Export nr_swap_files which would be used for initializing and destorying swap cgroup structures in the coming patch. Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx> CC: Glauber Costa <glommer@xxxxxxxxxxxxx> CC: Michal Hocko <mhocko@xxxxxxx> CC: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> CC: Johannes Weiner <hannes@xxxxxxxxxxx> CC: Mel Gorman <mgorman@xxxxxxx> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> CC: Sha Zhengju <handai.szj@xxxxxxxxxx> --- include/linux/swap.h | 1 + mm/swapfile.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/swap.h b/include/linux/swap.h index 68df9c1..6de44c9 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -348,6 +348,7 @@ extern struct page *swapin_readahead(swp_entry_t, gfp_t, /* linux/mm/swapfile.c */ extern long nr_swap_pages; extern long total_swap_pages; +extern unsigned int nr_swapfiles; extern void si_swapinfo(struct sysinfo *); extern swp_entry_t get_swap_page(void); extern swp_entry_t get_swap_page_of_type(int); diff --git a/mm/swapfile.c b/mm/swapfile.c index e97a0e5..89cebcf 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -46,7 +46,7 @@ static void free_swap_count_continuations(struct swap_info_struct *); static sector_t map_swap_entry(swp_entry_t, struct block_device**); DEFINE_SPINLOCK(swap_lock); -static unsigned int nr_swapfiles; +unsigned int nr_swapfiles; long nr_swap_pages; long total_swap_pages; static int least_priority; -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>