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LVM2/liblvm .exported_symbols lvm.h lvm_lv.c
- From: wysochanski at sourceware dot org
- To: lvm-devel at redhat dot com, lvm2-cvs at sourceware dot org
- Date: 26 Jul 2009 20:58:12 -0000
- Subject: LVM2/liblvm .exported_symbols lvm.h lvm_lv.c
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: wysochanski@sourceware.org 2009-07-26 20:58:11
Modified files:
liblvm : .exported_symbols lvm.h lvm_lv.c
Log message:
Add lvm_lv_is_active and lvm_lv_is_suspended.
Return whether an LV is active in the kernel (live table) or suspended
(table suspend).
Author: Dave Wysochanski <dwysocha@redhat.com>
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/.exported_symbols.diff?cvsroot=lvm2&r1=1.16&r2=1.17
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm.h.diff?cvsroot=lvm2&r1=1.25&r2=1.26
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm_lv.c.diff?cvsroot=lvm2&r1=1.6&r2=1.7
--- LVM2/liblvm/.exported_symbols 2009/07/26 20:57:37 1.16
+++ LVM2/liblvm/.exported_symbols 2009/07/26 20:58:11 1.17
@@ -17,6 +17,8 @@
lvm_lv_get_uuid
lvm_lv_get_name
lvm_lv_get_size
+lvm_lv_is_active
+lvm_lv_is_suspended
lvm_vg_create
lvm_vg_extend
lvm_vg_set_extent_size
--- LVM2/liblvm/lvm.h 2009/07/26 20:57:37 1.25
+++ LVM2/liblvm/lvm.h 2009/07/26 20:58:11 1.26
@@ -516,6 +516,24 @@
*/
uint64_t lvm_lv_get_size(const lv_t *lv);
+/**
+ * Get the current activation state of a logical volume.
+ *
+ * \param lv
+ * Logical volume handle.
+ * \return 1 if the LV is active in the kernel, 0 if not
+ */
+uint64_t lvm_lv_is_active(const lv_t *lv);
+
+/**
+ * Get the current suspended state of a logical volume.
+ *
+ * \param lv
+ * Logical volume handle.
+ * \return 1 if the LV is suspended in the kernel, 0 if not
+ */
+uint64_t lvm_lv_is_suspended(const lv_t *lv);
+
/************************** physical volume handling ************************/
/**
--- LVM2/liblvm/lvm_lv.c 2009/07/26 20:57:37 1.6
+++ LVM2/liblvm/lvm_lv.c 2009/07/26 20:58:11 1.7
@@ -19,6 +19,7 @@
#include "defaults.h"
#include "segtype.h"
#include "locking.h"
+#include "activate.h"
#include <string.h>
@@ -49,6 +50,24 @@
return name;
}
+uint64_t lvm_lv_is_active(const lv_t *lv)
+{
+ struct lvinfo info;
+ if (lv_info(lv->vg->cmd, lv, &info, 1, 0) &&
+ info.exists && info.live_table)
+ return 1;
+ return 0;
+}
+
+uint64_t lvm_lv_is_suspended(const lv_t *lv)
+{
+ struct lvinfo info;
+ if (lv_info(lv->vg->cmd, lv, &info, 1, 0) &&
+ info.exists && info.suspended)
+ return 1;
+ return 0;
+}
+
/* Set defaults for non-segment specific LV parameters */
static void _lv_set_default_params(struct lvcreate_params *lp,
vg_t *vg, const char *lvname,