| commit | 762a80d9fc9f690a3a35983f3b4619a220650808 | [log] [tgz] |
|---|---|---|
| author | Mikulas Patocka <mpatocka@redhat.com> | Tue Aug 02 12:32:00 2011 +0100 |
| committer | Alasdair G Kergon <agk@redhat.com> | Tue Aug 02 12:32:00 2011 +0100 |
| tree | 807d9cfcd1c2395cd1cf62a95ebd6676ee2a6a4d | |
| parent | 6140333d3656f62ac7e6a5af87e7fe92cfb8d655 [diff] |
dm snapshot: flush disk cache when merging This patch makes dm-snapshot flush disk cache when writing metadata for merging snapshot. Without cache flushing the disk may reorder metadata write and other data writes and there is a possibility of data corruption in case of power fault. Cc: stable@kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>