Commit 7100d50a authored by Javier González's avatar Javier González Committed by Jens Axboe
Browse files

lightnvm: make address conversions depend on generic device 



On address conversions, use the generic device, instead of the target
device. This allows to use conversions outside of the target's realm.

Signed-off-by: default avatarJavier González <javier@cnexlabs.com>
Signed-off-by: default avatarMatias Bjørling <mb@lightnvm.io>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 69471513

drivers/lightnvm/core.c

+2 −2
Original line number Diff line number Diff line
@@ -581,7 +581,7 @@ static void nvm_ppa_tgt_to_dev(struct nvm_tgt_dev *tgt_dev, 


	for (i = 0; i < nr_ppas; i++) {

		nvm_map_to_dev(tgt_dev, &ppa_list[i]);

		ppa_list[i] = generic_to_dev_addr(tgt_dev, ppa_list[i]);

		ppa_list[i] = generic_to_dev_addr(tgt_dev->parent, ppa_list[i]);

	}

}
@@ -591,7 +591,7 @@ static void nvm_ppa_dev_to_tgt(struct nvm_tgt_dev *tgt_dev, 
	int i;



	for (i = 0; i < nr_ppas; i++) {

		ppa_list[i] = dev_to_generic_addr(tgt_dev, ppa_list[i]);

		ppa_list[i] = dev_to_generic_addr(tgt_dev->parent, ppa_list[i]);

		nvm_map_to_tgt(tgt_dev, &ppa_list[i]);

	}

}

include/linux/lightnvm.h

+4 −4
Original line number Diff line number Diff line
@@ -397,10 +397,10 @@ struct nvm_dev { 
	struct list_head targets;

};



static inline struct ppa_addr generic_to_dev_addr(struct nvm_tgt_dev *tgt_dev,

static inline struct ppa_addr generic_to_dev_addr(struct nvm_dev *dev,

						  struct ppa_addr r)

{

	struct nvm_geo *geo = &tgt_dev->geo;

	struct nvm_geo *geo = &dev->geo;

	struct ppa_addr l;



	if (geo->version == NVM_OCSSD_SPEC_12) {
@@ -424,10 +424,10 @@ static inline struct ppa_addr generic_to_dev_addr(struct nvm_tgt_dev *tgt_dev, 
	return l;

}



static inline struct ppa_addr dev_to_generic_addr(struct nvm_tgt_dev *tgt_dev,

static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev,

						  struct ppa_addr r)

{

	struct nvm_geo *geo = &tgt_dev->geo;

	struct nvm_geo *geo = &dev->geo;

	struct ppa_addr l;



	l.ppa = 0;