[lvm-devel] LVM2 ./WHATS_NEW lib/report/report.c
zkabelac at sourceware.org
zkabelac at sourceware.org
Thu Jan 7 14:37:12 UTC 2010
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac at sourceware.org 2010-01-07 14:37:12
Modified files:
. : WHATS_NEW
lib/report : report.c
Log message:
Use offsetof() macro and avoid defining dummy static union for FIELD() macro.
Makes it compilable by clang compiler.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.1367&r2=1.1368
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/report/report.c.diff?cvsroot=lvm2&r1=1.106&r2=1.107
--- LVM2/WHATS_NEW 2010/01/06 13:27:06 1.1367
+++ LVM2/WHATS_NEW 2010/01/07 14:37:11 1.1368
@@ -1,5 +1,6 @@
Version 2.02.57 -
====================================
+ Use offsetof() macro for FIELD() macro in lib/report/report.c.
Rename mirror_device_fault_policy to mirror_image_fault policy.
Remove empty PV devices if lvconvert --repair is using defined policies.
Use fixed buffer to prevent stack overflow in persistent filter dump.
--- LVM2/lib/report/report.c 2009/10/31 17:26:14 1.106
+++ LVM2/lib/report/report.c 2010/01/07 14:37:12 1.107
@@ -24,6 +24,8 @@
#include "str_list.h"
#include "lvmcache.h"
+#include <stddef.h> /* offsetof() */
+
struct lvm_report_object {
struct volume_group *vg;
struct logical_volume *lv;
@@ -32,17 +34,6 @@
struct pv_segment *pvseg;
};
-/*
- * For macro use
- */
-static union {
- struct physical_volume _pv;
- struct logical_volume _lv;
- struct volume_group _vg;
- struct lv_segment _seg;
- struct pv_segment _pvseg;
-} _dummy;
-
static char _alloc_policy_char(alloc_policy_t alloc)
{
switch (alloc) {
@@ -1156,9 +1147,17 @@
#define STR DM_REPORT_FIELD_TYPE_STRING
#define NUM DM_REPORT_FIELD_TYPE_NUMBER
-#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) {type, sorttype, (off_t)((uintptr_t)&_dummy._ ## strct.field - (uintptr_t)&_dummy._ ## strct), width, id, head, &_ ## func ## _disp, desc},
+#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) \
+ {type, sorttype, offsetof(type_ ## strct, field), width, \
+ id, head, &_ ## func ## _disp, desc},
+
+typedef struct physical_volume type_pv;
+typedef struct logical_volume type_lv;
+typedef struct volume_group type_vg;
+typedef struct lv_segment type_seg;
+typedef struct pv_segment type_pvseg;
-static struct dm_report_field_type _fields[] = {
+static const struct dm_report_field_type _fields[] = {
#include "columns.h"
{0, 0, 0, 0, "", "", NULL, NULL},
};
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