From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zdenek Kabelac Date: Wed, 17 Feb 2021 12:01:26 +0000 (GMT) Subject: stable-2.02 - snapshot: create origin of virtual snap read only Message-ID: <20210217120126.838DC3896839@sourceware.org> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=dee104668ea5b39518a3a220d360d4624c3f3575 Commit: dee104668ea5b39518a3a220d360d4624c3f3575 Parent: 02978e1f0135b75789669ee4042855b08f57f8b4 Author: Zdenek Kabelac AuthorDate: Tue Feb 9 22:31:31 2021 +0100 Committer: Zdenek Kabelac CommitterDate: Wed Feb 17 12:14:54 2021 +0100 snapshot: create origin of virtual snap read only When creating old fashioned way thick virtual snapshot, use read-only 'zero' _vorigin device. --- lib/metadata/lv_manip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c index 8dd3e7140..11fab6d7b 100644 --- a/lib/metadata/lv_manip.c +++ b/lib/metadata/lv_manip.c @@ -8273,7 +8273,7 @@ static struct logical_volume *_lv_create_an_lv(struct volume_group *vg, /* Create zero origin volume for spare snapshot */ if (lp->virtual_extents && !(origin_lv = _create_virtual_origin(cmd, vg, lv->name, - lp->permission, + (lp->permission & ~LVM_WRITE), lp->virtual_extents))) goto revert_new_lv;