diff options
| author | Matias Bjørling <m@bjorling.me> | 2016-05-06 20:03:18 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-05-06 12:51:10 -0600 |
| commit | 04a8aa173bd9410849526a80dcf733da9c3e142d (patch) | |
| tree | b7f5761b2ac80e594eb191ebb1faf9fb6a9f64d3 /drivers/lightnvm | |
| parent | 976bdfcae32ea10c2c8c2ecaeb0d85873f634dad (diff) | |
| download | linux-rt-04a8aa173bd9410849526a80dcf733da9c3e142d.tar.gz | |
lightnvm: expose gennvm_mark_blk to targets
Targets can update a block state when having a reference to an
in-memory virtual block. In the case that a target does not keep the
block metadata in memory, it does not have a way to update this
structure.
Therefore, expose gennvm_mark_blk() through the media managers
->mark_blk() callback and let targets update the state structure through
this callback.
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/lightnvm')
| -rw-r--r-- | drivers/lightnvm/gennvm.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index 61790aebb8da..33a66d8c039d 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -407,29 +407,28 @@ static void gennvm_put_blk(struct nvm_dev *dev, struct nvm_block *blk) spin_unlock(&vlun->lock); } -static void gennvm_blk_set_type(struct nvm_dev *dev, struct ppa_addr *ppa, - int type) +static void gennvm_mark_blk(struct nvm_dev *dev, struct ppa_addr ppa, int type) { struct gen_nvm *gn = dev->mp; struct gen_lun *lun; struct nvm_block *blk; pr_debug("gennvm: ppa (ch: %u lun: %u blk: %u pg: %u) -> %u\n", - ppa->g.ch, ppa->g.lun, ppa->g.blk, ppa->g.pg, type); + ppa.g.ch, ppa.g.lun, ppa.g.blk, ppa.g.pg, type); - if (unlikely(ppa->g.ch > dev->nr_chnls || - ppa->g.lun > dev->luns_per_chnl || - ppa->g.blk > dev->blks_per_lun)) { + if (unlikely(ppa.g.ch > dev->nr_chnls || + ppa.g.lun > dev->luns_per_chnl || + ppa.g.blk > dev->blks_per_lun)) { WARN_ON_ONCE(1); pr_err("gennvm: ppa broken (ch: %u > %u lun: %u > %u blk: %u > %u", - ppa->g.ch, dev->nr_chnls, - ppa->g.lun, dev->luns_per_chnl, - ppa->g.blk, dev->blks_per_lun); + ppa.g.ch, dev->nr_chnls, + ppa.g.lun, dev->luns_per_chnl, + ppa.g.blk, dev->blks_per_lun); return; } - lun = &gn->luns[ppa->g.lun * ppa->g.ch]; - blk = &lun->vlun.blocks[ppa->g.blk]; + lun = &gn->luns[ppa.g.lun * ppa.g.ch]; + blk = &lun->vlun.blocks[ppa.g.blk]; /* will be moved to bb list on put_blk from target */ blk->state = type; @@ -448,12 +447,12 @@ static void gennvm_mark_blk_bad(struct nvm_dev *dev, struct nvm_rq *rqd) /* look up blocks and mark them as bad */ if (rqd->nr_pages == 1) { - gennvm_blk_set_type(dev, &rqd->ppa_addr, NVM_BLK_ST_BAD); + gennvm_mark_blk(dev, rqd->ppa_addr, NVM_BLK_ST_BAD); return; } while ((bit = find_next_bit(comp_bits, max_secs, bit + 1)) < max_secs) - gennvm_blk_set_type(dev, &rqd->ppa_list[bit], NVM_BLK_ST_BAD); + gennvm_mark_blk(dev, rqd->ppa_list[bit], NVM_BLK_ST_BAD); } static void gennvm_end_io(struct nvm_rq *rqd) @@ -544,6 +543,8 @@ static struct nvmm_type gennvm = { .submit_io = gennvm_submit_io, .erase_blk = gennvm_erase_blk, + .mark_blk = gennvm_mark_blk, + .get_lun = gennvm_get_lun, .reserve_lun = gennvm_reserve_lun, .release_lun = gennvm_release_lun, |