diff options
Diffstat (limited to 'mm')
-rw-r--r-- | mm/khugepaged.c | 13 | ||||
-rw-r--r-- | mm/page_alloc.c | 3 |
2 files changed, 14 insertions, 2 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 897cded7d0c0..753b0e2fef36 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -50,6 +50,9 @@ enum scan_result { #define CREATE_TRACE_POINTS #include <trace/events/huge_memory.h> +static struct task_struct *khugepaged_thread __read_mostly; +static DEFINE_MUTEX(khugepaged_mutex); + /* default scan 8*512 pte (or vmas) every 30 second */ static unsigned int khugepaged_pages_to_scan __read_mostly; static unsigned int khugepaged_pages_collapsed; @@ -1948,8 +1951,6 @@ static void set_recommended_min_free_kbytes(void) int start_stop_khugepaged(void) { - static struct task_struct *khugepaged_thread __read_mostly; - static DEFINE_MUTEX(khugepaged_mutex); int err = 0; mutex_lock(&khugepaged_mutex); @@ -1976,3 +1977,11 @@ fail: mutex_unlock(&khugepaged_mutex); return err; } + +void khugepaged_min_free_kbytes_update(void) +{ + mutex_lock(&khugepaged_mutex); + if (khugepaged_enabled() && khugepaged_thread) + set_recommended_min_free_kbytes(); + mutex_unlock(&khugepaged_mutex); +} diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 458523bc7391..b0c451e3b59f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -64,6 +64,7 @@ #include <linux/page_owner.h> #include <linux/kthread.h> #include <linux/memcontrol.h> +#include <linux/khugepaged.h> #include <asm/sections.h> #include <asm/tlbflush.h> @@ -6785,6 +6786,8 @@ int __meminit init_per_zone_wmark_min(void) setup_min_slab_ratio(); #endif + khugepaged_min_free_kbytes_update(); + return 0; } postcore_initcall(init_per_zone_wmark_min) |