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authorMikulas Patocka <mpatocka@redhat.com>2008-10-21 17:44:56 +0100
committerAlasdair G Kergon <agk@redhat.com>2008-10-21 17:44:56 +0100
commit7acedc5b98a2fcff64f00c21110aae7d3ac2f7df (patch)
treeed9eda05b30d3606f1ad16e368c313b40c616c3d /drivers/md/dm-raid1.c
parent7c9e6c17325fab380fbe9c9787680ff7d4a51abd (diff)
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dm exception store: fix misordered writes
We must zero the next chunk on disk *before* writing out the current chunk, not after. Otherwise if the machine crashes at the wrong time, the "end of metadata" marker may be missing. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: stable@kernel.org
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