diff options
| author | Igor Konopko <igor.j.konopko@intel.com> | 2018-12-11 20:16:24 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-11 12:22:35 -0700 |
| commit | 24828d0536bbedc9b265f2b01ffca99de3f6a7c7 (patch) | |
| tree | bf902aa63b71543db101677c5bfef73b7d757fee /drivers/lightnvm/pblk-recovery.c | |
| parent | faa79f27f0a46cd6c3ac3de5e7f3e142598217fc (diff) | |
| download | linux-24828d0536bbedc9b265f2b01ffca99de3f6a7c7.tar.gz | |
lightnvm: dynamic DMA pool entry size
Currently lightnvm and pblk uses single DMA pool, for which the entry size always is equal to PAGE_SIZE. The contents of each entry allocated from the DMA pool consists of a PPA list (8bytes * 64), leaving 56bytes * 64 space for metadata. Since the metadata field can be bigger, such as 128 bytes, the static size does not cover this use-case. This patch adds support for I/O metadata above 56 bytes by changing DMA pool size based on device meta size and allows pblk to use OOB metadata >=16B. Reviewed-by: Javier González <javier@cnexlabs.com> Signed-off-by: Igor Konopko <igor.j.konopko@intel.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 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index e4dd634ba05f..3a775d10f616 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -481,8 +481,8 @@ static int pblk_recov_l2p_from_oob(struct pblk *pblk, struct pblk_line *line) if (!meta_list) return -ENOMEM; - ppa_list = (void *)(meta_list) + pblk_dma_meta_size; - dma_ppa_list = dma_meta_list + pblk_dma_meta_size; + ppa_list = (void *)(meta_list) + pblk_dma_meta_size(pblk); + dma_ppa_list = dma_meta_list + pblk_dma_meta_size(pblk); data = kcalloc(pblk->max_write_pgs, geo->csecs, GFP_KERNEL); if (!data) { |