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ufs: make solaris fsck happy 

Alex Viskovatoff let me know that after copying data to solaris's ufs from
linux, solaris's fsck sees some errors in cylinder summary information.
This is because of solaris expects find some data on another places, then
curernt implementation save it.  This patch fixes this issue.  It is
tested by me, and also Alex reported that it works for him.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Reported-by: Alex Viskovatoff <viskovatoff@imap.cc>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Evgeniy Dushistov 2010-03-10 15:21:55 -08:00 committed by Linus Torvalds
parent b3a0fd4d87
commit ad25ad979a
1 changed files with 7 additions and 2 deletions
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9
fs/ufs/ufs_fs.h
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@ -233,11 +233,16 @@ typedef __u16 __bitwise __fs16;
*/
#define ufs_cbtocylno(bno) \
((bno) * uspi->s_nspf / uspi->s_spc)
#define ufs_cbtorpos(bno) \
#define ufs_cbtorpos(bno) \
((UFS_SB(sb)->s_flags & UFS_CG_SUN) ? \
(((((bno) * uspi->s_nspf % uspi->s_spc) % \
uspi->s_nsect) * \
uspi->s_nrpos) / uspi->s_nsect) \
: \
((((bno) * uspi->s_nspf % uspi->s_spc / uspi->s_nsect \
* uspi->s_trackskew + (bno) * uspi->s_nspf % uspi->s_spc \
% uspi->s_nsect * uspi->s_interleave) % uspi->s_nsect \
* uspi->s_nrpos) / uspi->s_npsect)
* uspi->s_nrpos) / uspi->s_npsect))
/*
* The following macros optimize certain frequently calculated