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| author | Peter Zijlstra <peterz@infradead.org> | 2022-09-29 12:20:50 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-29 12:20:50 +0200 |
| commit | a1ebcd59430236b336428bbf8e1da16fb87d56e4 (patch) | |
| tree | 126b999f1eae9b7ecf1045eec425a6dbcdcb4351 /include/linux/memcontrol.h | |
| parent | cce6a2d7e0e494c453ad73e1e78bd50684f20cca (diff) | |
| parent | f76349cf41451c5c42a99f18a9163377e4b364ff (diff) | |
Merge branch 'v6.0-rc7'
Merge upstream to get RAPTORLAKE_S
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'include/linux/memcontrol.h')
| -rw-r--r-- | include/linux/memcontrol.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 4d31ce55b1c0..6257867fbf95 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -987,19 +987,30 @@ static inline void mod_memcg_page_state(struct page *page, static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) { - return READ_ONCE(memcg->vmstats.state[idx]); + long x = READ_ONCE(memcg->vmstats.state[idx]); +#ifdef CONFIG_SMP + if (x < 0) + x = 0; +#endif + return x; } static inline unsigned long lruvec_page_state(struct lruvec *lruvec, enum node_stat_item idx) { struct mem_cgroup_per_node *pn; + long x; if (mem_cgroup_disabled()) return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - return READ_ONCE(pn->lruvec_stats.state[idx]); + x = READ_ONCE(pn->lruvec_stats.state[idx]); +#ifdef CONFIG_SMP + if (x < 0) + x = 0; +#endif + return x; } static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, |