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From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2/lib/metadata metadata-exported.h thin_manip.c Date: Thu, 03 Nov 2011 14:54:00 -0000 [thread overview] Message-ID: <20111103145403.30173.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2011-11-03 14:53:58 Modified files: lib/metadata : metadata-exported.h thin_manip.c Log message: Thin genering update_pool_lv function Function to trigger pool message passing via resume, or resize of the pool itself independently on other thins. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/metadata-exported.h.diff?cvsroot=lvm2&r1=1.219&r2=1.220 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/thin_manip.c.diff?cvsroot=lvm2&r1=1.19&r2=1.20 --- LVM2/lib/metadata/metadata-exported.h 2011/10/30 22:01:39 1.219 +++ LVM2/lib/metadata/metadata-exported.h 2011/11/03 14:53:58 1.220 @@ -560,6 +560,8 @@ int detach_pool_messages(struct logical_volume *pool_lv); +int update_pool_lv(struct logical_volume *lv, int activate); + /* * Activation options */ --- LVM2/lib/metadata/thin_manip.c 2011/11/03 14:38:36 1.19 +++ LVM2/lib/metadata/thin_manip.c 2011/11/03 14:53:58 1.20 @@ -317,3 +317,43 @@ return 1; } + +int update_pool_lv(struct logical_volume *lv, int activate) +{ + if (!lv_is_thin_pool(lv)) { + log_error(INTERNAL_ERROR "Updated LV %s is not pool.", lv->name); + return 0; + } + + if (activate) { + /* If the pool was not yet activated, do it */ + if (!lv_is_active(lv) && + !activate_lv_excl(lv->vg->cmd, lv)) { + log_error("Failed to activate %s.", lv->name); + return 0; + } + /* If already active, do suspend resume + * + * TODO: Support pool resume without suspend, + * since the real suspend is not needed here + */ + else if (!suspend_lv(lv->vg->cmd, lv)) { + log_error("Failed to suspend %s.", lv->name); + return 0; + } else if (!resume_lv(lv->vg->cmd, lv)) { + log_error("Failed to resume %s.", lv->name); + return 0; + } + } + + if (!dm_list_empty(&first_seg(lv)->thin_messages)) { + dm_list_init(&first_seg(lv)->thin_messages); + + if (!vg_write(lv->vg) || !vg_commit(lv->vg)) + return_0; + + backup(lv->vg); + } + + return 1; +}
next reply other threads:[~2011-11-03 14:54 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-11-03 14:54 zkabelac [this message] 2011-11-03 14:57 zkabelac
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