vgchange: acquire an exclusive VG lock for refresh
Concurrent vgchange --refresh commands can lead to hung
tasks in dm code.
Signed-off-by:
wangzhiqiang <wangzhiqiang95@huawei.com>
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Concurrent vgchange --refresh commands can lead to hung
tasks in dm code.
Signed-off-by:
wangzhiqiang <wangzhiqiang95@huawei.com>