[PATCH 0/3] Remove __online_page_set_limits()

[PATCH 0/3] Remove __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this can be avoided.

As both of the callers are now removed, __online_page_set_limits()
can be removed permanently.

Souptick Joarder (3):
  hv_ballon: Avoid calling dummy function __online_page_set_limits()
  xen/ballon: Avoid calling dummy function __online_page_set_limits()
  mm/memory_hotplug.c: Remove __online_page_set_limits()

 drivers/hv/hv_balloon.c        | 1 -
 drivers/xen/balloon.c          | 1 -
 include/linux/memory_hotplug.h | 1 -
 mm/memory_hotplug.c            | 5 -----
 4 files changed, 8 deletions(-)

-- 
1.9.1

[Xen-devel] [PATCH 0/3] Remove __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this can be avoided.

As both of the callers are now removed, __online_page_set_limits()
can be removed permanently.

Souptick Joarder (3):
  hv_ballon: Avoid calling dummy function __online_page_set_limits()
  xen/ballon: Avoid calling dummy function __online_page_set_limits()
  mm/memory_hotplug.c: Remove __online_page_set_limits()

 drivers/hv/hv_balloon.c        | 1 -
 drivers/xen/balloon.c          | 1 -
 include/linux/memory_hotplug.h | 1 -
 mm/memory_hotplug.c            | 5 -----
 4 files changed, 8 deletions(-)

-- 
1.9.1


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[PATCH 1/3] hv_ballon: Avoid calling dummy function __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this function can be avoided.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 drivers/hv/hv_balloon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 6fb4ea5..9bab443 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -680,7 +680,6 @@ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
 		__ClearPageOffline(pg);
 
 	/* This frame is currently backed; online the page. */
-	__online_page_set_limits(pg);
 	__online_page_increment_counters(pg);
 	__online_page_free(pg);
 
-- 
1.9.1

[Xen-devel] [PATCH 1/3] hv_ballon: Avoid calling dummy function __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this function can be avoided.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 drivers/hv/hv_balloon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 6fb4ea5..9bab443 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -680,7 +680,6 @@ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
 		__ClearPageOffline(pg);
 
 	/* This frame is currently backed; online the page. */
-	__online_page_set_limits(pg);
 	__online_page_increment_counters(pg);
 	__online_page_free(pg);
 
-- 
1.9.1


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Re: [PATCH 1/3] hv_ballon: Avoid calling dummy function __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  drivers/hv/hv_balloon.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
> index 6fb4ea5..9bab443 100644
> --- a/drivers/hv/hv_balloon.c
> +++ b/drivers/hv/hv_balloon.c
> @@ -680,7 +680,6 @@ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
>  		__ClearPageOffline(pg);
>  
>  	/* This frame is currently backed; online the page. */
> -	__online_page_set_limits(pg);
>  	__online_page_increment_counters(pg);
>  	__online_page_free(pg);
>  
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

Re: [Xen-devel] [PATCH 1/3] hv_ballon: Avoid calling dummy function __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  drivers/hv/hv_balloon.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
> index 6fb4ea5..9bab443 100644
> --- a/drivers/hv/hv_balloon.c
> +++ b/drivers/hv/hv_balloon.c
> @@ -680,7 +680,6 @@ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
>  		__ClearPageOffline(pg);
>  
>  	/* This frame is currently backed; online the page. */
> -	__online_page_set_limits(pg);
>  	__online_page_increment_counters(pg);
>  	__online_page_free(pg);
>  
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

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https://lists.xenproject.org/mailman/listinfo/xen-devel

[PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this function can be avoided.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 drivers/xen/balloon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 4e11de6..05b1f7e 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -376,7 +376,6 @@ static void xen_online_page(struct page *page, unsigned int order)
 	mutex_lock(&balloon_mutex);
 	for (i = 0; i < size; i++) {
 		p = pfn_to_page(start_pfn + i);
-		__online_page_set_limits(p);
 		__SetPageOffline(p);
 		__balloon_append(p);
 	}
-- 
1.9.1

[Xen-devel] [PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[Souptick Joarder]

