[lvm-devel] LVM2/liblvm .exported_symbols lvm.h lvm_vg.c
wysochanski at sourceware.org
wysochanski at sourceware.org
Fri Jul 24 12:48:21 UTC 2009
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: wysochanski at sourceware.org 2009-07-24 12:48:21
Modified files:
liblvm : .exported_symbols lvm.h lvm_vg.c
Log message:
Add lvm_scan_vgs liblvm fn to scan the system for LVM metadata.
The lvm_list_vg_{names|ids} functions do not do a scan so we provide
a liblvm function that does a scan.
Author: Dave Wysochanski <dwysocha at redhat.com>
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/.exported_symbols.diff?cvsroot=lvm2&r1=1.7&r2=1.8
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm.h.diff?cvsroot=lvm2&r1=1.11&r2=1.12
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm_vg.c.diff?cvsroot=lvm2&r1=1.7&r2=1.8
--- LVM2/liblvm/.exported_symbols 2009/07/24 12:47:15 1.7
+++ LVM2/liblvm/.exported_symbols 2009/07/24 12:48:21 1.8
@@ -14,6 +14,7 @@
lvm_vg_open
lvm_vg_close
lvm_vg_remove
+lvm_scan_vgs
lvm_errno
lvm_errmsg
lvm_vg_list_pvs
--- LVM2/liblvm/lvm.h 2009/07/24 12:47:15 1.11
+++ LVM2/liblvm/lvm.h 2009/07/24 12:48:21 1.12
@@ -265,6 +265,8 @@
* Return a list of VG names or VG uuids in the system.
*
* NOTE: This function will _NOT_ scan devices in the system for LVM metadata.
+ * To scan the system, use lvm_scan_vgs.
+ *
* To process the list, use the dm_list iterator functions. For example:
* vg_t *vg;
* struct dm_list *vgnames;
@@ -286,5 +288,11 @@
struct dm_list *lvm_list_vg_names(lvm_t libh);
struct dm_list *lvm_list_vg_ids(lvm_t libh);
+/**
+ * Scan all devices on the system for VGs and LVM metadata.
+ *
+ * \return Status code of 1 (success) or 0 (failure).
+ */
+int lvm_scan_vgs(lvm_t libh);
#endif /* _LIB_LVM_H */
--- LVM2/liblvm/lvm_vg.c 2009/07/24 12:47:15 1.7
+++ LVM2/liblvm/lvm_vg.c 2009/07/24 12:48:21 1.8
@@ -22,6 +22,7 @@
#include "archiver.h"
#include "locking.h"
#include "lvm-string.h"
+#include "lvmcache.h"
vg_t *lvm_vg_create(lvm_t libh, const char *vg_name)
{
@@ -198,3 +199,8 @@
{
return get_vgids((struct cmd_context *)libh, 0);
}
+
+int lvm_scan_vgs(lvm_t libh)
+{
+ return lvmcache_label_scan((struct cmd_context *)libh, 2);
+}
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