shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
Code Releases Activity

attempt to cope with uuid transition

Browse Source
This commit is contained in:
Alasdair Kergon 2005-10-26 15:21:13 +00:00
parent 878467cd7c
commit 2b69db1f25
1 changed files with 27 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
libdm/libdm-deptree.c
View File

@ -362,6 +362,30 @@ int dm_deptree_node_num_children(struct deptree_node *node, uint32_t inverted)
return list_size(&node->uses); return list_size(&node->uses);
} }
/*
* Returns 1 if no prefix supplied
*/
static int _uuid_prefix_matches(const char *uuid, const char *uuid_prefix, size_t uuid_prefix_len)
{
if (!uuid_prefix)
return 1;
if (!strncmp(uuid, uuid_prefix, uuid_prefix_len))
return 1;
/* Handle transition: active device uuids might be missing the prefix */
if (uuid_prefix_len <= 4)
return 0;
if (!strcmp(uuid, "LVM-") || strcmp(uuid_prefix, "LVM-"))
return 0;
if (!strncmp(uuid, uuid_prefix + 4, uuid_prefix_len - 4))
return 1;
return 0;
}
/* /*
* Returns 1 if no children. * Returns 1 if no children.
*/ */
@ -392,7 +416,7 @@ static int _children_suspended(struct deptree_node *node,
} }
/* Ignore if it doesn't belong to this VG */ /* Ignore if it doesn't belong to this VG */
if (uuid_prefix && strncmp(uuid, uuid_prefix, uuid_prefix_len)) if (!_uuid_prefix_matches(uuid, uuid_prefix, uuid_prefix_len))
continue; continue;
if (!(dinfo = dm_deptree_node_get_info(dlink->node))) { if (!(dinfo = dm_deptree_node_get_info(dlink->node))) {
@ -563,7 +587,7 @@ int dm_deptree_deactivate_children(struct deptree_node *dnode,
} }
/* Ignore if it doesn't belong to this VG */ /* Ignore if it doesn't belong to this VG */
if (uuid_prefix && strncmp(uuid, uuid_prefix, uuid_prefix_len)) if (!_uuid_prefix_matches(uuid, uuid_prefix, uuid_prefix_len))
continue; continue;
/* Refresh open_count */ /* Refresh open_count */
@ -614,7 +638,7 @@ int dm_deptree_suspend_children(struct deptree_node *dnode,
} }
/* Ignore if it doesn't belong to this VG */ /* Ignore if it doesn't belong to this VG */
if (uuid_prefix && strncmp(uuid, uuid_prefix, uuid_prefix_len)) if (!_uuid_prefix_matches(uuid, uuid_prefix, uuid_prefix_len))
continue; continue;
/* Ensure immediate parents are already suspended */ /* Ensure immediate parents are already suspended */