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mm: multi-gen LRU: section for memcg LRU

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Move memcg LRU code into a dedicated section.  Improve the design doc to
outline its architecture.

Link: https://lkml.kernel.org/r/20230118001827.1040870-5-talumbau@google.com
Signed-off-by: T.J. Alumbaugh <talumbau@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
T.J. Alumbaugh
2023-01-18 00:18:24 +00:00
committed by Andrew Morton
parent ccbbbb8594
commit 36c7b4db7c
5 changed files with 178 additions and 143 deletions
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17
include/linux/mm_inline.h
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@@ -122,18 +122,6 @@ static inline bool lru_gen_in_fault(void)
return current->in_lru_fault;
}
#ifdef CONFIG_MEMCG
static inline int lru_gen_memcg_seg(struct lruvec *lruvec)
{
return READ_ONCE(lruvec->lrugen.seg);
}
#else
static inline int lru_gen_memcg_seg(struct lruvec *lruvec)
{
return 0;
}
#endif
static inline int lru_gen_from_seq(unsigned long seq)
{
return seq % MAX_NR_GENS;
@@ -309,11 +297,6 @@ static inline bool lru_gen_in_fault(void)
return false;
}
static inline int lru_gen_memcg_seg(struct lruvec *lruvec)
{
return 0;
}
static inline bool lru_gen_add_folio(struct lruvec *lruvec, struct folio *folio, bool reclaiming)
{
return false;