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* [PATCH v4 1/4] dm dust: report some message results back to user directly
@ 2020-06-19 21:10 Bryan Gurney
  2020-06-20  0:55 ` yangerkun
  2020-06-28  1:08 ` yangerkun
  0 siblings, 2 replies; 4+ messages in thread
From: Bryan Gurney @ 2020-06-19 21:10 UTC (permalink / raw)
  To: dm-devel, snitzer, agk; +Cc: yangerkun, Bryan Gurney

From: yangerkun <yangerkun@huawei.com>

From: yangerkun <yangerkun@huawei.com>

Some type of message(queryblock/countbadblocks/removebadblock) may better
report results to user directly. Do it with DMEMIT.

[Bryan: maintain __func__ output in DMEMIT messages]

Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Bryan Gurney <bgurney@redhat.com>
---
 drivers/md/dm-dust.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c
index ff03b90072c5..f1f2dd6a4e84 100644
--- a/drivers/md/dm-dust.c
+++ b/drivers/md/dm-dust.c
@@ -138,20 +138,22 @@ static int dust_add_block(struct dust_device *dd, unsigned long long block,
 	return 0;
 }
 
-static int dust_query_block(struct dust_device *dd, unsigned long long block)
+static int dust_query_block(struct dust_device *dd, unsigned long long block, char *result,
+			    unsigned int maxlen, unsigned int *sz_ptr)
 {
 	struct badblock *bblock;
 	unsigned long flags;
+	unsigned int sz = *sz_ptr;
 
 	spin_lock_irqsave(&dd->dust_lock, flags);
 	bblock = dust_rb_search(&dd->badblocklist, block);
 	if (bblock != NULL)
-		DMINFO("%s: block %llu found in badblocklist", __func__, block);
+		DMEMIT("%s: block %llu found in badblocklist", __func__, block);
 	else
-		DMINFO("%s: block %llu not found in badblocklist", __func__, block);
+		DMEMIT("%s: block %llu not found in badblocklist", __func__, block);
 	spin_unlock_irqrestore(&dd->dust_lock, flags);
 
-	return 0;
+	return 1;
 }
 
 static int __dust_map_read(struct dust_device *dd, sector_t thisblock)
@@ -259,11 +261,13 @@ static bool __dust_clear_badblocks(struct rb_root *tree,
 	return true;
 }
 
-static int dust_clear_badblocks(struct dust_device *dd)
+static int dust_clear_badblocks(struct dust_device *dd, char *result, unsigned int maxlen,
+				unsigned int *sz_ptr)
 {
 	unsigned long flags;
 	struct rb_root badblocklist;
 	unsigned long long badblock_count;
+	unsigned int sz = *sz_ptr;
 
 	spin_lock_irqsave(&dd->dust_lock, flags);
 	badblocklist = dd->badblocklist;
@@ -273,11 +277,11 @@ static int dust_clear_badblocks(struct dust_device *dd)
 	spin_unlock_irqrestore(&dd->dust_lock, flags);
 
 	if (!__dust_clear_badblocks(&badblocklist, badblock_count))
-		DMINFO("%s: no badblocks found", __func__);
+		DMEMIT("%s: no badblocks found", __func__);
 	else
-		DMINFO("%s: badblocks cleared", __func__);
+		DMEMIT("%s: badblocks cleared", __func__);
 
-	return 0;
+	return 1;
 }
 
 /*
@@ -383,7 +387,7 @@ static void dust_dtr(struct dm_target *ti)
 }
 
 static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
-			char *result_buf, unsigned int maxlen)
+			char *result, unsigned int maxlen)
 {
 	struct dust_device *dd = ti->private;
 	sector_t size = i_size_read(dd->dev->bdev->bd_inode) >> SECTOR_SHIFT;
@@ -393,6 +397,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
 	unsigned char wr_fail_cnt;
 	unsigned int tmp_ui;
 	unsigned long flags;
+	unsigned int sz = 0;
 	char dummy;
 
