f2fs: merge flags in struct f2fs_sb_info

[mirror_ubuntu-artful-kernel.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9e1fcc1f64eeccee60fef56c95d4ff104b436567..5abe0836c1790ec925e70ef8797ec7db140a9d3e 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -28,7 +28,7 @@
        do {                                                            \
                if (unlikely(condition)) {                              \
                        WARN_ON(1);                                     \
-                       sbi->need_fsck = true;                          \
+                       set_sbi_flag(sbi, SBI_NEED_FSCK);               \
                }                                                       \
        } while (0)
 #define f2fs_down_write(x, y)  down_write(x)
@@ -519,14 +519,20 @@ struct inode_management {
        unsigned long ino_num;                  /* number of entries */
 };
 
+/* For s_flag in struct f2fs_sb_info */
+enum {
+       SBI_IS_DIRTY,                           /* dirty flag for checkpoint */
+       SBI_IS_CLOSE,                           /* specify unmounting */
+       SBI_NEED_FSCK,                          /* need fsck.f2fs to fix */
+       SBI_POR_DOING,                          /* recovery is doing or not */
+};
+
 struct f2fs_sb_info {
        struct super_block *sb;                 /* pointer to VFS super block */
        struct proc_dir_entry *s_proc;          /* proc entry */
        struct buffer_head *raw_super_buf;      /* buffer head of raw sb */
        struct f2fs_super_block *raw_super;     /* raw super block pointer */
-       int s_dirty;                            /* dirty flag for checkpoint */
-       bool need_fsck;                         /* need fsck.f2fs to fix */
-       bool s_closing;                         /* specify unmounting */
+       int s_flag;                             /* flags for sbi */
 
        /* for node-related operations */
        struct f2fs_nm_info *nm_info;           /* node manager */
@@ -546,7 +552,6 @@ struct f2fs_sb_info {
        struct rw_semaphore cp_rwsem;           /* blocking FS operations */
        struct rw_semaphore node_write;         /* locking node writes */
        struct mutex writepages;                /* mutex for writepages() */
-       bool por_doing;                         /* recovery is doing or not */
        wait_queue_head_t cp_wait;
 
        struct inode_management im[MAX_INO_ENTRY];      /* manage inode cache */
@@ -699,14 +704,19 @@ static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
        return sbi->node_inode->i_mapping;
 }
 
-static inline void F2FS_SET_SB_DIRT(struct f2fs_sb_info *sbi)
+static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
+{
+       return sbi->s_flag & (0x01 << type);
+}
+
+static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
 {
-       sbi->s_dirty = 1;
+       sbi->s_flag |= (0x01 << type);
 }
 
-static inline void F2FS_RESET_SB_DIRT(struct f2fs_sb_info *sbi)
+static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
 {
-       sbi->s_dirty = 0;
+       sbi->s_flag &= ~(0x01 << type);
 }
 
 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
@@ -818,7 +828,7 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
 {
        atomic_inc(&sbi->nr_pages[count_type]);
-       F2FS_SET_SB_DIRT(sbi);
+       set_sbi_flag(sbi, SBI_IS_DIRTY);
 }
 
 static inline void inode_inc_dirty_pages(struct inode *inode)