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authorAndrew Morton <akpm@linux-foundation.org>2026-05-28 14:35:22 -0700
committerAndrew Morton <akpm@linux-foundation.org>2026-05-28 21:31:08 -0700
commit3efa15243a5f7aa5d002642efc819f6219d1c66e (patch)
treef46b08540fcefb2bbe9b6e56e59b4489d31bc01e /include
parent9b1395104a065c20f777b06c497a527a078b9044 (diff)
downloadlinux-next-history-3efa15243a5f7aa5d002642efc819f6219d1c66e.tar.gz
memcgv1: don't compile swap functions when CONFIG_SWAP=n
Stub these out to save some dead code and to fix a build error with the upcoming "mm/memcg, swap: store cgroup id in cluster table directly". Link: https://lore.kernel.org/202605281711.bSeZlErK-lkp@intel.com Cc: David Hildenbrand <david@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kairui Song <kasong@tencent.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeel.butt@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/memcontrol.h15
1 files changed, 10 insertions, 5 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index bf1a6e131ecaa..8f2662db166b4 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1900,9 +1900,6 @@ static inline void mem_cgroup_exit_user_fault(void)
current->in_user_fault = 0;
}
-void __memcg1_swapout(struct folio *folio, struct swap_cluster_info *ci);
-void memcg1_swapin(struct folio *folio);
-
#else /* CONFIG_MEMCG_V1 */
static inline
unsigned long memcg1_soft_limit_reclaim(pg_data_t *pgdat, int order,
@@ -1930,6 +1927,15 @@ static inline void mem_cgroup_exit_user_fault(void)
{
}
+#endif /* CONFIG_MEMCG_V1 */
+
+#if defined(CONFIG_MEMCG_V1) && defined(CONFIG_SWAP)
+
+void __memcg1_swapout(struct folio *folio, struct swap_cluster_info *ci);
+void memcg1_swapin(struct folio *folio);
+
+#else
+
static inline void __memcg1_swapout(struct folio *folio,
struct swap_cluster_info *ci)
{
@@ -1938,7 +1944,6 @@ static inline void __memcg1_swapout(struct folio *folio,
static inline void memcg1_swapin(struct folio *folio)
{
}
-
-#endif /* CONFIG_MEMCG_V1 */
+#endif
#endif /* _LINUX_MEMCONTROL_H */