From 03e14d522eb1fdf9c0ce37085cb56749342a842c Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Mon, 8 Dec 2014 19:08:20 +0800 Subject: 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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/f2fs/f2fs.h') diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f60b817a7f0d..2695d78d57dd 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -590,8 +590,8 @@ struct f2fs_sb_info { unsigned int segment_count[2]; /* # of allocated segments */ unsigned int block_count[2]; /* # of allocated blocks */ int total_hit_ext, read_hit_ext; /* extent cache hit ratio */ - int inline_inode; /* # of inline_data inodes */ - int inline_dir; /* # of inline_dentry inodes */ + atomic_t inline_inode; /* # of inline_data inodes */ + atomic_t inline_dir; /* # of inline_dentry inodes */ int bg_gc; /* background gc calls */ unsigned int n_dirty_dirs; /* # of dir inodes */ #endif @@ -1532,22 +1532,22 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) #define stat_inc_inline_inode(inode) \ do { \ if (f2fs_has_inline_data(inode)) \ - ((F2FS_I_SB(inode))->inline_inode++); \ + (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ } while (0) #define stat_dec_inline_inode(inode) \ do { \ if (f2fs_has_inline_data(inode)) \ - ((F2FS_I_SB(inode))->inline_inode--); \ + (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ } while (0) #define stat_inc_inline_dir(inode) \ do { \ if (f2fs_has_inline_dentry(inode)) \ - ((F2FS_I_SB(inode))->inline_dir++); \ + (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ } while (0) #define stat_dec_inline_dir(inode) \ do { \ if (f2fs_has_inline_dentry(inode)) \ - ((F2FS_I_SB(inode))->inline_dir--); \ + (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ } while (0) #define stat_inc_seg_type(sbi, curseg) \ ((sbi)->segment_count[(curseg)->alloc_type]++) -- cgit v1.2.3