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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/ | |||||||||
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