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From: agk@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW lib/cache/lvmcache.c Date: Thu, 08 May 2008 18:28:00 -0000 [thread overview] Message-ID: <20080508182827.636.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: agk@sourceware.org 2008-05-08 18:28:27 Modified files: . : WHATS_NEW lib/cache : lvmcache.c Log message: When asked to drop cached committed VG metadata, invalidate cached PV labels. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.868&r2=1.869 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/cache/lvmcache.c.diff?cvsroot=lvm2&r1=1.47&r2=1.48 --- LVM2/WHATS_NEW 2008/05/08 18:06:58 1.868 +++ LVM2/WHATS_NEW 2008/05/08 18:28:27 1.869 @@ -5,6 +5,7 @@ Version 2.02.37 - ================================= + When asked to drop cached committed VG metadata, invalidate cached PV labels. Drop metadata cache before writing precommitted metadata instead of after. Don't touch /dev in vgrename if activation is disabled. --- LVM2/lib/cache/lvmcache.c 2008/04/24 02:22:06 1.47 +++ LVM2/lib/cache/lvmcache.c 2008/05/08 18:28:27 1.48 @@ -22,6 +22,9 @@ #include "filter.h" #include "memlock.h" #include "str_list.h" +#include "format-text.h" +#include "format_pool.h" +#include "format1.h" static struct dm_hash_table *_pvid_hash = NULL; static struct dm_hash_table *_vgid_hash = NULL; @@ -130,16 +133,39 @@ _update_cache_vginfo_lock_state(vginfo, locked); } -void lvmcache_drop_metadata(const char *vgname) +static void _drop_metadata(const char *vgname) { struct lvmcache_vginfo *vginfo; + struct lvmcache_info *info; if (!(vginfo = vginfo_from_vgname(vgname, NULL))) return; + /* + * Invalidate cached PV labels. + * If cached precommitted metadata exists that means we + * already invalidated the PV labels (before caching it) + * and we must not do it again. + */ + + if (!vginfo->precommitted) + list_iterate_items(info, &vginfo->infos) + info->status |= CACHE_INVALID; + _free_cached_vgmetadata(vginfo); } +void lvmcache_drop_metadata(const char *vgname) +{ + /* For VG_ORPHANS, we need to invalidate all labels on orphan PVs. */ + if (strcmp(vgname, VG_ORPHANS)) { + _drop_metadata(FMT_TEXT_ORPHAN_VG_NAME); + _drop_metadata(FMT_LVM1_ORPHAN_VG_NAME); + _drop_metadata(FMT_POOL_ORPHAN_VG_NAME); + } else + _drop_metadata(vgname); +} + void lvmcache_lock_vgname(const char *vgname, int read_only __attribute((unused))) { if (!_lock_hash && !lvmcache_init()) {
next reply other threads:[~2008-05-08 18:28 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-05-08 18:28 agk [this message] -- strict thread matches above, loose matches on Subject: below -- 2011-03-29 21:34 zkabelac 2011-03-10 3:03 agk 2010-12-01 10:39 zkabelac 2010-03-31 17:20 mbroz 2009-10-22 17:33 agk 2009-02-17 18:56 agk 2008-11-27 18:13 agk 2008-06-11 11:02 agk 2008-06-09 16:22 agk 2006-06-14 20:11 agk
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