diff options
| author | Igor Konopko <igor.j.konopko@intel.com> | 2019-05-04 20:37:48 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-05-06 10:19:16 -0600 |
| commit | 847a3a2788c57454ab715e07777431cc5fc76f48 (patch) | |
| tree | 548099a55f3ed3b21925851f1ed91dbb40deb69d /drivers/lightnvm/pblk.h | |
| parent | 8935ebfc5d462891e9dccec1f5cf438fb7bb96b4 (diff) | |
| download | linux-847a3a2788c57454ab715e07777431cc5fc76f48.tar.bz2 | |
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.h')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index ac3ab778e976..58da72dbef45 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -305,7 +305,6 @@ struct pblk_rl { struct timer_list u_timer; - unsigned long long nr_secs; unsigned long total_blocks; atomic_t free_blocks; /* Total number of free blocks (+ OP) */ |