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Commit 4bf6fd9f authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
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f2fs: show extent tree, node stat info in debugfs 



This patch add and show stat info of total memory footprint for extent tree,node
in debugfs.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 1dcc336b

fs/f2fs/debug.c

+7 −0
Original line number Diff line number Diff line
@@ -35,6 +35,8 @@ static void update_general_status(struct f2fs_sb_info *sbi) 
	/* validation check of the segment numbers */

	si->hit_ext = sbi->read_hit_ext;

	si->total_ext = sbi->total_hit_ext;

	si->ext_tree = sbi->total_ext_tree;

	si->ext_node = atomic_read(&sbi->total_ext_node);

	si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);

	si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);

	si->ndirty_dirs = sbi->n_dirty_dirs;
@@ -185,6 +187,9 @@ static void update_mem_info(struct f2fs_sb_info *sbi) 
	si->cache_mem += sbi->n_dirty_dirs * sizeof(struct inode_entry);

	for (i = 0; i <= UPDATE_INO; i++)

		si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);

	si->cache_mem += sbi->total_ext_tree * sizeof(struct extent_tree);

	si->cache_mem += atomic_read(&sbi->total_ext_node) *

						sizeof(struct extent_node);



	si->page_mem = 0;

	npages = NODE_MAPPING(sbi)->nrpages;
@@ -267,6 +272,8 @@ static int stat_show(struct seq_file *s, void *v) 
		seq_printf(s, "  - node blocks : %d\n", si->node_blks);

		seq_printf(s, "\nExtent Hit Ratio: %d / %d\n",

			   si->hit_ext, si->total_ext);

		seq_printf(s, "\nExtent Tree Count: %d\n", si->ext_tree);

		seq_printf(s, "\nExtent Node Count: %d\n", si->ext_node);

		seq_puts(s, "\nBalancing F2FS Async:\n");

		seq_printf(s, "  - inmem: %4d, wb: %4d\n",

			   si->inmem_pages, si->wb_pages);

fs/f2fs/f2fs.h

+1 −1
Original line number Diff line number Diff line
@@ -1607,7 +1607,7 @@ struct f2fs_stat_info { 
	struct f2fs_sb_info *sbi;

	int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;

	int main_area_segs, main_area_sections, main_area_zones;

	int hit_ext, total_ext;

	int hit_ext, total_ext, ext_tree, ext_node;

	int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta;

	int nats, dirty_nats, sits, dirty_sits, fnids;

	int total_count, utilization;