On Fri, Feb 03, 2017 at 02:50:42PM +0100, Jan Kara wrote: > On Thu 02-02-17 11:28:27, Liu Bo wrote: > > Hi, > > > > On Thu, Feb 02, 2017 at 06:34:02PM +0100, Jan Kara wrote: > > > Provide helper functions for setting up dynamically allocated > > > backing_dev_info structures for filesystems and cleaning them up on > > > superblock destruction. > > > > Just one concern, will this cause problems for multiple superblock cases > > like nfs with nosharecache? > > Can you ellaborate a bit? I've looked for a while what nfs with > nosharecache does but I didn't see how it would influence anything with > bdis... Oh, I missed that bdi_seq was static, then it should be fine. (I was worried about that nfs with nosharecache would have multiple superblocks and if each superblock has a bdi using the same bdi name, nfs-xx.) Thanks for the reply. Thanks, -liubo
