diff options
author | Matias Bjørling <m@bjorling.me> | 2016-07-07 09:54:14 +0200 |
---|---|---|
committer | Jens Axboe <axboe@fb.com> | 2016-07-07 08:51:52 -0600 |
commit | 077d2389994197277f4f7662b13d11b2f67646a7 (patch) | |
tree | 1bd9690d5a449a78def55930963de35e699ca49e /drivers/lightnvm/gennvm.c | |
parent | 12624af26e59095a1b5216670028390177aa5820 (diff) |
lightnvm: remove open/close statistics for gennvm
The responsibility of the media manager is not to keep track of
open/closed blocks. This is better maintained within a target,
that already manages this information on writes.
Remove the statistics and merge the states NVM_BLK_ST_OPEN and
NVM_BLK_ST_CLOSED.
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/lightnvm/gennvm.c')
-rw-r--r-- | drivers/lightnvm/gennvm.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index ec9fb6876e38..1a3e1649346b 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -122,9 +122,6 @@ static int gennvm_luns_init(struct nvm_dev *dev, struct gen_nvm *gn) lun->vlun.lun_id = i % dev->luns_per_chnl; lun->vlun.chnl_id = i / dev->luns_per_chnl; lun->vlun.nr_free_blocks = dev->blks_per_lun; - lun->vlun.nr_open_blocks = 0; - lun->vlun.nr_closed_blocks = 0; - lun->vlun.nr_bad_blocks = 0; } return 0; } @@ -149,7 +146,6 @@ static int gennvm_block_bb(struct gen_nvm *gn, struct ppa_addr ppa, blk = &lun->vlun.blocks[i]; list_move_tail(&blk->list, &lun->bb_list); - lun->vlun.nr_bad_blocks++; lun->vlun.nr_free_blocks--; } @@ -200,9 +196,8 @@ static int gennvm_block_map(u64 slba, u32 nlb, __le64 *entries, void *private) * block state. The block is assumed to be open. */ list_move_tail(&blk->list, &lun->used_list); - blk->state = NVM_BLK_ST_OPEN; + blk->state = NVM_BLK_ST_TGT; lun->vlun.nr_free_blocks--; - lun->vlun.nr_open_blocks++; } } @@ -346,11 +341,10 @@ static struct nvm_block *gennvm_get_blk_unlocked(struct nvm_dev *dev, goto out; blk = list_first_entry(&lun->free_list, struct nvm_block, list); - list_move_tail(&blk->list, &lun->used_list); - blk->state = NVM_BLK_ST_OPEN; + list_move_tail(&blk->list, &lun->used_list); + blk->state = NVM_BLK_ST_TGT; lun->vlun.nr_free_blocks--; - lun->vlun.nr_open_blocks++; out: return blk; @@ -374,27 +368,18 @@ static void gennvm_put_blk_unlocked(struct nvm_dev *dev, struct nvm_block *blk) assert_spin_locked(&vlun->lock); - if (blk->state & NVM_BLK_ST_OPEN) { - list_move_tail(&blk->list, &lun->free_list); - lun->vlun.nr_open_blocks--; - lun->vlun.nr_free_blocks++; - blk->state = NVM_BLK_ST_FREE; - } else if (blk->state & NVM_BLK_ST_CLOSED) { + if (blk->state & NVM_BLK_ST_TGT) { list_move_tail(&blk->list, &lun->free_list); - lun->vlun.nr_closed_blocks--; lun->vlun.nr_free_blocks++; blk->state = NVM_BLK_ST_FREE; } else if (blk->state & NVM_BLK_ST_BAD) { list_move_tail(&blk->list, &lun->bb_list); - lun->vlun.nr_bad_blocks++; blk->state = NVM_BLK_ST_BAD; } else { WARN_ON_ONCE(1); pr_err("gennvm: erroneous block type (%lu -> %u)\n", blk->id, blk->state); list_move_tail(&blk->list, &lun->bb_list); - lun->vlun.nr_bad_blocks++; - blk->state = NVM_BLK_ST_BAD; } } @@ -516,12 +501,8 @@ static void gennvm_lun_info_print(struct nvm_dev *dev) gennvm_for_each_lun(gn, lun, i) { spin_lock(&lun->vlun.lock); - pr_info("%s: lun%8u\t%u\t%u\t%u\t%u\n", - dev->name, i, - lun->vlun.nr_free_blocks, - lun->vlun.nr_open_blocks, - lun->vlun.nr_closed_blocks, - lun->vlun.nr_bad_blocks); + pr_info("%s: lun%8u\t%u\n", dev->name, i, + lun->vlun.nr_free_blocks); spin_unlock(&lun->vlun.lock); } |