Linus Torvalds wrote:
>
> On Thu, 3 Jan 2002, Jeff Garzik wrote:
> >
> > reiserfs is blindly storing the kernel's kdev_t value raw to disk.
>
> Well, it won't do that. You have to use "kdev_t_to_nr()", which (whenever
> the format of kdev_t changes) will still be identical in the low 16 bits.
>
> Now, if somebody actually has the raw "kdev_t" in their on-disk
> structures, that's a real problem, but I don't think anybody does.
> Certainly I didn't see reiserfs do it (but it may well be missing a few
> "kdev_t_to_nr()" calls)
AFAICS it does:
include/linux/reiserfs.h:
#define sd_v1_rdev(sdp) (le32_to_cpu((sdp)->u.sd_rdev))
#define set_sd_v1_rdev(sdp,v) ((sdp)->u.sd_rdev = cpu_to_le32(v))
[jgarzik@rum reiserfs]$ grep v1_rdev *.c
inode.c: rdev = sd_v1_rdev(sd);
inode.c: set_sd_v1_rdev(sd_v1, inode->i_rdev );
In the first inode.c line shown here, it passes the value received
directly to init_special_inode.
Jeff
-- Jeff Garzik | Only so many songs can be sung Building 1024 | with two lips, two lungs, and one tongue. MandrakeSoft | - nomeansno - 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/
This archive was generated by hypermail 2b29 : Mon Jan 07 2002 - 21:00:23 EST