From mboxrd@z Thu Jan 1 00:00:00 1970 From: zkabelac@sourceware.org Date: 29 Feb 2012 22:08:59 -0000 Subject: LVM2 ./WHATS_NEW lib/metadata/lv_manip.c Message-ID: <20120229220859.9054.qmail@sourceware.org> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac at sourceware.org 2012-02-29 22:08:58 Modified files: . : WHATS_NEW lib/metadata : lv_manip.c Log message: Wipe initial 4KiB for non-zeroed thin volumes If the thin pool has disabled zeroing (created with -Zn), we at least clear initial 4KiB of such thin volume (provisions 1st block). If lvcreate is executed with '-an' command will abort (same way like we for normal LV - however for normal LV option -Zn may skip clearing completely, for thin volumes this option is not supported (applies only for pools). Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.2326&r2=1.2327 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/lv_manip.c.diff?cvsroot=lvm2&r1=1.367&r2=1.368 --- LVM2/WHATS_NEW 2012/02/29 21:15:34 1.2326 +++ LVM2/WHATS_NEW 2012/02/29 22:08:57 1.2327 @@ -1,5 +1,6 @@ Version 2.02.94 - ==================================== + Use set_lv() (wipe initial 4KiB) for non zeroed thin volume. Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt). Revert free of allocated segtype in init segment error path (2.02.89). Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda(). --- LVM2/lib/metadata/lv_manip.c 2012/02/28 10:08:20 1.367 +++ LVM2/lib/metadata/lv_manip.c 2012/02/29 22:08:58 1.368 @@ -4457,7 +4457,10 @@ if (!seg_is_thin(lp) && !lp->zero && !lp->snapshot) log_warn("WARNING: \"%s\" not zeroed", lv->name); - else if (!seg_is_thin(lp) && !set_lv(cmd, lv, UINT64_C(0), 0)) { + else if ((!seg_is_thin(lp) || + (lv_is_thin_volume(lv) && + !first_seg(first_seg(lv)->pool_lv)->zero_new_blocks)) && + !set_lv(cmd, lv, UINT64_C(0), 0)) { log_error("Aborting. Failed to wipe %s.", lp->snapshot ? "snapshot exception store" : "start of new LV");