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Add check to vg_commit() to ensure lock is held before writing new VG metadata.

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This commit is contained in:
Dave Wysochanski 2008-04-04 15:41:20 +00:00
parent d2901a62a4
commit 9da5d7ac02
2 changed files with 7 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.34 - Version 2.02.34 -
=================================== ===================================
Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
Add validation of LV name to pvmove -n. Add validation of LV name to pvmove -n.
Make clvmd refresh the context correctly when lvm.conf is updated. Make clvmd refresh the context correctly when lvm.conf is updated.
Add some basic internal VG lock validation. Add some basic internal VG lock validation.

6
lib/metadata/metadata.c
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@ -1316,6 +1316,12 @@ int vg_commit(struct volume_group *vg)
int cache_updated = 0; int cache_updated = 0;
int failed = 0; int failed = 0;
if (!vgname_is_locked(vg->name)) {
log_error("Internal error: Attempt to write new VG metadata "
"without locking %s", vg->name);
return cache_updated;
}
/* Commit to each copy of the metadata area */ /* Commit to each copy of the metadata area */
list_iterate_items(mda, &vg->fid->metadata_areas) { list_iterate_items(mda, &vg->fid->metadata_areas) {
failed = 0; failed = 0;