[PATCH] mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages

Sun YangKai posted 1 patch 9 months, 3 weeks ago
There is a newer version of this series
mm/zswap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
Posted by Sun YangKai 9 months, 3 weeks ago
This is currently the only atomic_long_t variable initialized by
ATOMIC_INIT macro found in the kernel by using
`grep -r atomic_long_t | grep ATOMIC_INIT`

This was introduced in 6e1fa55, in which we modified
the type of zswap_stored_pages to atomic_long_t,
but didn't change the initialization.

Fixes: 6e1fa55 ("mm: zswap: modify zswap_stored_pages to be atomic_long_t")
Signed-off-by: Sun YangKai <sunk67188@gmail.com>
---
 mm/zswap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index ac9d299e7d0c..23365e76a3ce 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -43,7 +43,7 @@
 * statistics
 **********************************/
 /* The number of compressed pages currently stored in zswap */
-atomic_long_t zswap_stored_pages = ATOMIC_INIT(0);
+atomic_long_t zswap_stored_pages = ATOMIC_LONG_INIT(0);
 
 /*
  * The statistics below are not protected from concurrent access for
-- 
2.48.1
Re: [PATCH] mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
Posted by Yosry Ahmed 9 months, 3 weeks ago
On Wed, Feb 26, 2025 at 08:41:39PM +0800, Sun YangKai wrote:
> This is currently the only atomic_long_t variable initialized by
> ATOMIC_INIT macro found in the kernel by using
> `grep -r atomic_long_t | grep ATOMIC_INIT`
> 
> This was introduced in 6e1fa55, in which we modified

We use the first 12 characters in the SHA1 to minimize collisions (same
in 'Fixes' below), so both should be 6e1fa555ec77.

> the type of zswap_stored_pages to atomic_long_t,
> but didn't change the initialization.
> 
> Fixes: 6e1fa55 ("mm: zswap: modify zswap_stored_pages to be atomic_long_t")
> Signed-off-by: Sun YangKai <sunk67188@gmail.com>

Acked-by: Yosry Ahmed <yosry.ahmed@linux.dev>

> ---
>  mm/zswap.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/zswap.c b/mm/zswap.c
> index ac9d299e7d0c..23365e76a3ce 100644
> --- a/mm/zswap.c
> +++ b/mm/zswap.c
> @@ -43,7 +43,7 @@
>  * statistics
>  **********************************/
>  /* The number of compressed pages currently stored in zswap */
> -atomic_long_t zswap_stored_pages = ATOMIC_INIT(0);
> +atomic_long_t zswap_stored_pages = ATOMIC_LONG_INIT(0);
>  
>  /*
>   * The statistics below are not protected from concurrent access for
> -- 
> 2.48.1
>
[PATCH] mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
Posted by Sun YangKai 9 months, 3 weeks ago
This is currently the only atomic_long_t variable initialized by
ATOMIC_INIT macro found in the kernel by using
`grep -r atomic_long_t | grep ATOMIC_INIT`

This was introduced in 6e1fa555ec77, in which we modified
the type of zswap_stored_pages to atomic_long_t,
but didn't change the initialization.

Fixes: 6e1fa555ec77 ("mm: zswap: modify zswap_stored_pages to be atomic_long_t")
Signed-off-by: Sun YangKai <sunk67188@gmail.com>
---
 mm/zswap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index ac9d299e7d0c..23365e76a3ce 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -43,7 +43,7 @@
 * statistics
 **********************************/
 /* The number of compressed pages currently stored in zswap */
-atomic_long_t zswap_stored_pages = ATOMIC_INIT(0);
+atomic_long_t zswap_stored_pages = ATOMIC_LONG_INIT(0);
 
 /*
  * The statistics below are not protected from concurrent access for
-- 
2.48.1
Re: [PATCH] mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
Posted by David Hildenbrand 9 months, 3 weeks ago
On 26.02.25 16:32, Sun YangKai wrote:

Something for the future: if you send a v2, indicate that in the patch 
subject ("[PATCH v2]") and ideally, describe the change since v1 under 
the "---", and don't send it as reply to the original patch.


> This is currently the only atomic_long_t variable initialized by
> ATOMIC_INIT macro found in the kernel by using
> `grep -r atomic_long_t | grep ATOMIC_INIT`
> 
> This was introduced in 6e1fa555ec77, in which we modified

the correct way to reference to commits ids even in text is the format 
you use below.

But here it's sufficient to not be repetitive and simply say

"We changed the type of zswap_stored_pages to be an atomic_long_t, but 
didn't change the initialization."

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

> the type of zswap_stored_pages to atomic_long_t,
> but didn't change the initialization.
> 
> Fixes: 6e1fa555ec77 ("mm: zswap: modify zswap_stored_pages to be atomic_long_t")
> Signed-off-by: Sun YangKai <sunk67188@gmail.com>
> ---
>   mm/zswap.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/zswap.c b/mm/zswap.c
> index ac9d299e7d0c..23365e76a3ce 100644
> --- a/mm/zswap.c
> +++ b/mm/zswap.c
> @@ -43,7 +43,7 @@
>   * statistics
>   **********************************/
>   /* The number of compressed pages currently stored in zswap */
> -atomic_long_t zswap_stored_pages = ATOMIC_INIT(0);
> +atomic_long_t zswap_stored_pages = ATOMIC_LONG_INIT(0);
>   
>   /*
>    * The statistics below are not protected from concurrent access for


-- 
Cheers,

David / dhildenb