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Fix read-only snapshot creation.
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parent
39cee65c6b
commit
47a2c1c6e5
@ -1409,6 +1409,7 @@ static int _expand_snapshot(struct dev_manager *dm, struct logical_volume *lv,
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dl->populate = _populate_vanilla;
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_clear_flag(dl, VISIBLE);
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_clear_flag(dl, TOPLEVEL);
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_set_flag(dl, READWRITE);
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cow_dlid = dl->dlid;
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@ -453,6 +453,8 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
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"supported yet");
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return 0;
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}
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/* Must zero cow */
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status |= LVM_WRITE;
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}
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if (!(lv = lv_create(vg->fid, lp->lv_name, status, alloc,
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@ -512,6 +514,9 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
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}
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if (lp->snapshot) {
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/* Reset permission after zeroing */
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if (!(lp->permission & LVM_WRITE))
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lv->status &= ~LVM_WRITE;
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if (!lock_vol(cmd, lv->lvid.s, LCK_LV_DEACTIVATE)) {
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log_err("Couldn't unlock snapshot.");
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return 0;
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