From: Javier González Date: Mon, 28 Nov 2016 21:39:12 +0000 (+0100) Subject: lightnvm: introduce max_phys_sects helper function X-Git-Tag: v4.10-rc1~153^2~26 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a279006afa3377493c4240395c70430f2a9b0d2b;p=platform%2Fkernel%2Flinux-exynos.git lightnvm: introduce max_phys_sects helper function Target devices do not have access to the device driver operations. Introduce a helper function that exposes the max. number of physical sectors supported by the underlying device. Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 69f261e..3d8eaac 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -203,6 +203,14 @@ int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas, } EXPORT_SYMBOL(nvm_set_bb_tbl); +int nvm_max_phys_sects(struct nvm_tgt_dev *tgt_dev) +{ + struct nvm_dev *dev = tgt_dev->parent; + + return dev->ops->max_phys_sect; +} +EXPORT_SYMBOL(nvm_max_phys_sects); + int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd) { struct nvm_dev *dev = tgt_dev->parent; diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 99cd1e7..9637531 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -529,6 +529,7 @@ extern void nvm_unregister(struct nvm_dev *); extern int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas, int type); +extern int nvm_max_phys_sects(struct nvm_tgt_dev *); extern int nvm_submit_io(struct nvm_tgt_dev *, struct nvm_rq *); extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *); extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *);