[lvm-devel] LVM2/liblvm lvm2app.h lvm_pv.c
mornfall at sourceware.org
mornfall at sourceware.org
Wed Nov 17 20:10:43 UTC 2010
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: mornfall at sourceware.org 2010-11-17 20:10:42
Modified files:
liblvm : lvm2app.h lvm_pv.c
Log message:
Add a new type and function to lvm2app to enumerate pvsegs.
Signed-off-by: Dave Wysochanski <wysochanski at pobox.com>
Reviewed-by: Petr Rockai <prockai at redhat.com>
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm2app.h.diff?cvsroot=lvm2&r1=1.26&r2=1.27
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/liblvm/lvm_pv.c.diff?cvsroot=lvm2&r1=1.15&r2=1.16
--- LVM2/liblvm/lvm2app.h 2010/11/17 20:09:42 1.26
+++ LVM2/liblvm/lvm2app.h 2010/11/17 20:10:42 1.27
@@ -96,6 +96,7 @@
struct volume_group;
struct logical_volume;
struct lv_segment;
+struct pv_segment;
/**
* \class lvm_t
@@ -145,6 +146,13 @@
typedef struct lv_segment *lvseg_t;
/**
+ * \class pvseg_t
+ *
+ * This pv segment object is bound to a pv_t.
+ */
+typedef struct pv_segment *pvseg_t;
+
+/**
* Logical Volume object list.
*
* Lists of these structures are returned by lvm_vg_list_lvs().
@@ -175,6 +183,16 @@
} pv_list_t;
/**
+ * Physical Volume Segment object list.
+ *
+ * Lists of these structures are returned by lvm_pv_list_pvsegs().
+ */
+typedef struct lvm_pvseg_list {
+ struct dm_list list;
+ pvseg_t pvseg;
+} pvseg_list_t;
+
+/**
* String list.
*
* This string list contains read-only strings.
@@ -1419,6 +1437,19 @@
struct lvm_property_value lvm_pv_get_property(const pv_t pv, const char *name);
/**
+ * Return a list of pvseg handles for a given PV handle.
+ *
+ * \memberof pv_t
+ *
+ * \param pv
+ * Physical volume handle.
+ *
+ * \return
+ * A list of lvm_pvseg_list structures containing pvseg handles for this pv.
+ */
+struct dm_list *lvm_pv_list_pvsegs(pv_t pv);
+
+/**
* Resize physical volume to new_size bytes.
*
* \memberof pv_t
--- LVM2/liblvm/lvm_pv.c 2010/11/17 20:09:42 1.15
+++ LVM2/liblvm/lvm_pv.c 2010/11/17 20:10:42 1.16
@@ -54,6 +54,33 @@
return get_property(pv, NULL, NULL, NULL, name);
}
+struct dm_list *lvm_pv_list_pvsegs(pv_t pv)
+{
+ struct dm_list *list;
+ pvseg_list_t *pvseg;
+ struct pv_segment *pvl;
+
+ if (dm_list_empty(&pv->segments))
+ return NULL;
+
+ if (!(list = dm_pool_zalloc(pv->vg->vgmem, sizeof(*list)))) {
+ log_errno(ENOMEM, "Memory allocation fail for dm_list.");
+ return NULL;
+ }
+ dm_list_init(list);
+
+ dm_list_iterate_items(pvl, &pv->segments) {
+ if (!(pvseg = dm_pool_zalloc(pv->vg->vgmem, sizeof(*pvseg)))) {
+ log_errno(ENOMEM,
+ "Memory allocation fail for lvm_pvseg_list.");
+ return NULL;
+ }
+ pvseg->pvseg = pvl;
+ dm_list_add(list, &pvseg->list);
+ }
+ return list;
+}
+
int lvm_pv_resize(const pv_t pv, uint64_t new_size)
{
/* FIXME: add pv resize code here */
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