Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-12 Thread J. Bruce Fields
On Wed, Sep 12, 2012 at 05:20:17PM +0200, Miklos Szeredi wrote: > "J. Bruce Fields" writes: > > > On Tue, Sep 11, 2012 at 10:56:52PM +0200, Miklos Szeredi wrote: > >> "J. Bruce Fields" writes: > >> > >> >> > Secondly when using an NFSv3 R/O lower layer the filesystem > >> >> > permissions > >>

Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-12 Thread Miklos Szeredi
"J. Bruce Fields" writes: > On Tue, Sep 11, 2012 at 10:56:52PM +0200, Miklos Szeredi wrote: >> "J. Bruce Fields" writes: >> >> >> > Secondly when using an NFSv3 R/O lower layer the filesystem permissions >> >> > check refuses permission to write to the inode which prevents us from >> >> > copyi

Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-11 Thread J. Bruce Fields
On Tue, Sep 11, 2012 at 10:56:52PM +0200, Miklos Szeredi wrote: > "J. Bruce Fields" writes: > > >> > Secondly when using an NFSv3 R/O lower layer the filesystem permissions > >> > check refuses permission to write to the inode which prevents us from > >> > copying it up even though we have a writ

Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-11 Thread Miklos Szeredi
"J. Bruce Fields" writes: >> > Secondly when using an NFSv3 R/O lower layer the filesystem permissions >> > check refuses permission to write to the inode which prevents us from >> > copying it up even though we have a writable upper layer. (With an ext4 >> > lower layer the inode check will suc

Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-07 Thread J. Bruce Fields
On Fri, Sep 07, 2012 at 08:35:36AM +0200, Miklos Szeredi wrote: > On Thu, Sep 6, 2012 at 5:56 PM, Andy Whitcroft wrote: > > During some testing here we discovered that we could not successfully > > use a NFS as the lower layer for overlayfs. There are two separate issues: > > > > Firstly when usi

Re: [RFC PATCH 0/2] issues with NFS filesystems as lower layer

2012-09-06 Thread Miklos Szeredi
On Thu, Sep 6, 2012 at 5:56 PM, Andy Whitcroft wrote: > During some testing here we discovered that we could not successfully > use a NFS as the lower layer for overlayfs. There are two separate issues: > > Firstly when using an NFSv4 lower layer we tickle an issue when copying > up the xattrs fo