diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-03-31 06:09:39 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-03-31 06:09:39 +0200 |
| commit | f701d589aa34d7531183c9ac6f7713ba14212b02 (patch) | |
| tree | d388cd7fa54c520f12233470a35ebb0676677e7a /drivers/md/Kconfig | |
| parent | md: raid5 run(): Fix max_degraded for raid level 4. (diff) | |
| download | linux-f701d589aa34d7531183c9ac6f7713ba14212b02.tar.xz linux-f701d589aa34d7531183c9ac6f7713ba14212b02.zip | |
md/raid6: move raid6 data processing to raid6_pq.ko
Move the raid6 data processing routines into a standalone module
(raid6_pq) to prepare them to be called from async_tx wrappers and other
non-md drivers/modules. This precludes a circular dependency of raid456
needing the async modules for data processing while those modules in
turn depend on raid456 for the base level synchronous raid6 routines.
To support this move:
1/ The exportable definitions in raid6.h move to include/linux/raid/pq.h
2/ The raid6_call, recovery calls, and table symbols are exported
3/ Extra #ifdef __KERNEL__ statements to enable the userspace raid6test to
compile
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 2281b5098e95..449d0b9cac14 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -121,6 +121,7 @@ config MD_RAID10 config MD_RAID456 tristate "RAID-4/RAID-5/RAID-6 mode" depends on BLK_DEV_MD + select MD_RAID6_PQ select ASYNC_MEMCPY select ASYNC_XOR ---help--- @@ -180,6 +181,9 @@ config MD_RAID5_RESHAPE If unsure, say Y. +config MD_RAID6_PQ + tristate + config MD_MULTIPATH tristate "Multipath I/O support" depends on BLK_DEV_MD |