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| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-07-03 21:13:33 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-07-27 22:24:27 +0300 |
| commit | a3fcf7253139609bf9ff901fbf955fba047e75dd (patch) | |
| tree | 4e69f184fecf442c1a52fe192b479ba7eaac9947 /Documentation/device-mapper | |
| parent | 747829a8e6c6a65e096ce8dd79506cbcf83951ad (diff) | |
| download | linux-a3fcf7253139609bf9ff901fbf955fba047e75dd.tar.xz | |
dm integrity: recalculate checksums on creation
When using external metadata device and internal hash, recalculate the
checksums when the device is created - so that dm-integrity doesn't
have to overwrite the device. The superblock stores the last position
when the recalculation ended, so that it is properly restarted.
Integrity tags that haven't been recalculated yet are ignored.
Also bump the target version.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'Documentation/device-mapper')
| -rw-r--r-- | Documentation/device-mapper/dm-integrity.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/device-mapper/dm-integrity.txt b/Documentation/device-mapper/dm-integrity.txt index f33e3ade7a09..297251b0d2d5 100644 --- a/Documentation/device-mapper/dm-integrity.txt +++ b/Documentation/device-mapper/dm-integrity.txt @@ -113,6 +113,10 @@ internal_hash:algorithm(:key) (the key is optional) from an upper layer target, such as dm-crypt. The upper layer target should check the validity of the integrity tags. +recalculate + Recalculate the integrity tags automatically. It is only valid + when using internal hash. + journal_crypt:algorithm(:key) (the key is optional) Encrypt the journal using given algorithm to make sure that the attacker can't read the journal. You can use a block cipher here |