 	if (argc == 1) {
@@ -410,12 +415,12 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
 			r = 0;
 		} else if (!strcasecmp(argv[0], "countbadblocks")) {
 			spin_lock_irqsave(&dd->dust_lock, flags);
-			DMINFO("countbadblocks: %llu badblock(s) found",
+			DMEMIT("countbadblocks: %llu badblock(s) found",
 			       dd->badblock_count);
 			spin_unlock_irqrestore(&dd->dust_lock, flags);
-			r = 0;
+			r = 1;
 		} else if (!strcasecmp(argv[0], "clearbadblocks")) {
-			r = dust_clear_badblocks(dd);
+			r = dust_clear_badblocks(dd, result, maxlen, &sz);
 		} else if (!strcasecmp(argv[0], "quiet")) {
 			if (!dd->quiet_mode)
 				dd->quiet_mode = true;
@@ -441,7 +446,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
 		else if (!strcasecmp(argv[0], "removebadblock"))
 			r = dust_remove_block(dd, block);
 		else if (!strcasecmp(argv[0], "queryblock"))
-			r = dust_query_block(dd, block);
+			r = dust_query_block(dd, block, result, maxlen, &sz);
 		else
 			invalid_msg = true;
 
-- 
2.25.4

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [PATCH v4 1/4] dm dust: report some message results back to user directly
  2020-06-19 21:10 [PATCH v4 1/4] dm dust: report some message results back to user directly Bryan Gurney
@ 2020-06-20  0:55 ` yangerkun
  2020-06-28  1:08 ` yangerkun
  1 sibling, 0 replies; 4+ messages in thread
From: yangerkun @ 2020-06-20  0:55 UTC (permalink / raw)
  To: Bryan Gurney, dm-devel, snitzer, agk

Hi,

Thanks a lot for your fix and this patchset! It looks better than
before!

Thanks,
Kun.

