diff mbox series

[4.19.y,2/2] mm: hide incomplete nr_indirectly_reclaimable in sysfs

Message ID 155482954368.2823.12386748649541618609.stgit@buzz (mailing list archive)
State New, archived
Headers show
Series [4.19.y,1/2] mm: hide incomplete nr_indirectly_reclaimable in /proc/zoneinfo | expand

Commit Message

Konstantin Khlebnikov April 9, 2019, 5:05 p.m. UTC
This fixes /sys/devices/system/node/node*/vmstat format:

...
nr_dirtied 6613155
nr_written 5796802
 11089216
...

In upstream branch this fixed by commit b29940c1abd7 ("mm: rename and
change semantics of nr_indirectly_reclaimable_bytes").

Cc: <stable@vger.kernel.org> # 4.19.y
Fixes: 7aaf77272358 ("mm: don't show nr_indirectly_reclaimable in /proc/vmstat")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
---
 drivers/base/node.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Vlastimil Babka April 9, 2019, 6:22 p.m. UTC | #1
On 4/9/19 7:05 PM, Konstantin Khlebnikov wrote:
> This fixes /sys/devices/system/node/node*/vmstat format:
> 
> ...
> nr_dirtied 6613155
> nr_written 5796802
>  11089216
> ...
> 
> In upstream branch this fixed by commit b29940c1abd7 ("mm: rename and
> change semantics of nr_indirectly_reclaimable_bytes").
> 
> Cc: <stable@vger.kernel.org> # 4.19.y

So given the same circumstances as patch 1/2, shouldn't this also
include 4.14.y ?

> Fixes: 7aaf77272358 ("mm: don't show nr_indirectly_reclaimable in /proc/vmstat")
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
> Cc: Roman Gushchin <guro@fb.com>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> ---
>  drivers/base/node.c |    7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/base/node.c b/drivers/base/node.c
> index 1ac4c36e13bb..c3968e2d0a98 100644
> --- a/drivers/base/node.c
> +++ b/drivers/base/node.c
> @@ -197,11 +197,16 @@ static ssize_t node_read_vmstat(struct device *dev,
>  			     sum_zone_numa_state(nid, i));
>  #endif
>  
> -	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++)
> +	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++) {
> +		/* Skip hidden vmstat items. */
> +		if (*vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
> +				 NR_VM_NUMA_STAT_ITEMS] == '\0')
> +			continue;
>  		n += sprintf(buf+n, "%s %lu\n",
>  			     vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
>  			     NR_VM_NUMA_STAT_ITEMS],
>  			     node_page_state(pgdat, i));
> +	}
>  
>  	return n;
>  }
>
Konstantin Khlebnikov April 9, 2019, 6:47 p.m. UTC | #2
On 09.04.2019 21:22, Vlastimil Babka wrote:
> On 4/9/19 7:05 PM, Konstantin Khlebnikov wrote:
>> This fixes /sys/devices/system/node/node*/vmstat format:
>>
>> ...
>> nr_dirtied 6613155
>> nr_written 5796802
>>   11089216
>> ...
>>
>> In upstream branch this fixed by commit b29940c1abd7 ("mm: rename and
>> change semantics of nr_indirectly_reclaimable_bytes").
>>
>> Cc: <stable@vger.kernel.org> # 4.19.y
> 
> So given the same circumstances as patch 1/2, shouldn't this also
> include 4.14.y ?

Oh, yes. Second patch should be applied for 4.14.y too.

> 
>> Fixes: 7aaf77272358 ("mm: don't show nr_indirectly_reclaimable in /proc/vmstat")
>> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
>> Cc: Roman Gushchin <guro@fb.com>
>> Cc: Vlastimil Babka <vbabka@suse.cz>
>> ---
>>   drivers/base/node.c |    7 ++++++-
>>   1 file changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/base/node.c b/drivers/base/node.c
>> index 1ac4c36e13bb..c3968e2d0a98 100644
>> --- a/drivers/base/node.c
>> +++ b/drivers/base/node.c
>> @@ -197,11 +197,16 @@ static ssize_t node_read_vmstat(struct device *dev,
>>   			     sum_zone_numa_state(nid, i));
>>   #endif
>>   
>> -	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++)
>> +	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++) {
>> +		/* Skip hidden vmstat items. */
>> +		if (*vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
>> +				 NR_VM_NUMA_STAT_ITEMS] == '\0')
>> +			continue;
>>   		n += sprintf(buf+n, "%s %lu\n",
>>   			     vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
>>   			     NR_VM_NUMA_STAT_ITEMS],
>>   			     node_page_state(pgdat, i));
>> +	}
>>   
>>   	return n;
>>   }
>>
>
Greg KH April 18, 2019, 3:58 p.m. UTC | #3
On Tue, Apr 09, 2019 at 08:05:43PM +0300, Konstantin Khlebnikov wrote:
> This fixes /sys/devices/system/node/node*/vmstat format:
> 
> ...
> nr_dirtied 6613155
> nr_written 5796802
>  11089216
> ...
> 
> In upstream branch this fixed by commit b29940c1abd7 ("mm: rename and
> change semantics of nr_indirectly_reclaimable_bytes").

We are running at almost 100% for the times we add a patch to the tree
that is not in Linus's tree, for a fixup being needed for it
after-the-fact.

{sigh}

Now queued up, thanks.

greg k-h
diff mbox series

Patch

diff --git a/drivers/base/node.c b/drivers/base/node.c
index 1ac4c36e13bb..c3968e2d0a98 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -197,11 +197,16 @@  static ssize_t node_read_vmstat(struct device *dev,
 			     sum_zone_numa_state(nid, i));
 #endif
 
-	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++)
+	for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++) {
+		/* Skip hidden vmstat items. */
+		if (*vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
+				 NR_VM_NUMA_STAT_ITEMS] == '\0')
+			continue;
 		n += sprintf(buf+n, "%s %lu\n",
 			     vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
 			     NR_VM_NUMA_STAT_ITEMS],
 			     node_page_state(pgdat, i));
+	}
 
 	return n;
 }