+ zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch added to mm-unstable branch

+ zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix
has been added to the -mm mm-unstable branch.  Its filename is
     zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Nhat Pham <nphamcs@gmail.com>
Subject: zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix
Date: Tue, 30 Jul 2024 15:47:16 -0700

I put the referenced bit documentation in the wrong order. Fix this.

Link: https://lkml.kernel.org/r/20240730224716.2392068-1-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/zswap.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/mm/zswap.c~zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix
+++ a/mm/zswap.c
@@ -184,13 +184,13 @@ static struct shrinker *zswap_shrinker;
  * page within zswap.
  *
  * swpentry - associated swap entry, the offset indexes into the red-black tree
+ * length - the length in bytes of the compressed page data.  Needed during
+ *          decompression. For a same value filled page length is 0, and both
+ *          pool and lru are invalid and must be ignored.
  * referenced - true if the entry recently entered the zswap pool. Unset by the
  *              dynamic shrinker. The entry is only reclaimed by the dynamic
  *              shrinker if referenced is unset. See comments in the shrinker
  *              section for context.
- * length - the length in bytes of the compressed page data.  Needed during
- *          decompression. For a same value filled page length is 0, and both
- *          pool and lru are invalid and must be ignored.
  * pool - the zswap_pool the entry's data is in
  * handle - zpool allocation handle that stores the compressed page data
  * value - value of the same-value filled pages which have same content
_

Patches currently in -mm which might be from nphamcs@gmail.com are

zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker.patch
zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch
zswap-increment-swapin-count-for-non-pivot-swapped-in-pages.patch

+ zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: zswap: implement a second chance algorithm for dynamic zswap shrinker (fix)
has been added to the -mm mm-unstable branch.  Its filename is
     zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Nhat Pham <nphamcs@gmail.com>
Subject: zswap: implement a second chance algorithm for dynamic zswap shrinker (fix)
Date: Mon, 5 Aug 2024 17:34:03 -0700

Fix a small mistake in the referenced bit documentation.

Link: https://lkml.kernel.org/r/20240806003403.3142387-1-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Yosry Ahmed <yosryahmed@google.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Takero Funaki <flintglass@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/zswap.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/zswap.c~zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix
+++ a/mm/zswap.c
@@ -188,8 +188,8 @@ static struct shrinker *zswap_shrinker;
  *          decompression. For a same value filled page length is 0, and both
  *          pool and lru are invalid and must be ignored.
  * referenced - true if the entry recently entered the zswap pool. Unset by the
- *              dynamic shrinker. The entry is only reclaimed by the dynamic
- *              shrinker if referenced is unset. See comments in the shrinker
+ *              writeback logic. The entry is only reclaimed by the writeback
+ *              logic if referenced is unset. See comments in the shrinker
  *              section for context.
  * pool - the zswap_pool the entry's data is in
  * handle - zpool allocation handle that stores the compressed page data
_

Patches currently in -mm which might be from nphamcs@gmail.com are

zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker.patch
zswap-implement-a-second-chance-algorithm-for-dynamic-zswap-shrinker-fix.patch
zswap-track-swapins-from-disk-more-accurately.patch
zswap-track-swapins-from-disk-more-accurately-fix.patch