[lvm-devel] [PATCH 09/25] Replicator: add lv_replicator_sites_check_vg
Zdenek Kabelac
zkabelac at redhat.com
Wed Mar 17 13:47:02 UTC 2010
Adding lv_replicator_sites_check_vg() which is called before
taking lock_vol().
Signed-off-by: Zdenek Kabelac <zkabelac at redhat.com>
---
lib/metadata/metadata-exported.h | 2 ++
lib/metadata/replicator_manip.c | 32 ++++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/lib/metadata/metadata-exported.h b/lib/metadata/metadata-exported.h
index 594c0b0..3e1da12 100644
--- a/lib/metadata/metadata-exported.h
+++ b/lib/metadata/metadata-exported.h
@@ -800,6 +800,8 @@ int vg_name_list_read(struct cmd_context *cmd, struct dm_list *vgs_list,
void vg_name_list_release(struct dm_list *vgs_list,
struct vg_name_list *vnl_vg);
+int lv_replicator_sites_check_vg(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,
diff --git a/lib/metadata/replicator_manip.c b/lib/metadata/replicator_manip.c
index 52a7fcb..d5e3cda 100644
--- a/lib/metadata/replicator_manip.c
+++ b/lib/metadata/replicator_manip.c
@@ -486,3 +486,35 @@ void vg_name_list_release(struct dm_list *vgs_list,
vnl->vg = NULL;
}
}
+
+/**
+ * Check whether all VGs are available for processing given LV
+ * Missing VGs are added to the list
+ */
+int lv_replicator_sites_check_vg(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 ||
+ vg_name_list_lookup(&lv->vg->vgs, rsite->vg_name))
+ continue;
+ ret = 0;
+ /* Using cmd memory pool for list allocation */
+ if (!vg_name_list_add(lv->vg->cmd->mem, &lv->vg->vgs,
+ rsite->vg_name, NULL, 0)) {
+ stack;
+ lv->vg->missing_vgs = 0; /* do not retry */
+ break;
+ }
+
+ log_debug("VG: %s added as missing.", rsite->vg_name);
+ lv->vg->missing_vgs++;
+ }
+
+ return ret;
+}
--
1.7.0.1
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