在 2020/6/20 5:10, Bryan Gurney 写道:
> From: yangerkun <yangerkun@huawei.com>
> 
> From: yangerkun <yangerkun@huawei.com>
> 
> Some type of message(queryblock/countbadblocks/removebadblock) may better
> report results to user directly. Do it with DMEMIT.
> 
> [Bryan: maintain __func__ output in DMEMIT messages]
> 
> Signed-off-by: yangerkun <yangerkun@huawei.com>
> Signed-off-by: Bryan Gurney <bgurney@redhat.com>
> ---
>   drivers/md/dm-dust.c | 31 ++++++++++++++++++-------------
>   1 file changed, 18 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c
> index ff03b90072c5..f1f2dd6a4e84 100644
> --- a/drivers/md/dm-dust.c
> +++ b/drivers/md/dm-dust.c
> @@ -138,20 +138,22 @@ static int dust_add_block(struct dust_device *dd, unsigned long long block,
>   	return 0;
>   }
>   
> -static int dust_query_block(struct dust_device *dd, unsigned long long block)
> +static int dust_query_block(struct dust_device *dd, unsigned long long block, char *result,
> +			    unsigned int maxlen, unsigned int *sz_ptr)
>   {
>   	struct badblock *bblock;
>   	unsigned long flags;
> +	unsigned int sz = *sz_ptr;
>   
>   	spin_lock_irqsave(&dd->dust_lock, flags);
>   	bblock = dust_rb_search(&dd->badblocklist, block);
>   	if (bblock != NULL)
> -		DMINFO("%s: block %llu found in badblocklist", __func__, block);
> +		DMEMIT("%s: block %llu found in badblocklist", __func__, block);
>   	else
> -		DMINFO("%s: block %llu not found in badblocklist", __func__, block);
> +		DMEMIT("%s: block %llu not found in badblocklist", __func__, block);
>   	spin_unlock_irqrestore(&dd->dust_lock, flags);
>   
> -	return 0;
> +	return 1;
>   }
>   
>   static int __dust_map_read(struct dust_device *dd, sector_t thisblock)
> @@ -259,11 +261,13 @@ static bool __dust_clear_badblocks(struct rb_root *tree,
>   	return true;
>   }
>   
> -static int dust_clear_badblocks(struct dust_device *dd)
> +static int dust_clear_badblocks(struct dust_device *dd, char *result, unsigned int maxlen,
> +				unsigned int *sz_ptr)
>   {
>   	unsigned long flags;
>   	struct rb_root badblocklist;
>   	unsigned long long badblock_count;
> +	unsigned int sz = *sz_ptr;
>   
>   	spin_lock_irqsave(&dd->dust_lock, flags);
>   	badblocklist = dd->badblocklist;
> @@ -273,11 +277,11 @@ static int dust_clear_badblocks(struct dust_device *dd)
>   	spin_unlock_irqrestore(&dd->dust_lock, flags);
>   
>   	if (!__dust_clear_badblocks(&badblocklist, badblock_count))
> -		DMINFO("%s: no badblocks found", __func__);
> +		DMEMIT("%s: no badblocks found", __func__);
>   	else
> -		DMINFO("%s: badblocks cleared", __func__);
> +		DMEMIT("%s: badblocks cleared", __func__);
>   
> -	return 0;
> +	return 1;
>   }
>   
>   /*
> @@ -383,7 +387,7 @@ static void dust_dtr(struct dm_target *ti)
>   }
>   
>   static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> -			char *result_buf, unsigned int maxlen)
> +			char *result, unsigned int maxlen)
>   {
>   	struct dust_device *dd = ti->private;
>   	sector_t size = i_size_read(dd->dev->bdev->bd_inode) >> SECTOR_SHIFT;
> @@ -393,6 +397,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   	unsigned char wr_fail_cnt;
>   	unsigned int tmp_ui;
>   	unsigned long flags;
> +	unsigned int sz = 0;
>   	char dummy;
>   
>   	if (argc == 1) {
> @@ -410,12 +415,12 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   			r = 0;
>   		} else if (!strcasecmp(argv[0], "countbadblocks")) {
>   			spin_lock_irqsave(&dd->dust_lock, flags);
> -			DMINFO("countbadblocks: %llu badblock(s) found",
> +			DMEMIT("countbadblocks: %llu badblock(s) found",
>   			       dd->badblock_count);
>   			spin_unlock_irqrestore(&dd->dust_lock, flags);
> -			r = 0;
> +			r = 1;
>   		} else if (!strcasecmp(argv[0], "clearbadblocks")) {
> -			r = dust_clear_badblocks(dd);
> +			r = dust_clear_badblocks(dd, result, maxlen, &sz);
>   		} else if (!strcasecmp(argv[0], "quiet")) {
>   			if (!dd->quiet_mode)
>   				dd->quiet_mode = true;
> @@ -441,7 +446,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   		else if (!strcasecmp(argv[0], "removebadblock"))
>   			r = dust_remove_block(dd, block);
>   		else if (!strcasecmp(argv[0], "queryblock"))
> -			r = dust_query_block(dd, block);
> +			r = dust_query_block(dd, block, result, maxlen, &sz);
>   		else
>   			invalid_msg = true;
>   
> 


--
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dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH v4 1/4] dm dust: report some message results back to user directly
  2020-06-19 21:10 [PATCH v4 1/4] dm dust: report some message results back to user directly Bryan Gurney
  2020-06-20  0:55 ` yangerkun
@ 2020-06-28  1:08 ` yangerkun
  2020-06-28 15:08   ` Mike Snitzer
  1 sibling, 1 reply; 4+ messages in thread
From: yangerkun @ 2020-06-28  1:08 UTC (permalink / raw)
  To: Bryan Gurney, dm-devel, snitzer, agk

Hi Mike, does there any advice for this patchset?

Thanks,
Kun.

