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| author | Heinz Mauelshagen <mauelshagen@redhat.com> | 2007-05-09 11:33:06 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 21:30:47 +0200 |
| commit | 26b9f228703f0518a90e7513d6fe7b6abeed5138 (patch) | |
| tree | 3437e92667c338ea46ad47b064ce4908d7d75fe2 /drivers/md/Kconfig | |
| parent | dm: bio list helpers (diff) | |
| download | linux-26b9f228703f0518a90e7513d6fe7b6abeed5138.tar.xz linux-26b9f228703f0518a90e7513d6fe7b6abeed5138.zip | |
dm: delay target
New device-mapper target that can delay I/O (for testing). Reads can be
separated from writes, redirected to different underlying devices and delayed
by differing amounts of time.
Signed-off-by: Heinz Mauelshagen <mauelshagen@redhat.com>
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 4540ade6b6b5..7df934d69134 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -262,6 +262,15 @@ config DM_MULTIPATH_EMC ---help--- Multipath support for EMC CX/AX series hardware. +config DM_DELAY + tristate "I/O delaying target (EXPERIMENTAL)" + depends on BLK_DEV_DM && EXPERIMENTAL + ---help--- + A target that delays reads and/or writes and can send + them to different devices. Useful for testing. + + If unsure, say N. + endmenu endif |