On Tue, 2014-08-26 at 20:36 +0300, Boaz Harrosh wrote: > Meanwhile without any explanations, these will come tomorrow, I'm attaching > the most interesting bit which you have not seen before. > > If you want you can inspect a preview of what's to come here: > http://git.open-osd.org/gitweb.cgi?p=pmem.git;a=summary Regarding the top patch "pmem: KISS, remove the all pmem_major registration", I like that we're getting rid of lots of dead code. The only issue I have is that I'm pretty sure we aren't supposed to register our disks directly with a major of BLOCK_EXT_MAJOR. I think we still need to register our own major via register_blkdev(), and use that. I'm fine with getting rid of the module parameter though, and always getting a major dynamically. If you look at the other block devices that use the GENHD_FL_EXT_DEVT flag (nvme, loop, md, etc.) they all register their own major. You can't see this major by doing 'ls -l' on the resulting devices in /dev, but you can see it by looking at /proc/devices: # ls -l /dev/pmem0 brw-rw---- 1 root disk 259, 0 Aug 26 12:37 /dev/pmem0 # grep pmem /proc/devices 250 pmem - Ross -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>