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Re: kern/42573: DIRBLKSIZ in <ufs/ufs/dir.h> should not beDEV_BSIZE constant
The following reply was made to PR kern/42573; it has been noted by GNATS.
From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
Cc: kern-bug-people%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost,
Subject: Re: kern/42573: DIRBLKSIZ in <ufs/ufs/dir.h> should not beDEV_BSIZE
Date: Mon, 4 Jan 2010 03:51:19 +0900
> My thoughts are the DEV_BSIZE should remain forever as 512
> (cygwin fubar not withstanding).
Probably we need to have some macro which represent
"traditional sector size (which is 512)",
but I don't think we should keep it as DEV_BSIZE.
Anyway we can't use DEV_BSIZE in src/tools as mentioned in
PR toolchain/42555 and toolchain/42574.
> But to make everything fit (eg i386 boot code) the byte alignments
> cannot change - the label has to remain in bytes 512-1203.
Does it? What about "LABELSECTOR" in <machine/disklabel.h>?
Shouldn't sys/arch/i386/stand/mbr/mbr.S be sector size aware?
> (I have a USB memory stick with 2k sectors, the 0x55, 0xaa are in
> bytes 510 and 511 as usual.)
Magic should be at MBR_MAGIC_OFFSET defined in <sys/bootblock.h>
so it doesn't matter of sector size, does it?
Anyway, these are different topic from this PR.
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