Author: kib
Date: Wed Mar 24 14:43:19 2010
New Revision: 205595
URL: http://svn.freebsd.org/changeset/base/205595
Log:
MFC r204472:
Add assertions for FAT bitmap state.
Modified:
stable/8/sys/fs/msdosfs/msdosfs_fat.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
stable/8/sys/net/ (props changed)
Modified: stable/8/sys/fs/msdosfs/msdosfs_fat.c
==============================================================================
--- stable/8/sys/fs/msdosfs/msdosfs_fat.c Wed Mar 24 14:37:17 2010
(r205594)
+++ stable/8/sys/fs/msdosfs/msdosfs_fat.c Wed Mar 24 14:43:19 2010
(r205595)
@@ -413,7 +413,12 @@ usemap_alloc(pmp, cn)
{
MSDOSFS_ASSERT_MP_LOCKED(pmp);
+
+ KASSERT((pmp->pm_inusemap[cn / N_INUSEBITS] & (1 << (cn % N_INUSEBITS)))
+ == 0, ("Allocating used sector %ld %ld %x", cn, cn % N_INUSEBITS,
+ (unsigned)pmp->pm_inusemap[cn / N_INUSEBITS]));
pmp->pm_inusemap[cn / N_INUSEBITS] |= 1 << (cn % N_INUSEBITS);
+ KASSERT(pmp->pm_freeclustercount > 0, ("usemap_alloc: too little"));
pmp->pm_freeclustercount--;
}
@@ -425,6 +430,9 @@ usemap_free(pmp, cn)
MSDOSFS_ASSERT_MP_LOCKED(pmp);
pmp->pm_freeclustercount++;
+ KASSERT((pmp->pm_inusemap[cn / N_INUSEBITS] & (1 << (cn % N_INUSEBITS)))
+ != 0, ("Freeing unused sector %ld %ld %x", cn, cn % N_INUSEBITS,
+ (unsigned)pmp->pm_inusemap[cn / N_INUSEBITS]));
pmp->pm_inusemap[cn / N_INUSEBITS] &= ~(1 << (cn % N_INUSEBITS));
}
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