f2fs: use atomic for counting inode with inline_{dir,inode} flag

As inline_{dir,inode} stat is increased/decreased concurrently by multi threads,
so the value is not so accurate, let's use atomic type for counting accurately.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 4e2e39c0ba69..91e8f699ab30 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -46,8 +46,8 @@ static void update_general_status(struct f2fs_sb_info *sbi)
         si->valid_count = valid_user_blocks(sbi);
         si->valid_node_count = valid_node_count(sbi);
         si->valid_inode_count = valid_inode_count(sbi);
-        si->inline_inode = sbi->inline_inode;
-        si->inline_dir = sbi->inline_dir;
+        si->inline_inode = atomic_read(&sbi->inline_inode);
+        si->inline_dir = atomic_read(&sbi->inline_dir);
         si->utilization = utilization(sbi);
 
         si->free_segs = free_segments(sbi);
@@ -329,6 +329,9 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
         si->sbi = sbi;
         sbi->stat_info = si;
 
+        atomic_set(&sbi->inline_inode, 0);
+        atomic_set(&sbi->inline_dir, 0);
+
         mutex_lock(&f2fs_stat_mutex);
         list_add_tail(&si->stat_list, &f2fs_stat_list);
         mutex_unlock(&f2fs_stat_mutex);