Merge "Revert "mm: vmscan: Add a debug file for shrinkers"" (e5abd97b) · Commits · e / devices / android_kernel_xiaomi_markw

mm/vmscan.c

+0 −43

Original line number	Diff line number	Diff line
		@@ -46,7 +46,6 @@
		#include <linux/oom.h>
		#include <linux/prefetch.h>
		#include <linux/printk.h>
		#include <linux/debugfs.h>

		#include <asm/tlbflush.h>
		#include <asm/div64.h>
		@@ -200,39 +199,6 @@ static unsigned long get_lru_size(struct lruvec *lruvec, enum lru_list lru)
		return zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru);
		}

		struct dentry *debug_file;

		static int debug_shrinker_show(struct seq_file s, void unused)
		{
		struct shrinker *shrinker;
		struct shrink_control sc;

		sc.gfp_mask = -1;
		sc.nr_to_scan = 0;

		down_read(&shrinker_rwsem);
		list_for_each_entry(shrinker, &shrinker_list, list) {
		int num_objs;

		num_objs = shrinker->count_objects(shrinker, &sc);
		seq_printf(s, "%pf %d\n", shrinker->scan_objects, num_objs);
		}
		up_read(&shrinker_rwsem);
		return 0;
		}

		static int debug_shrinker_open(struct inode inode, struct file file)
		{
		return single_open(file, debug_shrinker_show, inode->i_private);
		}

		static const struct file_operations debug_shrinker_fops = {
		.open = debug_shrinker_open,
		.read = seq_read,
		.llseek = seq_lseek,
		.release = single_release,
		};

		/*
		* Add a shrinker callback to be called from the vm.
		*/
		@@ -262,15 +228,6 @@ int register_shrinker(struct shrinker *shrinker)
		}
		EXPORT_SYMBOL(register_shrinker);

		static int __init add_shrinker_debug(void)
		{
		debugfs_create_file("shrinker", 0644, NULL, NULL,
		&debug_shrinker_fops);
		return 0;
		}

		late_initcall(add_shrinker_debug);

		/*
		* Remove one
		*/