On Tue, Mar 03, 2015 at 05:37:31PM -0800, Gwendal Grignou wrote: > At least, to base the device format on whether we are running on a 32 > bit or 64 bit architecture does not make sense. Yes, it does. Note that on 32bit ones stat64(2) *will* return an arbitrary value. On 64bit ones stat(2) will. > If a tool calling stat(2) can not handle 12 bit major/20 bits minor, > it would already break or about to break when running on a 64 bit > machine. > > Regarding SCSI, the 17th disk will use SCSI_DISK1_MAJOR (65). Only the > 257th disk will use the first scsi major (8) again and need a minor > greater than 256. (see sd_major() in drivers/scsi/sd.c for details). *nod* It's been years since I last looked at sd.c, TBH... Said that, with NFS it's definitely a minor per superblock, and it's not the only set_anon_super() user. Having a bunch of filesystems mounted over NFS will suffice... -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