在 2020/6/20 5:10, Bryan Gurney 写道:
> From: yangerkun <yangerkun@huawei.com>
> 
> From: yangerkun <yangerkun@huawei.com>
> 
> Some type of message(queryblock/countbadblocks/removebadblock) may better
> report results to user directly. Do it with DMEMIT.
> 
> [Bryan: maintain __func__ output in DMEMIT messages]
> 
> Signed-off-by: yangerkun <yangerkun@huawei.com>
> Signed-off-by: Bryan Gurney <bgurney@redhat.com>
> ---
>   drivers/md/dm-dust.c | 31 ++++++++++++++++++-------------
>   1 file changed, 18 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c
> index ff03b90072c5..f1f2dd6a4e84 100644
> --- a/drivers/md/dm-dust.c
> +++ b/drivers/md/dm-dust.c
> @@ -138,20 +138,22 @@ static int dust_add_block(struct dust_device *dd, unsigned long long block,
>   	return 0;
>   }
>   
> -static int dust_query_block(struct dust_device *dd, unsigned long long block)
> +static int dust_query_block(struct dust_device *dd, unsigned long long block, char *result,
> +			    unsigned int maxlen, unsigned int *sz_ptr)
>   {
>   	struct badblock *bblock;
>   	unsigned long flags;
> +	unsigned int sz = *sz_ptr;
>   
>   	spin_lock_irqsave(&dd->dust_lock, flags);
>   	bblock = dust_rb_search(&dd->badblocklist, block);
>   	if (bblock != NULL)
> -		DMINFO("%s: block %llu found in badblocklist", __func__, block);
> +		DMEMIT("%s: block %llu found in badblocklist", __func__, block);
>   	else
> -		DMINFO("%s: block %llu not found in badblocklist", __func__, block);
> +		DMEMIT("%s: block %llu not found in badblocklist", __func__, block);
>   	spin_unlock_irqrestore(&dd->dust_lock, flags);
>   
> -	return 0;
> +	return 1;
>   }
>   
>   static int __dust_map_read(struct dust_device *dd, sector_t thisblock)
> @@ -259,11 +261,13 @@ static bool __dust_clear_badblocks(struct rb_root *tree,
>   	return true;
>   }
>   
> -static int dust_clear_badblocks(struct dust_device *dd)
> +static int dust_clear_badblocks(struct dust_device *dd, char *result, unsigned int maxlen,
> +				unsigned int *sz_ptr)
>   {
>   	unsigned long flags;
>   	struct rb_root badblocklist;
>   	unsigned long long badblock_count;
> +	unsigned int sz = *sz_ptr;
>   
>   	spin_lock_irqsave(&dd->dust_lock, flags);
>   	badblocklist = dd->badblocklist;
> @@ -273,11 +277,11 @@ static int dust_clear_badblocks(struct dust_device *dd)
>   	spin_unlock_irqrestore(&dd->dust_lock, flags);
>   
>   	if (!__dust_clear_badblocks(&badblocklist, badblock_count))
> -		DMINFO("%s: no badblocks found", __func__);
> +		DMEMIT("%s: no badblocks found", __func__);
>   	else
> -		DMINFO("%s: badblocks cleared", __func__);
> +		DMEMIT("%s: badblocks cleared", __func__);
>   
> -	return 0;
> +	return 1;
>   }
>   
>   /*
> @@ -383,7 +387,7 @@ static void dust_dtr(struct dm_target *ti)
>   }
>   
>   static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> -			char *result_buf, unsigned int maxlen)
> +			char *result, unsigned int maxlen)
>   {
>   	struct dust_device *dd = ti->private;
>   	sector_t size = i_size_read(dd->dev->bdev->bd_inode) >> SECTOR_SHIFT;
> @@ -393,6 +397,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   	unsigned char wr_fail_cnt;
>   	unsigned int tmp_ui;
>   	unsigned long flags;
> +	unsigned int sz = 0;
>   	char dummy;
>   
>   	if (argc == 1) {
> @@ -410,12 +415,12 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   			r = 0;
>   		} else if (!strcasecmp(argv[0], "countbadblocks")) {
>   			spin_lock_irqsave(&dd->dust_lock, flags);
> -			DMINFO("countbadblocks: %llu badblock(s) found",
> +			DMEMIT("countbadblocks: %llu badblock(s) found",
>   			       dd->badblock_count);
>   			spin_unlock_irqrestore(&dd->dust_lock, flags);
> -			r = 0;
> +			r = 1;
>   		} else if (!strcasecmp(argv[0], "clearbadblocks")) {
> -			r = dust_clear_badblocks(dd);
> +			r = dust_clear_badblocks(dd, result, maxlen, &sz);
>   		} else if (!strcasecmp(argv[0], "quiet")) {
>   			if (!dd->quiet_mode)
>   				dd->quiet_mode = true;
> @@ -441,7 +446,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
>   		else if (!strcasecmp(argv[0], "removebadblock"))
>   			r = dust_remove_block(dd, block);
>   		else if (!strcasecmp(argv[0], "queryblock"))
> -			r = dust_query_block(dd, block);
> +			r = dust_query_block(dd, block, result, maxlen, &sz);
>   		else
>   			invalid_msg = true;
>   
> 


