patch-2.1.92 linux/ipc/shm.c

• Lines: 15
• Date: Mon Mar 30 00:21:41 1998
• Orig file: v2.1.91/linux/ipc/shm.c
• Orig date: Tue Mar 10 10:03:35 1998

diff -u --recursive --new-file v2.1.91/linux/ipc/shm.c linux/ipc/shm.c
@@ -632,12 +632,14 @@
 {
 	struct vm_area_struct *shmd, *shmdnext;
 
+	lock_kernel();
 	for (shmd = current->mm->mmap; shmd; shmd = shmdnext) {
 		shmdnext = shmd->vm_next;
 		if (shmd->vm_ops == &shm_vm_ops
 		    && shmd->vm_start - shmd->vm_offset == (ulong) shmaddr)
 			do_munmap(shmd->vm_start, shmd->vm_end - shmd->vm_start);
 	}
+	unlock_kernel();
 	return 0;
 }