__online_page_set_limits() is a dummy function and an extra call
to this function can be avoided.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 drivers/xen/balloon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 4e11de6..05b1f7e 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -376,7 +376,6 @@ static void xen_online_page(struct page *page, unsigned int order)
 	mutex_lock(&balloon_mutex);
 	for (i = 0; i < size; i++) {
 		p = pfn_to_page(start_pfn + i);
-		__online_page_set_limits(p);
 		__SetPageOffline(p);
 		__balloon_append(p);
 	}
-- 
1.9.1


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Re: [PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[Juergen Gross]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen

Re: [Xen-devel] [PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[Juergen Gross]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen

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Re: [PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  drivers/xen/balloon.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
> index 4e11de6..05b1f7e 100644
> --- a/drivers/xen/balloon.c
> +++ b/drivers/xen/balloon.c
> @@ -376,7 +376,6 @@ static void xen_online_page(struct page *page, unsigned int order)
>  	mutex_lock(&balloon_mutex);
>  	for (i = 0; i < size; i++) {
>  		p = pfn_to_page(start_pfn + i);
> -		__online_page_set_limits(p);
>  		__SetPageOffline(p);
>  		__balloon_append(p);
>  	}
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

Re: [Xen-devel] [PATCH 2/3] xen/ballon: Avoid calling dummy function __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this function can be avoided.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  drivers/xen/balloon.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
> index 4e11de6..05b1f7e 100644
> --- a/drivers/xen/balloon.c
> +++ b/drivers/xen/balloon.c
> @@ -376,7 +376,6 @@ static void xen_online_page(struct page *page, unsigned int order)
>  	mutex_lock(&balloon_mutex);
>  	for (i = 0; i < size; i++) {
>  		p = pfn_to_page(start_pfn + i);
> -		__online_page_set_limits(p);
>  		__SetPageOffline(p);
>  		__balloon_append(p);
>  	}
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

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[PATCH 3/3] mm/memory_hotplug.c: Remove __online_page_set_limits()

[Souptick Joarder]

As both the callers of this dummy __online_page_set_limits()
is removed, this can be removed permanently.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 include/linux/memory_hotplug.h | 1 -
 mm/memory_hotplug.c            | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index f46ea71..8ee3a2a 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -105,7 +105,6 @@ extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
 extern int set_online_page_callback(online_page_callback_t callback);
 extern int restore_online_page_callback(online_page_callback_t callback);
 
-extern void __online_page_set_limits(struct page *page);
 extern void __online_page_increment_counters(struct page *page);
 extern void __online_page_free(struct page *page);
 
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index c73f099..dc0118f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -604,11 +604,6 @@ int restore_online_page_callback(online_page_callback_t callback)
 }
 EXPORT_SYMBOL_GPL(restore_online_page_callback);
 
-void __online_page_set_limits(struct page *page)
-{
-}
-EXPORT_SYMBOL_GPL(__online_page_set_limits);
-
 void __online_page_increment_counters(struct page *page)
 {
 	adjust_managed_page_count(page, 1);
-- 
1.9.1

[Xen-devel] [PATCH 3/3] mm/memory_hotplug.c: Remove __online_page_set_limits()

[Souptick Joarder]

As both the callers of this dummy __online_page_set_limits()
is removed, this can be removed permanently.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 include/linux/memory_hotplug.h | 1 -
 mm/memory_hotplug.c            | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index f46ea71..8ee3a2a 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -105,7 +105,6 @@ extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
 extern int set_online_page_callback(online_page_callback_t callback);
 extern int restore_online_page_callback(online_page_callback_t callback);
 
-extern void __online_page_set_limits(struct page *page);
 extern void __online_page_increment_counters(struct page *page);
 extern void __online_page_free(struct page *page);
 
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index c73f099..dc0118f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -604,11 +604,6 @@ int restore_online_page_callback(online_page_callback_t callback)
 }
 EXPORT_SYMBOL_GPL(restore_online_page_callback);
 
