f2fs: add nobarrier mount option

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index f628c3c5e63faf3b7834190705906358a6bd4ed5..e999eec200b74e3378dd37a5dde9c8c98ba7b9f8 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -41,6 +41,7 @@
 #define F2FS_MOUNT_INLINE_XATTR                0x00000080
 #define F2FS_MOUNT_INLINE_DATA         0x00000100
 #define F2FS_MOUNT_FLUSH_MERGE         0x00000200
+#define F2FS_MOUNT_NOBARRIER           0x00000400
 
 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
 #define set_opt(sbi, option)   (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
@@ -256,6 +257,8 @@ struct f2fs_nm_info {
        unsigned int nat_cnt;           /* the # of cached nat entries */
        struct list_head nat_entries;   /* cached nat entry list (clean) */
        struct list_head dirty_nat_entries; /* cached nat entry list (dirty) */
+       struct list_head nat_entry_set; /* nat entry set list */
+       unsigned int dirty_nat_cnt;     /* total num of nat entries in set */
 
        /* free node ids management */
        struct radix_tree_root free_nid_root;/* root of the free_nid cache */
@@ -342,9 +345,6 @@ struct f2fs_sm_info {
        struct dirty_seglist_info *dirty_info;  /* dirty segment information */
        struct curseg_info *curseg_array;       /* active segment information */
 
-       struct list_head wblist_head;   /* list of under-writeback pages */
-       spinlock_t wblist_lock;         /* lock for checkpoint */
-
        block_t seg0_blkaddr;           /* block address of 0'th segment */
        block_t main_blkaddr;           /* start block address of main area */
        block_t ssa_blkaddr;            /* start block address of SSA area */
@@ -644,7 +644,8 @@ static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
  */
 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
 {
-       WARN_ON((nid >= NM_I(sbi)->max_nid));
+       if (unlikely(nid < F2FS_ROOT_INO(sbi)))
+               return -EINVAL;
        if (unlikely(nid >= NM_I(sbi)->max_nid))
                return -EINVAL;
        return 0;
@@ -1138,6 +1139,7 @@ void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
 int update_dent_inode(struct inode *, const struct qstr *);
 int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);
 void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *);
+int f2fs_do_tmpfile(struct inode *, struct inode *);
 int f2fs_make_empty(struct inode *, struct inode *);
 bool f2fs_empty_dir(struct inode *);
 
@@ -1157,7 +1159,7 @@ void f2fs_msg(struct super_block *, const char *, const char *, ...);
 /*
  * hash.c
  */
-f2fs_hash_t f2fs_dentry_hash(const char *, size_t);
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
 
 /*
  * node.c
@@ -1175,7 +1177,7 @@ int truncate_inode_blocks(struct inode *, pgoff_t);
 int truncate_xattr_node(struct inode *, struct page *);
 int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
 void remove_inode_page(struct inode *);
-struct page *new_inode_page(struct inode *, const struct qstr *);
+struct page *new_inode_page(struct inode *);
 struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
 void ra_node_page(struct f2fs_sb_info *, nid_t);
 struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
@@ -1271,6 +1273,7 @@ struct page *find_data_page(struct inode *, pgoff_t, bool);
 struct page *get_lock_data_page(struct inode *, pgoff_t);
 struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
 int do_write_data_page(struct page *, struct f2fs_io_info *);
+int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
 
 /*
  * gc.c
@@ -1296,7 +1299,6 @@ bool space_for_roll_forward(struct f2fs_sb_info *);
 struct f2fs_stat_info {
        struct list_head stat_list;
        struct f2fs_sb_info *sbi;
-       struct mutex stat_lock;
        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_ext, total_ext;