--
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dm-devel@redhat.com
https://www.redhat.com/mailman/listinfo/dm-devel

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH v4 1/4] dm dust: report some message results back to user directly
  2020-06-28  1:08 ` yangerkun
@ 2020-06-28 15:08   ` Mike Snitzer
  0 siblings, 0 replies; 4+ messages in thread
From: Mike Snitzer @ 2020-06-28 15:08 UTC (permalink / raw)
  To: yangerkun; +Cc: dm-devel, agk, Bryan Gurney

It is on the dm-devel patchwork list to pick up for the 5.9 merge
window.  I've just been busy with other work.

Thanks,
Mike

On Sat, Jun 27 2020 at  9:08pm -0400,
yangerkun <yangerkun@huawei.com> wrote:

> Hi Mike, does there any advice for this patchset?
> 
> Thanks,
> Kun.
> 
> 在 2020/6/20 5:10, Bryan Gurney 写道:
> >From: yangerkun <yangerkun@huawei.com>
> >
> >From: yangerkun <yangerkun@huawei.com>
> >
> >Some type of message(queryblock/countbadblocks/removebadblock) may better
> >report results to user directly. Do it with DMEMIT.
> >
> >[Bryan: maintain __func__ output in DMEMIT messages]
> >
> >Signed-off-by: yangerkun <yangerkun@huawei.com>
> >Signed-off-by: Bryan Gurney <bgurney@redhat.com>
> >---
> >  drivers/md/dm-dust.c | 31 ++++++++++++++++++-------------
> >  1 file changed, 18 insertions(+), 13 deletions(-)
> >
> >diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c
> >index ff03b90072c5..f1f2dd6a4e84 100644
> >--- a/drivers/md/dm-dust.c
> >+++ b/drivers/md/dm-dust.c
> >@@ -138,20 +138,22 @@ static int dust_add_block(struct dust_device *dd, unsigned long long block,
> >  	return 0;
> >  }
> >-static int dust_query_block(struct dust_device *dd, unsigned long long block)
> >+static int dust_query_block(struct dust_device *dd, unsigned long long block, char *result,
> >+			    unsigned int maxlen, unsigned int *sz_ptr)
> >  {
> >  	struct badblock *bblock;
> >  	unsigned long flags;
> >+	unsigned int sz = *sz_ptr;
> >  	spin_lock_irqsave(&dd->dust_lock, flags);
> >  	bblock = dust_rb_search(&dd->badblocklist, block);
> >  	if (bblock != NULL)
> >-		DMINFO("%s: block %llu found in badblocklist", __func__, block);
> >+		DMEMIT("%s: block %llu found in badblocklist", __func__, block);
> >  	else
> >-		DMINFO("%s: block %llu not found in badblocklist", __func__, block);
> >+		DMEMIT("%s: block %llu not found in badblocklist", __func__, block);
> >  	spin_unlock_irqrestore(&dd->dust_lock, flags);
> >-	return 0;
> >+	return 1;
> >  }
> >  static int __dust_map_read(struct dust_device *dd, sector_t thisblock)
> >@@ -259,11 +261,13 @@ static bool __dust_clear_badblocks(struct rb_root *tree,
> >  	return true;
> >  }
> >-static int dust_clear_badblocks(struct dust_device *dd)
> >+static int dust_clear_badblocks(struct dust_device *dd, char *result, unsigned int maxlen,
