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| author | Johannes Weiner <hannes@cmpxchg.org> | 2025-01-24 00:41:32 -0500 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-16 22:05:55 -0700 |
| commit | 89ce924f0bd447eb52a5f224d879dbf8f09451db (patch) | |
| tree | 6e4246094003e696397614905f9f93f44194f8c0 /include/linux/swap.h | |
| parent | 0d892bbbfa1c3b75569ef5075503bb785d1d52fd (diff) | |
| download | lwn-89ce924f0bd447eb52a5f224d879dbf8f09451db.tar.gz lwn-89ce924f0bd447eb52a5f224d879dbf8f09451db.zip | |
mm: memcontrol: move memsw charge callbacks to v1
The interweaving of two entirely different swap accounting strategies has
been one of the more confusing parts of the memcg code. Split out the v1
code to clarify the implementation and a handful of callsites, and to
avoid building the v1 bits when !CONFIG_MEMCG_V1.
text data bss dec hex filename
39253 6446 4160 49859 c2c3 mm/memcontrol.o.old
38877 6382 4160 49419 c10b mm/memcontrol.o
Link: https://lkml.kernel.org/r/20250124054132.45643-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index b13b72645db3..91b30701274e 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -659,7 +659,6 @@ static inline void folio_throttle_swaprate(struct folio *folio, gfp_t gfp) #endif #if defined(CONFIG_MEMCG) && defined(CONFIG_SWAP) -void mem_cgroup_swapout(struct folio *folio, swp_entry_t entry); int __mem_cgroup_try_charge_swap(struct folio *folio, swp_entry_t entry); static inline int mem_cgroup_try_charge_swap(struct folio *folio, swp_entry_t entry) @@ -680,10 +679,6 @@ static inline void mem_cgroup_uncharge_swap(swp_entry_t entry, unsigned int nr_p extern long mem_cgroup_get_nr_swap_pages(struct mem_cgroup *memcg); extern bool mem_cgroup_swap_full(struct folio *folio); #else -static inline void mem_cgroup_swapout(struct folio *folio, swp_entry_t entry) -{ -} - static inline int mem_cgroup_try_charge_swap(struct folio *folio, swp_entry_t entry) { |