Module Name: src
Committed By: thorpej
Date: Sun Dec 3 15:06:45 UTC 2023
Modified Files:
src/sys/kern: subr_vmem.c
src/sys/sys: vmem_impl.h
Log Message:
Split the boundary tag "type" field into "type" and "flags" fields.
Initialize the flags field to 0 before inserting into an arena's free
tag list.
NFC, but makes diff for a future enhancement smaller.
To generate a diff of this commit:
cvs rdiff -u -r1.113 -r1.114 src/sys/kern/subr_vmem.c
cvs rdiff -u -r1.6 -r1.7 src/sys/sys/vmem_impl.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/subr_vmem.c
diff -u src/sys/kern/subr_vmem.c:1.113 src/sys/kern/subr_vmem.c:1.114
--- src/sys/kern/subr_vmem.c:1.113 Sun Dec 3 14:35:54 2023
+++ src/sys/kern/subr_vmem.c Sun Dec 3 15:06:45 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_vmem.c,v 1.113 2023/12/03 14:35:54 thorpej Exp $ */
+/* $NetBSD: subr_vmem.c,v 1.114 2023/12/03 15:06:45 thorpej Exp $ */
/*-
* Copyright (c)2006,2007,2008,2009 YAMAMOTO Takashi,
@@ -46,7 +46,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_vmem.c,v 1.113 2023/12/03 14:35:54 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_vmem.c,v 1.114 2023/12/03 15:06:45 thorpej Exp $");
#if defined(_KERNEL) && defined(_KERNEL_OPT)
#include "opt_ddb.h"
@@ -255,6 +255,7 @@ bt_refill_locked(vmem_t *vm)
vm->vm_nfreetags <= BT_MINRESERVE) {
bt = LIST_FIRST(&vmem_btag_freelist);
LIST_REMOVE(bt, bt_freelist);
+ bt->bt_flags = 0;
LIST_INSERT_HEAD(&vm->vm_freetags, bt, bt_freelist);
vm->vm_nfreetags++;
vmem_btag_freelist_count--;
@@ -271,6 +272,7 @@ bt_refill_locked(vmem_t *vm)
VMEM_LOCK(vm);
if (bt == NULL)
break;
+ bt->bt_flags = 0;
LIST_INSERT_HEAD(&vm->vm_freetags, bt, bt_freelist);
vm->vm_nfreetags++;
}
Index: src/sys/sys/vmem_impl.h
diff -u src/sys/sys/vmem_impl.h:1.6 src/sys/sys/vmem_impl.h:1.7
--- src/sys/sys/vmem_impl.h:1.6 Sat Dec 2 19:11:52 2023
+++ src/sys/sys/vmem_impl.h Sun Dec 3 15:06:45 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: vmem_impl.h,v 1.6 2023/12/02 19:11:52 thorpej Exp $ */
+/* $NetBSD: vmem_impl.h,v 1.7 2023/12/03 15:06:45 thorpej Exp $ */
/*-
* Copyright (c)2006 YAMAMOTO Takashi,
@@ -128,7 +128,8 @@ struct vmem_btag {
#define bt_freelist bt_u.u_freelist
vmem_addr_t bt_start;
vmem_size_t bt_size;
- int bt_type;
+ short bt_type;
+ short bt_flags;
};
#define BT_TYPE_SPAN 1
