diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2015-09-30 17:38:48 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-09 16:20:55 -0700 |
| commit | 5b7ee374144f8ef2db3e25d0d59a8ad83bb3cf33 (patch) | |
| tree | 2262b10a4e6164f1ab375487e98ec21087bc39b1 /fs/f2fs/f2fs.h | |
| parent | 39307a8e2459ecdee9f1bc0b8a5d7af4a6d8f754 (diff) | |
| download | linux-5b7ee374144f8ef2db3e25d0d59a8ad83bb3cf33.tar.bz2 | |
f2fs: use atomic64_t for extent cache hit stat
Our hit stat of extent cache will increase all the time until remount,
and we use atomic_t type for the stat variable, so it may easily incur
overflow when we query extent cache frequently in a long time running
fs.
So to avoid that, this patch uses atomic64_t for hit stat variables.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 6f27b921b027..1fa0555d1c2c 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -795,10 +795,10 @@ struct f2fs_sb_info { unsigned int segment_count[2]; /* # of allocated segments */ unsigned int block_count[2]; /* # of allocated blocks */ atomic_t inplace_count; /* # of inplace update */ - atomic_t total_hit_ext; /* # of lookup extent cache */ - atomic_t read_hit_rbtree; /* # of hit rbtree extent node */ - atomic_t read_hit_largest; /* # of hit largest extent node */ - atomic_t read_hit_cached; /* # of hit cached extent node */ + atomic64_t total_hit_ext; /* # of lookup extent cache */ + atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ + atomic64_t read_hit_largest; /* # of hit largest extent node */ + atomic64_t read_hit_cached; /* # of hit cached extent node */ atomic_t inline_xattr; /* # of inline_xattr inodes */ atomic_t inline_inode; /* # of inline_data inodes */ atomic_t inline_dir; /* # of inline_dentry inodes */ @@ -1848,7 +1848,8 @@ 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_largest, hit_cached, hit_rbtree, hit_total, total_ext; + unsigned long long hit_largest, hit_cached, hit_rbtree; + unsigned long long hit_total, total_ext; int ext_tree, ext_node; int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; int nats, dirty_nats, sits, dirty_sits, fnids; @@ -1885,10 +1886,10 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) #define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--) -#define stat_inc_total_hit(sbi) (atomic_inc(&(sbi)->total_hit_ext)) -#define stat_inc_rbtree_node_hit(sbi) (atomic_inc(&(sbi)->read_hit_rbtree)) -#define stat_inc_largest_node_hit(sbi) (atomic_inc(&(sbi)->read_hit_largest)) -#define stat_inc_cached_node_hit(sbi) (atomic_inc(&(sbi)->read_hit_cached)) +#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) +#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) +#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) +#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) #define stat_inc_inline_xattr(inode) \ do { \ if (f2fs_has_inline_xattr(inode)) \ |