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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-06-18 12:40:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-15 11:03:01 -0300 |
| commit | 6cf2a73cb2bc422a03984b285a63632c27f8c4e4 (patch) | |
| tree | cb508e0a180ce350a86842353c5cb417e560835b /Documentation/device-mapper/delay.rst | |
| parent | 159a5e78bdcabb1f87ee5536182a99a307ae0bac (diff) | |
| download | linux-6cf2a73cb2bc422a03984b285a63632c27f8c4e4.tar.gz linux-6cf2a73cb2bc422a03984b285a63632c27f8c4e4.tar.bz2 linux-6cf2a73cb2bc422a03984b285a63632c27f8c4e4.zip | |
docs: device-mapper: move it to the admin-guide
The DM support describes lots of aspects related to mapped
disk partitions from the userspace PoV.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/device-mapper/delay.rst')
| -rw-r--r-- | Documentation/device-mapper/delay.rst | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/Documentation/device-mapper/delay.rst b/Documentation/device-mapper/delay.rst deleted file mode 100644 index 917ba8c33359..000000000000 --- a/Documentation/device-mapper/delay.rst +++ /dev/null @@ -1,31 +0,0 @@ -======== -dm-delay -======== - -Device-Mapper's "delay" target delays reads and/or writes -and maps them to different devices. - -Parameters:: - - <device> <offset> <delay> [<write_device> <write_offset> <write_delay> - [<flush_device> <flush_offset> <flush_delay>]] - -With separate write parameters, the first set is only used for reads. -Offsets are specified in sectors. -Delays are specified in milliseconds. - -Example scripts -=============== - -:: - - #!/bin/sh - # Create device delaying rw operation for 500ms - echo "0 `blockdev --getsz $1` delay $1 0 500" | dmsetup create delayed - -:: - - #!/bin/sh - # Create device delaying only write operation for 500ms and - # splitting reads and writes to different devices $1 $2 - echo "0 `blockdev --getsz $1` delay $1 0 0 $2 0 500" | dmsetup create delayed |