-void __online_page_set_limits(struct page *page)
-{
-}
-EXPORT_SYMBOL_GPL(__online_page_set_limits);
-
 void __online_page_increment_counters(struct page *page)
 {
 	adjust_managed_page_count(page, 1);
-- 
1.9.1


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Re: [PATCH 3/3] mm/memory_hotplug.c: Remove __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> As both the callers of this dummy __online_page_set_limits()
> is removed, this can be removed permanently.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  2 files changed, 6 deletions(-)
> 
> diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
> index f46ea71..8ee3a2a 100644
> --- a/include/linux/memory_hotplug.h
> +++ b/include/linux/memory_hotplug.h
> @@ -105,7 +105,6 @@ extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
>  extern int set_online_page_callback(online_page_callback_t callback);
>  extern int restore_online_page_callback(online_page_callback_t callback);
>  
> -extern void __online_page_set_limits(struct page *page);
>  extern void __online_page_increment_counters(struct page *page);
>  extern void __online_page_free(struct page *page);
>  
> diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
> index c73f099..dc0118f 100644
> --- a/mm/memory_hotplug.c
> +++ b/mm/memory_hotplug.c
> @@ -604,11 +604,6 @@ int restore_online_page_callback(online_page_callback_t callback)
>  }
>  EXPORT_SYMBOL_GPL(restore_online_page_callback);
>  
> -void __online_page_set_limits(struct page *page)
> -{
> -}
> -EXPORT_SYMBOL_GPL(__online_page_set_limits);
> -
>  void __online_page_increment_counters(struct page *page)
>  {
>  	adjust_managed_page_count(page, 1);
> 
Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

Re: [Xen-devel] [PATCH 3/3] mm/memory_hotplug.c: Remove __online_page_set_limits()

[David Hildenbrand]

On 07.09.19 23:47, Souptick Joarder wrote:
> As both the callers of this dummy __online_page_set_limits()
> is removed, this can be removed permanently.
> 
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> ---
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  2 files changed, 6 deletions(-)
> 
> diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
> index f46ea71..8ee3a2a 100644
> --- a/include/linux/memory_hotplug.h
> +++ b/include/linux/memory_hotplug.h
> @@ -105,7 +105,6 @@ extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
>  extern int set_online_page_callback(online_page_callback_t callback);
>  extern int restore_online_page_callback(online_page_callback_t callback);
>  
> -extern void __online_page_set_limits(struct page *page);
>  extern void __online_page_increment_counters(struct page *page);
>  extern void __online_page_free(struct page *page);
>  
> diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
> index c73f099..dc0118f 100644
> --- a/mm/memory_hotplug.c
> +++ b/mm/memory_hotplug.c
> @@ -604,11 +604,6 @@ int restore_online_page_callback(online_page_callback_t callback)
>  }
>  EXPORT_SYMBOL_GPL(restore_online_page_callback);
>  
> -void __online_page_set_limits(struct page *page)
> -{
> -}
> -EXPORT_SYMBOL_GPL(__online_page_set_limits);
> -
>  void __online_page_increment_counters(struct page *page)
>  {
>  	adjust_managed_page_count(page, 1);
> 
Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb

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Re: [PATCH 0/3] Remove __online_page_set_limits()

[Michal Hocko]

On Sun 08-09-19 03:17:01, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this can be avoided.
> 
> As both of the callers are now removed, __online_page_set_limits()
> can be removed permanently.
> 
> Souptick Joarder (3):
>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>   mm/memory_hotplug.c: Remove __online_page_set_limits()
> 
>  drivers/hv/hv_balloon.c        | 1 -
>  drivers/xen/balloon.c          | 1 -
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  4 files changed, 8 deletions(-)

To the whole series
Acked-by: Michal Hocko <mhocko@suse.com>

Thanks!
-- 
Michal Hocko
SUSE Labs

Re: [Xen-devel] [PATCH 0/3] Remove __online_page_set_limits()

[Michal Hocko]

