Date: Mon, 25 Dec 1995 15:01:06 +0900 From: KATO Takenori <kato@eclogite.eps.nagoya-u.ac.jp> To: current@FreeBSD.ORG Subject: Re: return value of ffs_blkpref() Message-ID: <199512250601.PAA03702@marble.eps.nagoya-u.ac.jp> In-Reply-To: Your message of "Sun, 24 Dec 1995 16:08:18 %2B0900" References: <199512240708.QAA00452@marble.eps.nagoya-u.ac.jp>
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On 24 Dec 1995, I wrote:
> But ffs_clusteralloc doesn't check pref is correct or not.
One of the solution of this problem is as follows:
*** ffs_alloc.c.orig Mon Dec 25 14:53:59 1995
--- ffs_alloc.c Mon Dec 25 14:56:22 1995
***************
*** 1058,1065 ****
*/
if (dtog(fs, bpref) != cg)
bpref = 0;
! else
! bpref = fragstoblks(fs, dtogd(fs, blknum(fs, bpref)));
mapp = &cg_clustersfree(cgp)[bpref / NBBY];
map = *mapp++;
bit = 1 << (bpref % NBBY);
--- 1058,1069 ----
*/
if (dtog(fs, bpref) != cg)
bpref = 0;
! else {
! if (bpref >= fs->fs_size)
! bpref = 0;
! else
! bpref = fragstoblks(fs, dtogd(fs, blknum(fs, bpref)));
! }
mapp = &cg_clustersfree(cgp)[bpref / NBBY];
map = *mapp++;
bit = 1 << (bpref % NBBY);
----
KATO Takenori <kato@eclogite.eps.nagoya-u.ac.jp>
Dept. Earth Planet. Sci., Nagoya Univ., Nagoya 464-01
Voice: +81-52-789-2529 Fax: +81-52-789-3033
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