diff options
| author |   Matias Bjørling <mb@lightnvm.io> | 2018-10-09 13:11:36 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2018-10-09 08:25:06 -0600 |
| commit | aff3fb18f957de93e629c7d3d2c4ef1f360aa511 (patch) | |
| tree | 9a4d00e5ebdbad312cf5dc4ce3379097010ecb03 /drivers/nvme | |
| parent | lightnvm: pblk: fix race condition on metadata I/O (diff) | |
| download | linux-dev-aff3fb18f957de93e629c7d3d2c4ef1f360aa511.tar.xz linux-dev-aff3fb18f957de93e629c7d3d2c4ef1f360aa511.zip | |
lightnvm: move bad block and chunk state logic to core
pblk implements two data paths for recovery line state. One for 1.2
and another for 2.0, instead of having pblk implement these, combine
them in the core to reduce complexity and make available to other
targets.
The new interface will adhere to the 2.0 chunk definition,
including managing open chunks with an active write pointer. To provide
this interface, a 1.2 device recovers the state of the chunks by
manually detecting if a chunk is either free/open/close/offline, and if
open, scanning the flash pages sequentially to find the next writeable
page. This process takes on average ~10 seconds on a device with 64 dies,
1024 blocks and 60us read access time. The process can be parallelized
but is left out for maintenance simplicity, as the 1.2 specification is
deprecated. For 2.0 devices, the logic is maintained internally in the
drive and retrieved through the 2.0 interface.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/lightnvm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c index 1e4f97538838..e42af7771fe5 100644 --- a/drivers/nvme/host/lightnvm.c +++ b/drivers/nvme/host/lightnvm.c @@ -567,8 +567,8 @@ static int nvme_nvm_set_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr *ppas, * Expect the lba in device format */ static int nvme_nvm_get_chk_meta(struct nvm_dev *ndev, - struct nvm_chk_meta *meta, - sector_t slba, int nchks) + sector_t slba, int nchks, + struct nvm_chk_meta *meta) { struct nvm_geo *geo = &ndev->geo; struct nvme_ns *ns = ndev->q->queuedata; |