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| author | Mikulas Patocka <mpatocka@redhat.com> | 2019-04-29 14:57:23 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2019-05-07 16:05:10 -0400 |
| commit | 88ad5d1eb147a73ad000c658dff0e5166819e6f2 (patch) | |
| tree | 049c2c59dc7ebb63d72fa23d79f759edded7c444 /Documentation/device-mapper | |
| parent | 893e3c395b2b7ea224c3d954bf9ba468745253f2 (diff) | |
dm integrity: update documentation
Update documentation with the "meta_device" parameter and flags.
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 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/device-mapper/dm-integrity.txt b/Documentation/device-mapper/dm-integrity.txt index 297251b0d2d5..7dc9180cdeac 100644 --- a/Documentation/device-mapper/dm-integrity.txt +++ b/Documentation/device-mapper/dm-integrity.txt @@ -79,6 +79,10 @@ interleave_sectors:number a power of two. If the device is already formatted, the value from the superblock is used. +meta_device:device + Don't interleave the data and metadata on on device. Use a + separate device for metadata. + buffer_sectors:number The number of sectors in one buffer. The value is rounded down to a power of two. @@ -167,7 +171,11 @@ The layout of the formatted block device: provides (i.e. the size of the device minus the size of all metadata and padding). The user of this target should not send bios that access data beyond the "provided data sectors" limit. - * flags - a flag is set if journal_mac is used + * flags + SB_FLAG_HAVE_JOURNAL_MAC - a flag is set if journal_mac is used + SB_FLAG_RECALCULATING - recalculating is in progress + * log2(sectors per block) + * a position where recalculating finished * journal The journal is divided into sections, each section contains: * metadata area (4kiB), it contains journal entries |