On Thu, Jul 25, 2019 at 11:54:18AM -0600, Logan Gunthorpe wrote: > > > On 2019-07-25 11:50 a.m., Matthew Wilcox wrote: > > On Thu, Jul 25, 2019 at 11:23:23AM -0600, Logan Gunthorpe wrote: > >> nvme_get_by_path() is analagous to blkdev_get_by_path() except it > >> gets a struct nvme_ctrl from the path to its char dev (/dev/nvme0). > >> > >> The purpose of this function is to support NVMe-OF target passthru. > > > > I can't find anywhere that you use this in this patchset. > > > > Oh sorry, the commit message is out of date the function was actually > called nvme_ctrl_get_by_path() and it's used in Patch 10.
Instead of by path, could we have configfs take something else, like the unique controller instance or serial number? I know that's different than how we handle blocks and files, but that way nvme core can lookup the cooresponding controller without adding new cdev dependencies.
