diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmscan.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index f713e9f6ac7..548e023c193 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -33,6 +33,7 @@ #include <linux/cpuset.h> #include <linux/notifier.h> #include <linux/rwsem.h> +#include <linux/delay.h> #include <asm/tlbflush.h> #include <asm/div64.h> @@ -1784,11 +1785,13 @@ unsigned long shrink_all_memory(unsigned long nr_pages) pg_data_t *pgdat; unsigned long nr_to_free = nr_pages; unsigned long ret = 0; + unsigned retry = 2; struct reclaim_state reclaim_state = { .reclaimed_slab = 0, }; current->reclaim_state = &reclaim_state; +repeat: for_each_pgdat(pgdat) { unsigned long freed; @@ -1798,6 +1801,10 @@ unsigned long shrink_all_memory(unsigned long nr_pages) if ((long)nr_to_free <= 0) break; } + if (retry-- && ret < nr_pages) { + blk_congestion_wait(WRITE, HZ/5); + goto repeat; + } current->reclaim_state = NULL; return ret; } |