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lightnvm: pblk: add debug stat for read cache hits

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Add a new debug counter to measure cache hits on the read path

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González
2017-06-26 11:57:13 +02:00
committed by Jens Axboe
parent caa69fa560
commit db7ada33cd
4 changed files with 10 additions and 1 deletions
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1
drivers/lightnvm/pblk-init.c
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@@ -839,6 +839,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
atomic_long_set(&pblk->sync_writes, 0);
atomic_long_set(&pblk->compl_writes, 0);
atomic_long_set(&pblk->inflight_reads, 0);
atomic_long_set(&pblk->cache_reads, 0);
atomic_long_set(&pblk->sync_reads, 0);
atomic_long_set(&pblk->recov_writes, 0);
atomic_long_set(&pblk->recov_writes, 0);