Messages in this thread | | | From | Andries.Brouwer@cwi ... | Date | Fri, 1 Nov 2002 21:57:49 +0100 (MET) | Subject | Re: mount |
| |
> I'll feed it
OK
> statbuf.st_rdev>>8 > ^^^
> switching to major(statbuf.st_rdev) would probably be a good idea
Now that you suggested this, done. But a good idea?
Since 1995 I have off and on run a system with 32-bit or 64-bit dev_t. But <sys/sysmacros.h> has # define major(dev) ((int)(((dev) >> 8) & 0xff)) # define minor(dev) ((int)((dev) & 0xff)) and I really mean statbuf.st_rdev>>8 not (statbuf.st_rdev>>8) & 0xff so a private macro major() is needed, different from the glibc one.
Andries
[You must have seen my setup a few times: if all nonzero bits are among the last 16, then read it as 8+8, otherwise, if all nonzero bits are among the last 32, read it as 16+16, otherwise read it as 32+32. That way old device numbers do not change when dev_t grows. That way some ambiguity in isofs mastering is resolved cleanly.] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |