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LVM2 ./WHATS_NEW lib/metadata/metadata-exporte ...
- From: zkabelac at sourceware dot org
- To: lvm-devel at redhat dot com, lvm2-cvs at sourceware dot org
- Date: 21 May 2010 12:55:32 -0000
- Subject: LVM2 ./WHATS_NEW lib/metadata/metadata-exporte ...
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac@sourceware.org 2010-05-21 12:55:25
Modified files:
. : WHATS_NEW
lib/metadata : metadata-exported.h replicator_manip.c
Log message:
Replicator: add find_replicator_vgs
Adding find_replicator_vgs() function to find all needed
VGs for replicator-dev LV.
This function is later called before taking lock_vol().
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.1583&r2=1.1584
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/metadata-exported.h.diff?cvsroot=lvm2&r1=1.149&r2=1.150
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/replicator_manip.c.diff?cvsroot=lvm2&r1=1.3&r2=1.4
--- LVM2/WHATS_NEW 2010/05/21 12:52:01 1.1583
+++ LVM2/WHATS_NEW 2010/05/21 12:55:25 1.1584
@@ -1,5 +1,6 @@
Version 2.02.67 -
===============================
+ Add find_replicator_vgs() to discover all needed VGs for replicator-dev LV.
Add functions for handling cmd_vg structure.
Extend _lv_each_dependency() with Replicator dependencies.
Add check_replicator_segment() for catching internal Replicator errors.
--- LVM2/lib/metadata/metadata-exported.h 2010/05/21 12:52:01 1.149
+++ LVM2/lib/metadata/metadata-exported.h 2010/05/21 12:55:25 1.150
@@ -815,6 +815,8 @@
int cmd_vg_read(struct cmd_context *cmd, struct dm_list *cmd_vgs);
void cmd_vg_release(struct dm_list *cmd_vgs);
+int find_replicator_vgs(struct logical_volume *lv);
+
struct logical_volume *find_pvmove_lv(struct volume_group *vg,
struct device *dev, uint32_t lv_type);
struct logical_volume *find_pvmove_lv_from_pvname(struct cmd_context *cmd,
--- LVM2/lib/metadata/replicator_manip.c 2010/05/21 12:52:01 1.3
+++ LVM2/lib/metadata/replicator_manip.c 2010/05/21 12:55:25 1.4
@@ -602,3 +602,35 @@
cvl->vg = NULL;
}
}
+
+/**
+ * Find all needed remote VGs for processing given LV.
+ * Missing VGs are added to VG's cmd_vg list and flag cmd_missing_vgs is set.
+ */
+int find_replicator_vgs(struct logical_volume *lv)
+{
+ struct replicator_site *rsite;
+ int ret = 1;
+
+ if (!lv_is_replicator_dev(lv))
+ return 1;
+
+ dm_list_iterate_items(rsite, &first_seg(lv)->replicator->rsites) {
+ if (!rsite->vg_name || !lv->vg->cmd_vgs ||
+ cmd_vg_lookup(lv->vg->cmd_vgs, rsite->vg_name, NULL))
+ continue;
+ ret = 0;
+ /* Using cmd memory pool for cmd_vg list allocation */
+ if (!cmd_vg_add(lv->vg->cmd->mem, lv->vg->cmd_vgs,
+ rsite->vg_name, NULL, 0)) {
+ lv->vg->cmd_missing_vgs = 0; /* do not retry */
+ stack;
+ break;
+ }
+
+ log_debug("VG: %s added as missing.", rsite->vg_name);
+ lv->vg->cmd_missing_vgs++;
+ }
+
+ return ret;
+}