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由 Mikulas Patocka 提交于
stable inclusion from linux-4.19.199 commit 797b950e8aaec3fc30312bb9a44d702c6cc9d25e -------------------------------- commit 4134455f upstream. Do not attempt to write any data beyond the end of the underlying data device while shrinking it. The DM writecache device must be suspended when the underlying data device is shrunk. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
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