f2fs: expose quota information in debugfs

This patch shows # of dirty pages and # of hidden quota files.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

2 files changed, 19 insertions, 2 deletions

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index f7eec506ceea..ecada8425268 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -45,9 +45,18 @@ static void update_general_status(struct f2fs_sb_info *sbi)
         si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
         si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
         si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
+        si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
         si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
         si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
         si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
+
+        si->nquota_files = 0;
+        if (f2fs_sb_has_quota_ino(sbi->sb)) {
+                for (i = 0; i < MAXQUOTAS; i++) {
+                        if (f2fs_qf_ino(sbi->sb, i))
+                                si->nquota_files++;
+                }
+        }
         si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
         si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES);
         si->aw_cnt = atomic_read(&sbi->aw_cnt);
@@ -369,6 +378,8 @@ static int stat_show(struct seq_file *s, void *v)
                            si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
                 seq_printf(s, "  - datas: %4d in files:%4d\n",
                            si->ndirty_data, si->ndirty_files);
+                seq_printf(s, "  - quota datas: %4d in quota files:%4d\n",
+                           si->ndirty_qdata, si->nquota_files);
                 seq_printf(s, "  - meta: %4d in %4d\n",
                            si->ndirty_meta, si->meta_pages);
                 seq_printf(s, "  - imeta: %4d\n",
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5c379a8ea075..44f874483ecf 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -865,6 +865,7 @@ struct f2fs_sm_info {
 enum count_type {
         F2FS_DIRTY_DENTS,
         F2FS_DIRTY_DATA,
+        F2FS_DIRTY_QDATA,
         F2FS_DIRTY_NODES,
         F2FS_DIRTY_META,
         F2FS_INMEM_PAGES,
@@ -1642,6 +1643,8 @@ static inline void inode_inc_dirty_pages(struct inode *inode)
         atomic_inc(&F2FS_I(inode)->dirty_pages);
         inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
                                 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
+        if (IS_NOQUOTA(inode))
+                inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
 }
 
 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
@@ -1658,6 +1661,8 @@ static inline void inode_dec_dirty_pages(struct inode *inode)
         atomic_dec(&F2FS_I(inode)->dirty_pages);
         dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
                                 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
+        if (IS_NOQUOTA(inode))
+                dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
 }
 
 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
@@ -2771,9 +2776,10 @@ struct f2fs_stat_info {
         unsigned long long hit_largest, hit_cached, hit_rbtree;
         unsigned long long hit_total, total_ext;
         int ext_tree, zombie_tree, ext_node;
-        int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
+        int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
+        int ndirty_data, ndirty_qdata;
         int inmem_pages;
-        unsigned int ndirty_dirs, ndirty_files, ndirty_all;
+        unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
         int nats, dirty_nats, sits, dirty_sits;
         int free_nids, avail_nids, alloc_nids;
         int total_count, utilization;