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From: agk@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW daemons/clvmd/clvmd-command.c ... Date: Fri, 09 May 2008 18:45:00 -0000 [thread overview] Message-ID: <20080509184516.25532.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: agk@sourceware.org 2008-05-09 18:45:15 Modified files: . : WHATS_NEW daemons/clvmd : clvmd-command.c lvm-functions.c lib/cache : lvmcache.c lib/locking : cluster_locking.c file_locking.c locking.c Log message: More P_ and V_ lock cleanup. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.873&r2=1.874 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/daemons/clvmd/clvmd-command.c.diff?cvsroot=lvm2&r1=1.22&r2=1.23 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/daemons/clvmd/lvm-functions.c.diff?cvsroot=lvm2&r1=1.40&r2=1.41 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/cache/lvmcache.c.diff?cvsroot=lvm2&r1=1.49&r2=1.50 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/locking/cluster_locking.c.diff?cvsroot=lvm2&r1=1.28&r2=1.29 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/locking/file_locking.c.diff?cvsroot=lvm2&r1=1.37&r2=1.38 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/locking/locking.c.diff?cvsroot=lvm2&r1=1.48&r2=1.49 --- LVM2/WHATS_NEW 2008/05/09 15:13:20 1.873 +++ LVM2/WHATS_NEW 2008/05/09 18:45:14 1.874 @@ -6,6 +6,7 @@ Version 2.02.37 - ================================= + Add assertions to trap deprecated P_ and V_ lock usage. Add missing mutex around clvmd lvmcache_drop_metadata library call. Fix uninitialised mutex in clvmd if all daemons are not running at startup. Avoid using DLM locks with LCK_CACHE type P_ lock requests. --- LVM2/daemons/clvmd/clvmd-command.c 2008/05/09 15:13:20 1.22 +++ LVM2/daemons/clvmd/clvmd-command.c 2008/05/09 18:45:14 1.23 @@ -118,10 +118,10 @@ lockname = &args[2]; /* Check to see if the VG is in use by LVM1 */ status = do_check_lvm1(lockname); - /* P_#global causes a cache refresh */ - if (strcmp(lockname, "P_#global") == 0) - do_refresh_cache(); - else if (strncmp(lockname, "P_", 2) == 0) + /* P_#global causes a full cache refresh */ + if (!strcmp(lockname, "P_#global")) + do_refresh_cache(); + else drop_metadata(lockname + 2); break; @@ -254,9 +254,9 @@ case CLVMD_CMD_LOCK_VG: lockname = &args[2]; - /* Do not use lock for cache related commands */ + /* We take out a real lock unless LCK_CACHE was set */ if (!strncmp(lockname, "V_", 2) || - !strcmp(lockname, "P_#global")) + !strncmp(lockname, "P_#", 3)) status = lock_vg(client); break; --- LVM2/daemons/clvmd/lvm-functions.c 2008/05/09 15:13:20 1.40 +++ LVM2/daemons/clvmd/lvm-functions.c 2008/05/09 18:45:14 1.41 @@ -472,7 +472,8 @@ popen ("lvm pvs --config 'log{command_names=0 prefix=\"\"}' --nolocking --noheadings -o vg_name", "r"); - sync_unlock("P_orphans", LCK_EXCL); + sync_unlock("P_#orphans", LCK_EXCL); + sync_unlock("P_#global", LCK_EXCL); if (!vgs) return; --- LVM2/lib/cache/lvmcache.c 2008/05/09 15:13:20 1.49 +++ LVM2/lib/cache/lvmcache.c 2008/05/09 18:45:14 1.50 @@ -162,6 +162,9 @@ _drop_metadata(FMT_TEXT_ORPHAN_VG_NAME); _drop_metadata(FMT_LVM1_ORPHAN_VG_NAME); _drop_metadata(FMT_POOL_ORPHAN_VG_NAME); + + /* Indicate that PVs could now be missing from the cache */ + init_full_scan_done(0); } else _drop_metadata(vgname); } --- LVM2/lib/locking/cluster_locking.c 2008/04/15 14:46:19 1.28 +++ LVM2/lib/locking/cluster_locking.c 2008/05/09 18:45:15 1.29 @@ -387,13 +387,12 @@ switch (flags & LCK_SCOPE_MASK) { case LCK_VG: /* If the VG name is empty then lock the unused PVs */ - if (!*resource) /* FIXME Deprecated */ - dm_snprintf(lockname, sizeof(lockname), "P_orphans"); - else if (*resource == '#' || (flags & LCK_CACHE)) - dm_snprintf(lockname, sizeof(lockname), "P_%s", resource); + if (*resource == '#' || (flags & LCK_CACHE)) + dm_snprintf(lockname, sizeof(lockname), "P_%s", + resource); else dm_snprintf(lockname, sizeof(lockname), "V_%s", - resource); + resource); lock_scope = "VG"; cluster_cmd = CLVMD_CMD_LOCK_VG; --- LVM2/lib/locking/file_locking.c 2008/04/15 14:46:19 1.37 +++ LVM2/lib/locking/file_locking.c 2008/05/09 18:45:15 1.38 @@ -214,10 +214,7 @@ lvmcache_drop_metadata(resource); break; } - if (!*resource) /* FIXME Deprecated */ - dm_snprintf(lockfile, sizeof(lockfile), - "%s/P_orphans", _lock_dir); - else if (*resource == '#') + if (*resource == '#') dm_snprintf(lockfile, sizeof(lockfile), "%s/P_%s", _lock_dir, resource + 1); else --- LVM2/lib/locking/locking.c 2008/05/08 18:35:58 1.48 +++ LVM2/lib/locking/locking.c 2008/05/09 18:45:15 1.49 @@ -323,6 +323,16 @@ assert(resource); + if (!*resource) { + log_error("Internal error: Use of P_orphans is deprecated."); + return 0; + } + + if (*resource == '#' && (flags & LCK_CACHE)) { + log_error("Internal error: P_%s referenced", resource); + return 0; + } + if ((ret = _locking.lock_resource(cmd, resource, flags))) { if ((flags & LCK_SCOPE_MASK) == LCK_VG && !(flags & LCK_CACHE)) {
next reply other threads:[~2008-05-09 18:45 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-05-09 18:45 agk [this message] -- strict thread matches above, loose matches on Subject: below -- 2011-09-26 7:51 zkabelac 2011-06-01 21:16 agk 2011-04-08 14:40 zkabelac 2011-02-18 16:18 zkabelac 2011-02-04 19:18 zkabelac 2011-01-31 19:52 zkabelac 2011-01-17 23:13 mbroz 2011-01-10 14:02 zkabelac 2010-06-17 12:48 mbroz 2010-06-04 12:59 mbroz 2010-01-05 16:07 mbroz 2010-01-05 16:05 mbroz 2009-12-09 18:42 mbroz 2009-04-22 9:40 mbroz 2008-05-09 15:13 agk 2008-04-15 14:46 mbroz 2008-04-15 11:36 agk 2006-12-11 14:00 pcaulfield 2006-10-05 13:55 pcaulfield 2006-05-12 19:16 agk 2005-10-16 23:04 agk 2005-08-16 8:25 pcaulfield
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