Author: kib
Date: Sun Apr 12 07:03:26 2015
New Revision: 281456
URL: https://svnweb.freebsd.org/changeset/base/281456
Log:
MFC r281120:
Assert that an msdosfs mount is not read-only when FAT modifications
are requested.
Modified:
stable/10/sys/fs/msdosfs/msdosfs_fat.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/fs/msdosfs/msdosfs_fat.c
==============================================================================
--- stable/10/sys/fs/msdosfs/msdosfs_fat.c Sun Apr 12 06:54:53 2015
(r281455)
+++ stable/10/sys/fs/msdosfs/msdosfs_fat.c Sun Apr 12 07:03:26 2015
(r281456)
@@ -399,6 +399,8 @@ usemap_alloc(pmp, cn)
MSDOSFS_ASSERT_MP_LOCKED(pmp);
+ KASSERT((pmp->pm_flags & MSDOSFSMNT_RONLY) == 0,
+ ("usemap_alloc on ro msdosfs mount"));
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]));
@@ -415,6 +417,8 @@ usemap_free(pmp, cn)
{
MSDOSFS_ASSERT_MP_LOCKED(pmp);
+ KASSERT((pmp->pm_flags & MSDOSFSMNT_RONLY) == 0,
+ ("usemap_free on ro msdosfs mount"));
pmp->pm_freeclustercount++;
pmp->pm_flags |= MSDOSFS_FSIMOD;
KASSERT((pmp->pm_inusemap[cn / N_INUSEBITS] & (1 << (cn % N_INUSEBITS)))
@@ -715,6 +719,8 @@ chainalloc(pmp, start, count, fillwith,
u_long cl, n;
MSDOSFS_ASSERT_MP_LOCKED(pmp);
+ KASSERT((pmp->pm_flags & MSDOSFSMNT_RONLY) == 0,
+ ("chainalloc on ro msdosfs mount"));
for (cl = start, n = count; n-- > 0;)
usemap_alloc(pmp, cl++);
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