Add counters to be updated by the balloon drivers. Print balloon stats when logging kernel memory usage.
https://jira.sw.ru/browse/PSBM-142436 Signed-off-by: Alexander Atanasov <alexander.atana...@virtuozzo.com> --- include/linux/balloon_compaction.h | 6 ++++++ lib/show_mem.c | 8 ++++++++ mm/balloon_compaction.c | 15 +++++++++++++++ 3 files changed, 29 insertions(+) diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h index 338aa27e4773..04c7a5c1dedd 100644 --- a/include/linux/balloon_compaction.h +++ b/include/linux/balloon_compaction.h @@ -207,4 +207,10 @@ static inline struct page *balloon_page_pop(struct list_head *pages) list_del(&page->lru); return page; } + +extern atomic_long_t mem_balloon_inflated_total_kb; +extern atomic_long_t mem_balloon_inflated_free_kb; +void balloon_set_inflated_total(long inflated_kb); +void balloon_set_inflated_free(long inflated_kb); + #endif /* _LINUX_BALLOON_COMPACTION_H */ diff --git a/lib/show_mem.c b/lib/show_mem.c index 1c26c14ffbb9..dee20eb0ee6d 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -7,6 +7,9 @@ #include <linux/mm.h> #include <linux/cma.h> +#ifdef CONFIG_MEMORY_BALLOON +#include <linux/balloon_compaction.h> +#endif void show_mem(unsigned int filter, nodemask_t *nodemask) { @@ -41,4 +44,9 @@ void show_mem(unsigned int filter, nodemask_t *nodemask) #ifdef CONFIG_MEMORY_FAILURE printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages)); #endif +#ifdef CONFIG_MEMORY_BALLOON + printk("Balloon InflatedTotal:%ldkB InflatedFree:%ldkB\n", + atomic_long_read(&mem_balloon_inflated_total_kb), + atomic_long_read(&mem_balloon_inflated_free_kb)); +#endif } diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index 907fefde2572..bb6b706ffca1 100644 --- a/mm/balloon_compaction.c +++ b/mm/balloon_compaction.c @@ -257,4 +257,19 @@ const struct address_space_operations balloon_aops = { }; EXPORT_SYMBOL_GPL(balloon_aops); +atomic_long_t mem_balloon_inflated_total_kb = ATOMIC_LONG_INIT(0); +atomic_long_t mem_balloon_inflated_free_kb = ATOMIC_LONG_INIT(0); + +void balloon_set_inflated_total(long inflated_kb) +{ + atomic_long_set(&mem_balloon_inflated_total_kb, inflated_kb); +} +EXPORT_SYMBOL(balloon_set_inflated_total); + +void balloon_set_inflated_free(long inflated_kb) +{ + atomic_long_set(&mem_balloon_inflated_free_kb, inflated_kb); +} +EXPORT_SYMBOL(balloon_set_inflated_free); + #endif /* CONFIG_BALLOON_COMPACTION */ -- 2.31.1 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
