The patch titled
Subject: mm: swap: remove unneeded cgroup_throttle_swaprate()
has been added to the -mm mm-unstable branch. Its filename is
mm-swap-remove-unneeded-cgroup_throttle_swaprate.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-swap-remove-unneeded-cgroup_throttle_swaprate.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: swap: remove unneeded cgroup_throttle_swaprate()
Date: Thu, 2 Mar 2023 19:58:35 +0800
All the callers of cgroup_throttle_swaprate() are converted to
folio_throttle_swaprate(), so make __cgroup_throttle_swaprate() to take a
folio, and rename it to __folio_throttle_swaprate(), also rename gfp_mask
to gfp and drop redundant extern keyword. finally, drop unused
cgroup_throttle_swaprate().
Link: https://lkml.kernel.org/r/20230302115835.105364-8-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/include/linux/swap.h~mm-swap-remove-unneeded-cgroup_throttle_swaprate
+++ a/include/linux/swap.h
@@ -641,22 +641,18 @@ extern atomic_t zswap_stored_pages;
#endif
#if defined(CONFIG_SWAP) && defined(CONFIG_MEMCG) && defined(CONFIG_BLK_CGROUP)
-extern void __cgroup_throttle_swaprate(struct page *page, gfp_t gfp_mask);
-static inline void cgroup_throttle_swaprate(struct page *page, gfp_t gfp_mask)
+void __folio_throttle_swaprate(struct folio *folio, gfp_t gfp);
+static inline void folio_throttle_swaprate(struct folio *folio, gfp_t gfp)
{
if (mem_cgroup_disabled())
return;
- __cgroup_throttle_swaprate(page, gfp_mask);
+ __folio_throttle_swaprate(folio, gfp);
}
#else
-static inline void cgroup_throttle_swaprate(struct page *page, gfp_t gfp_mask)
-{
-}
-#endif
static inline void folio_throttle_swaprate(struct folio *folio, gfp_t gfp)
{
- cgroup_throttle_swaprate(&folio->page, gfp);
}
+#endif
#if defined(CONFIG_MEMCG) && defined(CONFIG_SWAP)
void mem_cgroup_swapout(struct folio *folio, swp_entry_t entry);
--- a/mm/swapfile.c~mm-swap-remove-unneeded-cgroup_throttle_swaprate
+++ a/mm/swapfile.c
@@ -3635,12 +3635,12 @@ static void free_swap_count_continuation
}
#if defined(CONFIG_MEMCG) && defined(CONFIG_BLK_CGROUP)
-void __cgroup_throttle_swaprate(struct page *page, gfp_t gfp_mask)
+void __folio_throttle_swaprate(struct folio *folio, gfp_t gfp)
{
struct swap_info_struct *si, *next;
- int nid = page_to_nid(page);
+ int nid = folio_nid(folio);
- if (!(gfp_mask & __GFP_IO))
+ if (!(gfp & __GFP_IO))
return;
if (!blk_cgroup_congested())
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-huge_memory-convert-__do_huge_pmd_anonymous_page-to-use-a-folio.patch
mm-memory-use-folio_throttle_swaprate-in-do_swap_page.patch
mm-memory-use-folio_throttle_swaprate-in-page_copy_prealloc.patch
mm-memory-use-folio_throttle_swaprate-in-wp_page_copy.patch
mm-memory-use-folio_throttle_swaprate-in-do_anonymous_page.patch
mm-memory-use-folio_throttle_swaprate-in-do_cow_fault.patch
mm-swap-remove-unneeded-cgroup_throttle_swaprate.patch
