tao.p...@emc.com] > Sent: Tuesday, November 29, 2011 7:40 AM > To: skinsbur...@parallels.com > Cc: Myklebust, Trond; linux-...@vger.kernel.org; xe...@parallels.com; > ne...@suse.de; net...@vger.kernel.org; linux-ker...@vger.kernel.org; > jbottom...@parallels.com; bfie...@fieldses.org; da...@davemloft.net; > devel@openvz.org > Subject: RE: [PATCH 4/5] NFS: remove RPC PipeFS mount point reference > from blocklayout routines > > > -----Original Message----- > > From: Stanislav Kinsbursky [mailto:skinsbur...@parallels.com] > > Sent: Tuesday, November 29, 2011 8:19 PM > > To: Peng, Tao > > Cc: trond.mykleb...@netapp.com; linux-...@vger.kernel.org; Pavel > > Emelianov; ne...@suse.de; net...@vger.kernel.org; > > linux-ker...@vger.kernel.org; James Bottomley; bfie...@fieldses.org; > > da...@davemloft.net; devel@openvz.org > > Subject: Re: [PATCH 4/5] NFS: remove RPC PipeFS mount point reference > > from blocklayout routines > > > > 29.11.2011 16:00, tao.p...@emc.com пишет: > > >> -----Original Message----- > > >> From: linux-nfs-ow...@vger.kernel.org > > >> [mailto:linux-nfs-ow...@vger.kernel.org] On Behalf Of > > Stanislav > > >> Kinsbursky > > >> Sent: Tuesday, November 29, 2011 6:11 PM > > >> To: trond.mykleb...@netapp.com > > >> Cc: linux-...@vger.kernel.org; xe...@parallels.com; ne...@suse.de; > > >> net...@vger.kernel.org; linux- ker...@vger.kernel.org; > > >> jbottom...@parallels.com; bfie...@fieldses.org; > > >> da...@davemloft.net; devel@openvz.org > > >> Subject: [PATCH 4/5] NFS: remove RPC PipeFS mount point reference > > >> from blocklayout routines > > >> > > >> This is a cleanup patch. We don't need this reference anymore, > > >> because blocklayout pipes dentries now creates and destroys in > > >> per-net operations and on PipeFS mount/umount notification. > > >> Note that nfs4blocklayout_register_net() now returns 0 instead of > > >> -ENOENT in case of PipeFS superblock absence. This is ok, because > > >> blocklayout pipe dentry will be created on PipeFS mount event. > > > When is the "pipefs mount event" going to happen? When inserting > > > kernel modules or when user issues > > mount command? > > > > > > > When user issues mount command. > > Kernel mounts of PipeFS has been removed with all these patch sets > > I've sent already. > Then it is going to break blocklayout user space program blkmapd, which is > stared before mounting any file system and it tries to open the pipe file > when started.
Why on earth is blkmapd doing this instead of listening for file creation notifications like the other rpc_pipefs daemons do? Trond _______________________________________________ Devel mailing list Devel@openvz.org https://openvz.org/mailman/listinfo/devel
