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| author |   Dan Williams <dan.j.williams@intel.com> | 2009-08-29 19:09:26 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-08-29 19:09:26 -0700 |
| commit | ad283ea4a3ce82cda2efe33163748a397b31b1eb (patch) | |
| tree | 11cd739195f336895abe9e4a62d824e49a41c24f /drivers/md | |
| parent | md/raid5,6: add percpu scribble region for buffer lists (diff) | |
| download | linux-dev-ad283ea4a3ce82cda2efe33163748a397b31b1eb.tar.xz linux-dev-ad283ea4a3ce82cda2efe33163748a397b31b1eb.zip | |
async_tx: add sum check flags
Replace the flat zero_sum_result with a collection of flags to contain
the P (xor) zero-sum result, and the soon to be utilized Q (raid6 reed
solomon syndrome) zero-sum result. Use the SUM_CHECK_ namespace instead
of DMA_ since these flags will be used on non-dma-zero-sum enabled
platforms.
Reviewed-by: Andre Noll <maan@systemlinux.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid5.c | 2 | ||||
| -rw-r--r-- | drivers/md/raid5.h | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7727954cf726..1f2a266f3cf7 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2590,7 +2590,7 @@ static void handle_parity_checks5(raid5_conf_t *conf, struct stripe_head *sh, * we are done. Otherwise update the mismatch count and repair * parity if !MD_RECOVERY_CHECK */ - if (sh->ops.zero_sum_result == 0) + if ((sh->ops.zero_sum_result & SUM_CHECK_P_RESULT) == 0) /* parity is correct (on disc, * not in buffer any more) */ diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index e7baabffee86..75f2c6c4cf90 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -2,6 +2,7 @@ #define _RAID5_H #include <linux/raid/xor.h> +#include <linux/dmaengine.h> /* * @@ -215,8 +216,8 @@ struct stripe_head { * @target - STRIPE_OP_COMPUTE_BLK target */ struct stripe_operations { - int target; - u32 zero_sum_result; + int target; + enum sum_check_flags zero_sum_result; } ops; struct r5dev { struct bio req; |