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lightnvm: simplify geometry structure

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Currently, the device geometry is stored redundantly in the nvm_id and
nvm_geo structures at a device level. Moreover, when instantiating
targets on a specific number of LUNs, these structures are replicated
and manually modified to fit the instance channel and LUN partitioning.

Instead, create a generic geometry around nvm_geo, which can be used by
(i) the underlying device to describe the geometry of the whole device,
and (ii) instances to describe their geometry independently.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González
2018-03-30 00:05:10 +02:00
committed by Jens Axboe
parent 43d4712721
commit e46f4e4822
12 changed files with 452 additions and 426 deletions
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2
drivers/lightnvm/pblk-gc.c
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@@ -88,7 +88,7 @@ static void pblk_gc_line_ws(struct work_struct *work)
up(&gc->gc_sem);
gc_rq->data = vmalloc(gc_rq->nr_secs * geo->sec_size);
gc_rq->data = vmalloc(gc_rq->nr_secs * geo->csecs);
if (!gc_rq->data) {
pr_err("pblk: could not GC line:%d (%d/%d)\n",
line->id, *line->vsc, gc_rq->nr_secs);