diff options
| author | jake <jake@FreeBSD.org> | 2000-11-22 07:42:04 +0000 |
|---|---|---|
| committer | jake <jake@FreeBSD.org> | 2000-11-22 07:42:04 +0000 |
| commit | 0c0be4e82677a2d8fb49b7a70676bf359e7360b0 (patch) | |
| tree | a0c32260edfde6d861e66b11172147608684043e /sys/vm/vm_object.c | |
| parent | 1b544875743d53491a096b0c757bf30ce73bb83b (diff) | |
| download | FreeBSD-src-0c0be4e82677a2d8fb49b7a70676bf359e7360b0.zip FreeBSD-src-0c0be4e82677a2d8fb49b7a70676bf359e7360b0.tar.gz | |
Protect the following with a lockmgr lock:
allproc
zombproc
pidhashtbl
proc.p_list
proc.p_hash
nextpid
Reviewed by: jhb
Obtained from: BSD/OS and netbsd
Diffstat (limited to 'sys/vm/vm_object.c')
| -rw-r--r-- | sys/vm/vm_object.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index e5403d1..0b079c3 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -1620,12 +1620,16 @@ vm_object_in_map( object) vm_object_t object; { struct proc *p; + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) { if( !p->p_vmspace /* || (p->p_flag & (P_SYSTEM|P_WEXIT)) */) continue; - if( _vm_object_in_map(&p->p_vmspace->vm_map, object, 0)) + if( _vm_object_in_map(&p->p_vmspace->vm_map, object, 0)) { + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); return 1; + } } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); if( _vm_object_in_map( kernel_map, object, 0)) return 1; if( _vm_object_in_map( kmem_map, object, 0)) |
