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authorDan Williams <dan.j.williams@intel.com>2009-03-31 15:09:39 +1100
committerNeilBrown <neilb@suse.de>2009-03-31 15:09:39 +1100
commitf701d589aa34d7531183c9ac6f7713ba14212b02 (patch)
treed388cd7fa54c520f12233470a35ebb0676677e7a /drivers/md/Kconfig
parent18b0033491f584a2d79697da714b1ef9d6b27d22 (diff)
downloadop-kernel-dev-f701d589aa34d7531183c9ac6f7713ba14212b02.zip
op-kernel-dev-f701d589aa34d7531183c9ac6f7713ba14212b02.tar.gz
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/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 2281b50..449d0b9 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
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