On 8/26/14, 5:55 AM, David Sterba wrote: > On Thu, Aug 21, 2014 at 08:08:57PM +0200, Goffredo Baroncelli wrote: >> Of course I (we) don't care cdrom and/or floppy, but this raises >> the question: are there other block devices which aren't showed in >> proc/partitions ? > > cdrom appears as /dev/sr0, floppy is /dev/fd0 if the respective modules > are loaded, no breakage here. > >> I am thinking to some less common hardware like >> NON USB sd disk (I saw this kind of hardware, but now I don't have >> it in my hands....). > > A block device whose driver calls register_blkdev should appear in > proc/partitions, if not then I think it's a bug or a very non-standard > interface. > > I don't know about any other cases where full /dev scan would reveal > something that /proc/partitions not, so I guess it's safe to remove it.
Yesterday, Chris did mention <something something mumble> about /dev/mapper/* [12:57] <cmason> I got inconsistent results from /proc/partitions [12:57] <cmason> this was 3 years ago now [12:58] <cmason> it didn't find everything for dm devices, yeah [12:58] <cmason> especially dm multipath got really confused and I'll be honest, I didn't test with devicemapper devices, much less dm multipath, so I suppose that's warranted prior to removal. I'll see what I can do. If there's a problem, I bet there's a solution that doesn't involve scanning everything under /dev ... -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
