In preparation of supporting RAIL, add a new API pblk_submit_io_sem which takes the lun semaphore before submitting the asynchronous request.
Signed-off-by: Heiner Litz <[email protected]> --- drivers/lightnvm/pblk-core.c | 11 +++++++++++ drivers/lightnvm/pblk.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 2e40666fdf80..a31bf359f905 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -492,6 +492,17 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd) return nvm_submit_io(dev, rqd); } +int pblk_submit_io_sem(struct pblk *pblk, struct nvm_rq *rqd) +{ + struct ppa_addr *ppa_list = nvm_rq_to_ppa_list(rqd); + int ret; + + pblk_down_chunk(pblk, ppa_list[0]); + ret = pblk_submit_io(pblk, rqd); + + return ret; +} + void pblk_check_chunk_state_update(struct pblk *pblk, struct nvm_rq *rqd) { struct ppa_addr *ppa_list = nvm_rq_to_ppa_list(rqd); diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 64d9c206ec52..bd88784e51d9 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -797,6 +797,7 @@ struct nvm_chk_meta *pblk_chunk_get_off(struct pblk *pblk, void pblk_log_write_err(struct pblk *pblk, struct nvm_rq *rqd); void pblk_log_read_err(struct pblk *pblk, struct nvm_rq *rqd); int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd); +int pblk_submit_io_sem(struct pblk *pblk, struct nvm_rq *rqd); int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd); int pblk_submit_io_sync_sem(struct pblk *pblk, struct nvm_rq *rqd); int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line); -- 2.17.1
