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| author |   Javier González <javier@cnexlabs.com> | 2016-03-03 14:47:53 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-03-03 14:47:53 -0700 |
| commit | afb18e0ed862fae05aa41be278c1ddb87473c7b1 (patch) | |
| tree | 2c95318aed1cb4532cf078bdfe0fded9affdd4cb /drivers/lightnvm/rrpc.h | |
| parent | lightnvm: remove struct nvm_dev->total_blocks (diff) | |
| download | linux-dev-afb18e0ed862fae05aa41be278c1ddb87473c7b1.tar.xz linux-dev-afb18e0ed862fae05aa41be278c1ddb87473c7b1.zip | |
lightnvm: generalize rrpc ppa calculations
In rrpc, some calculations assume a certain configuration (e.g., 1 LUN,
1 sector per page). The reason behind this was that LightNVM used a
simple configuration with QEMU to test core features in the beginning.
This patch relaxes these assumptions and generalizes calculation,
allowing multiple luns to be used.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/lightnvm/rrpc.h')
| -rw-r--r-- | drivers/lightnvm/rrpc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h index dfca5c4d26bb..0577c4dae05f 100644 --- a/drivers/lightnvm/rrpc.h +++ b/drivers/lightnvm/rrpc.h @@ -156,6 +156,15 @@ struct rrpc_rev_addr { u64 addr; }; +static inline struct rrpc_block *rrpc_get_rblk(struct rrpc_lun *rlun, + int blk_id) +{ + struct rrpc *rrpc = rlun->rrpc; + int lun_blk = blk_id % rrpc->dev->blks_per_lun; + + return &rlun->blocks[lun_blk]; +} + static inline sector_t rrpc_get_laddr(struct bio *bio) { return bio->bi_iter.bi_sector / NR_PHY_IN_LOG; |