On Sun 08-09-19 03:17:01, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this can be avoided.
> 
> As both of the callers are now removed, __online_page_set_limits()
> can be removed permanently.
> 
> Souptick Joarder (3):
>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>   mm/memory_hotplug.c: Remove __online_page_set_limits()
> 
>  drivers/hv/hv_balloon.c        | 1 -
>  drivers/xen/balloon.c          | 1 -
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  4 files changed, 8 deletions(-)

To the whole series
Acked-by: Michal Hocko <mhocko@suse.com>

Thanks!
-- 
Michal Hocko
SUSE Labs

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Re: [PATCH 0/3] Remove __online_page_set_limits()

[Kirill A. Shutemov]

On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this can be avoided.
> 
> As both of the callers are now removed, __online_page_set_limits()
> can be removed permanently.
> 
> Souptick Joarder (3):
>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>   mm/memory_hotplug.c: Remove __online_page_set_limits()
> 
>  drivers/hv/hv_balloon.c        | 1 -
>  drivers/xen/balloon.c          | 1 -
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  4 files changed, 8 deletions(-)

Do we really need 3 separate patches to remove 8 lines of code?

-- 
 Kirill A. Shutemov

Re: [Xen-devel] [PATCH 0/3] Remove __online_page_set_limits()

[Kirill A. Shutemov]

On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
> __online_page_set_limits() is a dummy function and an extra call
> to this can be avoided.
> 
> As both of the callers are now removed, __online_page_set_limits()
> can be removed permanently.
> 
> Souptick Joarder (3):
>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>   mm/memory_hotplug.c: Remove __online_page_set_limits()
> 
>  drivers/hv/hv_balloon.c        | 1 -
>  drivers/xen/balloon.c          | 1 -
>  include/linux/memory_hotplug.h | 1 -
>  mm/memory_hotplug.c            | 5 -----
>  4 files changed, 8 deletions(-)

Do we really need 3 separate patches to remove 8 lines of code?

-- 
 Kirill A. Shutemov

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Re: [PATCH 0/3] Remove __online_page_set_limits()

[Souptick Joarder]

On Mon, Sep 9, 2019 at 9:12 PM Kirill A. Shutemov <kirill@shutemov.name> wrote:
>
> On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
> > __online_page_set_limits() is a dummy function and an extra call
> > to this can be avoided.
> >
> > As both of the callers are now removed, __online_page_set_limits()
> > can be removed permanently.
> >
> > Souptick Joarder (3):
> >   hv_ballon: Avoid calling dummy function __online_page_set_limits()
> >   xen/ballon: Avoid calling dummy function __online_page_set_limits()
> >   mm/memory_hotplug.c: Remove __online_page_set_limits()
> >
> >  drivers/hv/hv_balloon.c        | 1 -
> >  drivers/xen/balloon.c          | 1 -
> >  include/linux/memory_hotplug.h | 1 -
> >  mm/memory_hotplug.c            | 5 -----
> >  4 files changed, 8 deletions(-)
>
> Do we really need 3 separate patches to remove 8 lines of code?

I prefer to split into series of 3 which looks more clean. But I am ok
with other option.
Would you like to merge into single one ?

Re: [Xen-devel] [PATCH 0/3] Remove __online_page_set_limits()

[Souptick Joarder]

On Mon, Sep 9, 2019 at 9:12 PM Kirill A. Shutemov <kirill@shutemov.name> wrote:
>
> On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
> > __online_page_set_limits() is a dummy function and an extra call
> > to this can be avoided.
> >
> > As both of the callers are now removed, __online_page_set_limits()
> > can be removed permanently.
> >
> > Souptick Joarder (3):
> >   hv_ballon: Avoid calling dummy function __online_page_set_limits()
> >   xen/ballon: Avoid calling dummy function __online_page_set_limits()
> >   mm/memory_hotplug.c: Remove __online_page_set_limits()
> >
> >  drivers/hv/hv_balloon.c        | 1 -
> >  drivers/xen/balloon.c          | 1 -
> >  include/linux/memory_hotplug.h | 1 -
> >  mm/memory_hotplug.c            | 5 -----
> >  4 files changed, 8 deletions(-)
>
> Do we really need 3 separate patches to remove 8 lines of code?