> >+				unsigned int *sz_ptr)
> >  {
> >  	unsigned long flags;
> >  	struct rb_root badblocklist;
> >  	unsigned long long badblock_count;
> >+	unsigned int sz = *sz_ptr;
> >  	spin_lock_irqsave(&dd->dust_lock, flags);
> >  	badblocklist = dd->badblocklist;
> >@@ -273,11 +277,11 @@ static int dust_clear_badblocks(struct dust_device *dd)
> >  	spin_unlock_irqrestore(&dd->dust_lock, flags);
> >  	if (!__dust_clear_badblocks(&badblocklist, badblock_count))
> >-		DMINFO("%s: no badblocks found", __func__);
> >+		DMEMIT("%s: no badblocks found", __func__);
> >  	else
> >-		DMINFO("%s: badblocks cleared", __func__);
> >+		DMEMIT("%s: badblocks cleared", __func__);
> >-	return 0;
> >+	return 1;
> >  }
> >  /*
> >@@ -383,7 +387,7 @@ static void dust_dtr(struct dm_target *ti)
> >  }
> >  static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> >-			char *result_buf, unsigned int maxlen)
> >+			char *result, unsigned int maxlen)
> >  {
> >  	struct dust_device *dd = ti->private;
> >  	sector_t size = i_size_read(dd->dev->bdev->bd_inode) >> SECTOR_SHIFT;
> >@@ -393,6 +397,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> >  	unsigned char wr_fail_cnt;
> >  	unsigned int tmp_ui;
> >  	unsigned long flags;
> >+	unsigned int sz = 0;
> >  	char dummy;
> >  	if (argc == 1) {
> >@@ -410,12 +415,12 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> >  			r = 0;
> >  		} else if (!strcasecmp(argv[0], "countbadblocks")) {
> >  			spin_lock_irqsave(&dd->dust_lock, flags);
> >-			DMINFO("countbadblocks: %llu badblock(s) found",
> >+			DMEMIT("countbadblocks: %llu badblock(s) found",
> >  			       dd->badblock_count);
> >  			spin_unlock_irqrestore(&dd->dust_lock, flags);
> >-			r = 0;
> >+			r = 1;
> >  		} else if (!strcasecmp(argv[0], "clearbadblocks")) {
> >-			r = dust_clear_badblocks(dd);
> >+			r = dust_clear_badblocks(dd, result, maxlen, &sz);
> >  		} else if (!strcasecmp(argv[0], "quiet")) {
> >  			if (!dd->quiet_mode)
> >  				dd->quiet_mode = true;
> >@@ -441,7 +446,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv,
> >  		else if (!strcasecmp(argv[0], "removebadblock"))
> >  			r = dust_remove_block(dd, block);
> >  		else if (!strcasecmp(argv[0], "queryblock"))
> >-			r = dust_query_block(dd, block);
> >+			r = dust_query_block(dd, block, result, maxlen, &sz);
> >  		else
> >  			invalid_msg = true;
> >
> 

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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-06-28 15:08 UTC | newest]

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2020-06-19 21:10 [PATCH v4 1/4] dm dust: report some message results back to user directly Bryan Gurney
2020-06-20  0:55 ` yangerkun
2020-06-28  1:08 ` yangerkun
2020-06-28 15:08   ` Mike Snitzer

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