d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Assert that the new entry is inserted into the right location in the

Browse Source 
map entries list, and that it does not overlap with the previous and
next entries.

Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2014-06-20 07:01:53 +00:00
parent 2a87457c75
commit 5831f5fc52
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/vm/vm_map.c
View File

@ -940,6 +940,15 @@ vm_map_entry_link(vm_map_t map,
"vm_map_entry_link: map %p, nentries %d, entry %p, after %p", map,
map->nentries, entry, after_where);
VM_MAP_ASSERT_LOCKED(map);
KASSERT(after_where == &map->header ||
after_where->end <= entry->start,
("vm_map_entry_link: prev end %jx new start %jx overlap",
(uintmax_t)after_where->end, (uintmax_t)entry->start));
KASSERT(after_where->next == &map->header ||
entry->end <= after_where->next->start,
("vm_map_entry_link: new end %jx next start %jx overlap",
(uintmax_t)entry->end, (uintmax_t)after_where->next->start));
map->nentries++;
entry->prev = after_where;
entry->next = after_where->next;