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Fix read-only snapshot creation.

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This commit is contained in:
Alasdair Kergon 2003-09-16 16:08:05 +00:00
parent 39cee65c6b
commit 47a2c1c6e5
2 changed files with 6 additions and 0 deletions
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1
lib/activate/dev_manager.c
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@ -1409,6 +1409,7 @@ static int _expand_snapshot(struct dev_manager *dm, struct logical_volume *lv,
dl->populate = _populate_vanilla;
_clear_flag(dl, VISIBLE);
_clear_flag(dl, TOPLEVEL);
_set_flag(dl, READWRITE);
cow_dlid = dl->dlid;

5
tools/lvcreate.c
View File

@ -453,6 +453,8 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
"supported yet");
return 0;
}
/* Must zero cow */
status |= LVM_WRITE;
}
if (!(lv = lv_create(vg->fid, lp->lv_name, status, alloc,
@ -512,6 +514,9 @@ static int _lvcreate(struct cmd_context *cmd, struct lvcreate_params *lp)
}
if (lp->snapshot) {
/* Reset permission after zeroing */
if (!(lp->permission & LVM_WRITE))
lv->status &= ~LVM_WRITE;
if (!lock_vol(cmd, lv->lvid.s, LCK_LV_DEACTIVATE)) {
log_err("Couldn't unlock snapshot.");
return 0;