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lvconvert: move _pmspare handling before conversion

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This commit is contained in:
Zdenek Kabelac 2023-08-17 20:02:16 +02:00
parent 8698f9dce6
commit ad73f571b8
1 changed files with 17 additions and 12 deletions
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29
tools/lvconvert.c
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@ -3356,6 +3356,23 @@ static int _lvconvert_to_pool(struct cmd_context *cmd,
}
}
/*
* Before starting a real conversion, prepare _pmspare volume.
* If there is already one presend in a VG, make sure the size is right
*/
if (!handle_pool_metadata_spare(vg, metadata_lv->le_count, use_pvh, pool_metadata_spare)) {
log_error("Failed to set up spare metadata LV for pool.");
goto bad;
}
/*
* After _pmspare handling is finished there are unwritten VG metadata
* that will get written with the next mda update.
* If there is any failure and such new metadata would not be written,
* a user is then left with 'regular' volume he can normally 'lvremove'.
* If there was _pmspare already existing, the size of such LV is already changed
* and is committed to disk. A user may only remove such volume and create a new one.
*/
if (to_thin) {
/*
* pool_lv is not yet a pool, when returned, pool_lv contains
@ -3492,18 +3509,6 @@ static int _lvconvert_to_pool(struct cmd_context *cmd,
(to_cachepool) ? "cache" : "thin",
(to_thin) ? "volume" : "pool");
/*
* FIXME handle_pool_metadata_spare() calls vg_write() vg_commit()
* after creating a new lvolN, but then lvolN is renamed and hidden as
* [lvolN_pmspare] without any further vg_write(). So, there's an extra
* vg_write and vg_commit required here to cover the renaming/hiding.
*/
if (!handle_pool_metadata_spare(vg, metadata_lv->le_count, use_pvh, pool_metadata_spare) ||
!vg_write(vg) || !vg_commit(vg)) {
log_error("Failed to set up spare metadata LV for thin pool.");
end_error = 1;
}
if (activate_pool && !activate_lv(cmd, pool_lv)) {
log_error("Failed to activate pool logical volume %s.", display_lvname(pool_lv));
end_error = 1;