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mirror of git://sourceware.org/git/lvm2.git synced 2025-01-09 01:18:39 +03:00

Note some problems still to be addressed.

This commit is contained in:
Alasdair Kergon 2010-01-14 14:39:57 +00:00
parent 801eff0c52
commit 3eb93f161f
3 changed files with 11 additions and 4 deletions

View File

@ -327,6 +327,7 @@ static int _status(const char *name, const char *uuid,
return 0;
}
/* FIXME Is there anything simpler to check for instead? */
static int _lv_has_target_type(struct dev_manager *dm,
struct logical_volume *lv,
const char *layer,
@ -362,6 +363,7 @@ static int _lv_has_target_type(struct dev_manager *dm,
&type, &params);
if (type && strncmp(type, target_type,
strlen(target_type)) == 0) {
/* FIXME Why the inactive test? */
if (info.live_table && !info.inactive_table)
r = 1;
break;
@ -447,6 +449,7 @@ static int _percent_run(struct dev_manager *dm, const char *name,
* - allows the situation when 'type' is "snapshot-merge" and
* 'target_type' is "snapshot"
*/
/* FIXME Do this properly - relying on target prefixes is incorrect. (E.g. snapshot-origin)*/
if (!type || !params || strncmp(type, target_type, strlen(target_type)))
continue;
@ -1051,7 +1054,7 @@ static int _add_segment_to_dtree(struct dev_manager *dm,
return_0;
/* If this is a snapshot origin, add real LV */
/* If this is a snapshot origin w/ merging snapshot, add cow and real LV */
/* If this is a snapshot origin + merging snapshot, add cow + real LV */
if (lv_is_origin(seg->lv) && !layer) {
if (vg_is_clustered(seg->lv->vg)) {
log_error("Clustered snapshots are not yet supported");
@ -1117,6 +1120,8 @@ static int _add_new_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
uint32_t read_ahead_flags = UINT32_C(0);
uint16_t udev_flags = 0;
/* FIXME Seek a simpler way to lay out the snapshot-merge tree. */
if (lv_is_origin(lv) && lv_is_merging_origin(lv) && !layer) {
/*
* Clear merge attributes if merge isn't currently possible:
@ -1125,6 +1130,7 @@ static int _add_new_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
* existing nodes' info isn't an option
* - but use "snapshot-merge" if it is already being used
*/
/* FIXME Avoid this - open_count is always returned by kernel now. */
if ((dev_manager_info(dm->mem, NULL, lv,
0, 1, 0, &dinfo, NULL) && dinfo.open_count) ||
(dev_manager_info(dm->mem, NULL, find_merging_cow(lv)->cow,

View File

@ -2142,6 +2142,7 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
if (!vg_write(vg))
return_0;
/* FIXME Seek a simpler way of dealing with this within the tree. */
/* If no snapshots left or if we stopped merging, reload */
if (origin && (!lv_is_origin(origin) || was_merging)) {
if (!suspend_lv(cmd, origin)) {

View File

@ -46,10 +46,10 @@ static int _snap_text_import(struct lv_segment *seg, const struct config_node *s
old_suppress = log_suppress(1);
cow_name = find_config_str(sn, "merging_store", NULL);
if (cow_name) {
/* FIXME Detect case of both merging_store and cow_store supplied */
if ((cow_name = find_config_str(sn, "merging_store", NULL)))
merge = 1;
} else if (!(cow_name = find_config_str(sn, "cow_store", NULL))) {
else if (!(cow_name = find_config_str(sn, "cow_store", NULL))) {
log_suppress(old_suppress);
log_error("Snapshot cow storage not specified.");
return 0;