[PATCH 7/8] lightnvm: introduce max_phys_sects helper function
From: Javier González <hidden>
Date: 2016-11-21 12:11:14
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- drivers/lightnvm/core.c | 8 ++++++++ include/linux/lightnvm.h | 1 + 2 files changed, 9 insertions(+)
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 b3ca603..44780ef 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 *);
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2.7.4