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>
This commit is contained in:
Mikulas Patocka 2019-04-29 14:57:23 +02:00 committed by Mike Snitzer
parent 893e3c395b
commit 88ad5d1eb1
2 changed files with 12 additions and 2 deletions

View File

@ -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

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@ -3081,10 +3081,12 @@ bad:
* buffer_sectors
* journal_watermark
* commit_time
* meta_device
* block_size
* internal_hash
* journal_crypt
* journal_mac
* block_size
* recalculate
*/
static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
{