I prefer to split into series of 3 which looks more clean. But I am ok
with other option.
Would you like to merge into single one ?

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

Re: [PATCH 0/3] Remove __online_page_set_limits()

[Souptick Joarder]

On Mon, Sep 9, 2019 at 9:12 PM Kirill A. Shutemov <kirill@shutemov.name> wrote:
>
> On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
> > __online_page_set_limits() is a dummy function and an extra call
> > to this can be avoided.
> >
> > As both of the callers are now removed, __online_page_set_limits()
> > can be removed permanently.
> >
> > Souptick Joarder (3):
> >   hv_ballon: Avoid calling dummy function __online_page_set_limits()
> >   xen/ballon: Avoid calling dummy function __online_page_set_limits()
> >   mm/memory_hotplug.c: Remove __online_page_set_limits()
> >
> >  drivers/hv/hv_balloon.c        | 1 -
> >  drivers/xen/balloon.c          | 1 -
> >  include/linux/memory_hotplug.h | 1 -
> >  mm/memory_hotplug.c            | 5 -----
> >  4 files changed, 8 deletions(-)
>
> Do we really need 3 separate patches to remove 8 lines of code?

I prefer to split into series of 3 which looks more clean. But I am ok
with other option.
Would you like to merge into single one ?

Re: [PATCH 0/3] Remove __online_page_set_limits()

[David Hildenbrand]

On 10.09.19 14:56, Souptick Joarder wrote:
> On Mon, Sep 9, 2019 at 9:12 PM Kirill A. Shutemov <kirill@shutemov.name> wrote:
>>
>> On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
>>> __online_page_set_limits() is a dummy function and an extra call
>>> to this can be avoided.
>>>
>>> As both of the callers are now removed, __online_page_set_limits()
>>> can be removed permanently.
>>>
>>> Souptick Joarder (3):
>>>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>>>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>>>   mm/memory_hotplug.c: Remove __online_page_set_limits()
>>>
>>>  drivers/hv/hv_balloon.c        | 1 -
>>>  drivers/xen/balloon.c          | 1 -
>>>  include/linux/memory_hotplug.h | 1 -
>>>  mm/memory_hotplug.c            | 5 -----
>>>  4 files changed, 8 deletions(-)
>>
>> Do we really need 3 separate patches to remove 8 lines of code?
> 
> I prefer to split into series of 3 which looks more clean. But I am ok
> with other option.
> Would you like to merge into single one ?
> 

If you have to resend, you could squash them into one. If not, I think
this is okay ...

-- 

Thanks,

David / dhildenb

Re: [Xen-devel] [PATCH 0/3] Remove __online_page_set_limits()

[David Hildenbrand]

On 10.09.19 14:56, Souptick Joarder wrote:
> On Mon, Sep 9, 2019 at 9:12 PM Kirill A. Shutemov <kirill@shutemov.name> wrote:
>>
>> On Sun, Sep 08, 2019 at 03:17:01AM +0530, Souptick Joarder wrote:
>>> __online_page_set_limits() is a dummy function and an extra call
>>> to this can be avoided.
>>>
>>> As both of the callers are now removed, __online_page_set_limits()
>>> can be removed permanently.
>>>
>>> Souptick Joarder (3):
>>>   hv_ballon: Avoid calling dummy function __online_page_set_limits()
>>>   xen/ballon: Avoid calling dummy function __online_page_set_limits()
>>>   mm/memory_hotplug.c: Remove __online_page_set_limits()
>>>
>>>  drivers/hv/hv_balloon.c        | 1 -
>>>  drivers/xen/balloon.c          | 1 -
>>>  include/linux/memory_hotplug.h | 1 -
>>>  mm/memory_hotplug.c            | 5 -----
>>>  4 files changed, 8 deletions(-)
>>
>> Do we really need 3 separate patches to remove 8 lines of code?
> 
> I prefer to split into series of 3 which looks more clean. But I am ok
> with other option.
> Would you like to merge into single one ?
> 

If you have to resend, you could squash them into one. If not, I think
this is okay ...

-- 

Thanks,

David / dhildenb

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