diff mbox

[2/2] lightnvm: add lun information to show debug interf.

Message ID 1448010085-31281-2-git-send-email-javier@javigon.com (mailing list archive)
State Accepted, archived
Delegated to: Jens Axboe
Headers show

Commit Message

Javier González Nov. 20, 2015, 9:01 a.m. UTC
Add free block, used block, and bad block information to the show debug
interface. This information is used to debug how targets track blocks.

Also, change debug function name to make it more generic.

Signed-off-by: Javier Gonzalez <javier@cnexlabs.com>
---
 drivers/lightnvm/core.c   |  2 +-
 drivers/lightnvm/gennvm.c | 19 ++++++++++++++-----
 include/linux/lightnvm.h  |  4 ++--
 3 files changed, 17 insertions(+), 8 deletions(-)

Comments

Matias Bjorling Nov. 20, 2015, 12:44 p.m. UTC | #1
On 11/20/2015 10:01 AM, Javier Gonzalez wrote:
> Add free block, used block, and bad block information to the show debug
> interface. This information is used to debug how targets track blocks.
>
> Also, change debug function name to make it more generic.
>
> Signed-off-by: Javier Gonzalez <javier@cnexlabs.com>
> ---
>   drivers/lightnvm/core.c   |  2 +-
>   drivers/lightnvm/gennvm.c | 19 ++++++++++++++-----
>   include/linux/lightnvm.h  |  4 ++--
>   3 files changed, 17 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
> index 51e0008..e0072b5 100644
> --- a/drivers/lightnvm/core.c
> +++ b/drivers/lightnvm/core.c
> @@ -544,7 +544,7 @@ static int nvm_configure_show(const char *val)
>   	if (!dev->mt)
>   		return 0;
>
> -	dev->mt->free_blocks_print(dev);
> +	dev->mt->lun_info_print(dev);
>
>   	return 0;
>   }
> diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
> index 43c01e0..e20e74e 100644
> --- a/drivers/lightnvm/gennvm.c
> +++ b/drivers/lightnvm/gennvm.c
> @@ -464,15 +464,24 @@ static struct nvm_lun *gennvm_get_lun(struct nvm_dev *dev, int lunid)
>   	return &gn->luns[lunid].vlun;
>   }
>
> -static void gennvm_free_blocks_print(struct nvm_dev *dev)
> +static void gennvm_lun_info_print(struct nvm_dev *dev)
>   {
>   	struct gen_nvm *gn = dev->mp;
>   	struct gen_lun *lun;
>   	unsigned int i;
>
> -	gennvm_for_each_lun(gn, lun, i)
> -		pr_info("%s: lun%8u\t%u\n",
> -					dev->name, i, lun->vlun.nr_free_blocks);
> +
> +	gennvm_for_each_lun(gn, lun, i) {
> +		spin_lock(&lun->vlun.lock);
> +
> +		pr_info("%s: lun%8u\t%u\t%u\t%u\n",
> +				dev->name, i,
> +				lun->vlun.nr_free_blocks,
> +				lun->vlun.nr_inuse_blocks,
> +				lun->vlun.nr_bad_blocks);
> +
> +		spin_unlock(&lun->vlun.lock);
> +	}
>   }
>
>   static struct nvmm_type gennvm = {
> @@ -490,7 +499,7 @@ static struct nvmm_type gennvm = {
>   	.erase_blk	= gennvm_erase_blk,
>
>   	.get_lun	= gennvm_get_lun,
> -	.free_blocks_print = gennvm_free_blocks_print,
> +	.lun_info_print = gennvm_lun_info_print,
>   };
>
>   static int __init gennvm_module_init(void)
> diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
> index 76acd15..e527d67 100644
> --- a/include/linux/lightnvm.h
> +++ b/include/linux/lightnvm.h
> @@ -380,7 +380,7 @@ typedef int (nvmm_end_io_fn)(struct nvm_rq *, int);
>   typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *,
>   								unsigned long);
>   typedef struct nvm_lun *(nvmm_get_lun_fn)(struct nvm_dev *, int);
> -typedef void (nvmm_free_blocks_print_fn)(struct nvm_dev *);
> +typedef void (nvmm_lun_info_print_fn)(struct nvm_dev *);
>
>   struct nvmm_type {
>   	const char *name;
> @@ -404,7 +404,7 @@ struct nvmm_type {
>   	nvmm_get_lun_fn *get_lun;
>
>   	/* Statistics */
> -	nvmm_free_blocks_print_fn *free_blocks_print;
> +	nvmm_lun_info_print_fn *lun_info_print;
>   	struct list_head list;
>   };
>
>

Thanks, applied.
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diff mbox

Patch

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 51e0008..e0072b5 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -544,7 +544,7 @@  static int nvm_configure_show(const char *val)
 	if (!dev->mt)
 		return 0;
 
-	dev->mt->free_blocks_print(dev);
+	dev->mt->lun_info_print(dev);
 
 	return 0;
 }
diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c
index 43c01e0..e20e74e 100644
--- a/drivers/lightnvm/gennvm.c
+++ b/drivers/lightnvm/gennvm.c
@@ -464,15 +464,24 @@  static struct nvm_lun *gennvm_get_lun(struct nvm_dev *dev, int lunid)
 	return &gn->luns[lunid].vlun;
 }
 
-static void gennvm_free_blocks_print(struct nvm_dev *dev)
+static void gennvm_lun_info_print(struct nvm_dev *dev)
 {
 	struct gen_nvm *gn = dev->mp;
 	struct gen_lun *lun;
 	unsigned int i;
 
-	gennvm_for_each_lun(gn, lun, i)
-		pr_info("%s: lun%8u\t%u\n",
-					dev->name, i, lun->vlun.nr_free_blocks);
+
+	gennvm_for_each_lun(gn, lun, i) {
+		spin_lock(&lun->vlun.lock);
+
+		pr_info("%s: lun%8u\t%u\t%u\t%u\n",
+				dev->name, i,
+				lun->vlun.nr_free_blocks,
+				lun->vlun.nr_inuse_blocks,
+				lun->vlun.nr_bad_blocks);
+
+		spin_unlock(&lun->vlun.lock);
+	}
 }
 
 static struct nvmm_type gennvm = {
@@ -490,7 +499,7 @@  static struct nvmm_type gennvm = {
 	.erase_blk	= gennvm_erase_blk,
 
 	.get_lun	= gennvm_get_lun,
-	.free_blocks_print = gennvm_free_blocks_print,
+	.lun_info_print = gennvm_lun_info_print,
 };
 
 static int __init gennvm_module_init(void)
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 76acd15..e527d67 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -380,7 +380,7 @@  typedef int (nvmm_end_io_fn)(struct nvm_rq *, int);
 typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *,
 								unsigned long);
 typedef struct nvm_lun *(nvmm_get_lun_fn)(struct nvm_dev *, int);
-typedef void (nvmm_free_blocks_print_fn)(struct nvm_dev *);
+typedef void (nvmm_lun_info_print_fn)(struct nvm_dev *);
 
 struct nvmm_type {
 	const char *name;
@@ -404,7 +404,7 @@  struct nvmm_type {
 	nvmm_get_lun_fn *get_lun;
 
 	/* Statistics */
-	nvmm_free_blocks_print_fn *free_blocks_print;
+	nvmm_lun_info_print_fn *lun_info_print;
 	struct list_head list;
 };