diff options
| author | Igor Konopko <igor.j.konopko@intel.com> | 2019-05-04 21:37:48 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-05-06 19:19:16 +0300 |
| commit | 847a3a2788c57454ab715e07777431cc5fc76f48 (patch) | |
| tree | 548099a55f3ed3b21925851f1ed91dbb40deb69d /drivers/lightnvm/pblk-recovery.c | |
| parent | 8935ebfc5d462891e9dccec1f5cf438fb7bb96b4 (diff) | |
| download | linux-847a3a2788c57454ab715e07777431cc5fc76f48.tar.xz | |
lightnvm: pblk: reduce L2P memory footprint
Currently L2P map size is calculated based on the total number of
available sectors, which is redundant, since it contains mapping for
overprovisioning as well (11% by default).
Change this size to the real capacity and thus reduce the memory
footprint significantly - with default op value it is approx.
110MB of DRAM less for every 1TB of media.
Signed-off-by: Igor Konopko <igor.j.konopko@intel.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-recovery.c')
| -rw-r--r-- | drivers/lightnvm/pblk-recovery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index d86f580036d3..83b467b5edc7 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -474,7 +474,7 @@ retry_rq: lba_list[paddr++] = cpu_to_le64(lba); - if (lba == ADDR_EMPTY || lba > pblk->rl.nr_secs) + if (lba == ADDR_EMPTY || lba >= pblk->capacity) continue; line->nr_valid_lbas++; |