f2fs: add sbi and page pointer in f2fs_io_info

[deliverable/linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8be6cab3cbe452dc8af03016986203baef61903d..e99a404d97d74994afaf8b3cc58f31cb1caf2319 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -70,6 +70,13 @@ struct f2fs_mount_info {
        unsigned int    opt;
 };
 
+#define F2FS_HAS_FEATURE(sb, mask)                                     \
+       ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
+#define F2FS_SET_FEATURE(sb, mask)                                     \
+       F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)
+#define F2FS_CLEAR_FEATURE(sb, mask)                                   \
+       F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
+
 #define CRCPOLY_LE 0xedb88320
 
 static inline __u32 f2fs_crc32(void *buf, size_t len)
@@ -314,12 +321,35 @@ struct extent_tree {
        unsigned int count;             /* # of extent node in rb-tree*/
 };
 
+/*
+ * This structure is taken from ext4_map_blocks.
+ *
+ * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
+ */
+#define F2FS_MAP_NEW           (1 << BH_New)
+#define F2FS_MAP_MAPPED                (1 << BH_Mapped)
+#define F2FS_MAP_FLAGS         (F2FS_MAP_NEW | F2FS_MAP_MAPPED)
+
+struct f2fs_map_blocks {
+       block_t m_pblk;
+       block_t m_lblk;
+       unsigned int m_len;
+       unsigned int m_flags;
+};
+
 /*
  * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
  */
 #define FADVISE_COLD_BIT       0x01
 #define FADVISE_LOST_PINO_BIT  0x02
 
+#define file_is_cold(inode)    is_file(inode, FADVISE_COLD_BIT)
+#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
+#define file_set_cold(inode)   set_file(inode, FADVISE_COLD_BIT)
+#define file_lost_pino(inode)  set_file(inode, FADVISE_LOST_PINO_BIT)
+#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
+#define file_got_pino(inode)   clear_file(inode, FADVISE_LOST_PINO_BIT)
+
 #define DEF_DIR_LEVEL          0
 
 struct f2fs_inode_info {
@@ -571,9 +601,11 @@ enum page_type {
 };
 
 struct f2fs_io_info {
+       struct f2fs_sb_info *sbi;       /* f2fs_sb_info pointer */
        enum page_type type;    /* contains DATA/NODE/META/META_FLUSH */
        int rw;                 /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
        block_t blk_addr;       /* block address to be written */
+       struct page *page;      /* page to be written */
 };
 
 #define is_read_io(rw) (((rw) & 1) == READ)
@@ -1391,6 +1423,21 @@ static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
                kunmap(page);
 }
 
+static inline int is_file(struct inode *inode, int type)
+{
+       return F2FS_I(inode)->i_advise & type;
+}
+
+static inline void set_file(struct inode *inode, int type)
+{
+       F2FS_I(inode)->i_advise |= type;
+}
+
+static inline void clear_file(struct inode *inode, int type)
+{
+       F2FS_I(inode)->i_advise &= ~type;
+}
+
 static inline int f2fs_readonly(struct super_block *sb)
 {
        return sb->s_flags & MS_RDONLY;
@@ -1490,6 +1537,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
 /*
  * super.c
  */
+int f2fs_commit_super(struct f2fs_sb_info *);
 int f2fs_sync_fs(struct super_block *, int);
 extern __printf(3, 4)
 void f2fs_msg(struct super_block *, const char *, const char *, ...);
@@ -1555,11 +1603,9 @@ void allocate_new_segments(struct f2fs_sb_info *);
 int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
 struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
 void write_meta_page(struct f2fs_sb_info *, struct page *);
-void write_node_page(struct f2fs_sb_info *, struct page *,
-                               unsigned int, struct f2fs_io_info *);
-void write_data_page(struct page *, struct dnode_of_data *,
-                       struct f2fs_io_info *);
-void rewrite_data_page(struct page *, struct f2fs_io_info *);
+void write_node_page(unsigned int, struct f2fs_io_info *);
+void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
+void rewrite_data_page(struct f2fs_io_info *);
 void recover_data_page(struct f2fs_sb_info *, struct page *,
                                struct f2fs_summary *, block_t, block_t);
 void allocate_data_block(struct f2fs_sb_info *, struct page *,
@@ -1607,10 +1653,8 @@ void destroy_checkpoint_caches(void);
  * data.c
  */
 void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
-int f2fs_submit_page_bio(struct f2fs_sb_info *, struct page *,
-                                               struct f2fs_io_info *);
-void f2fs_submit_page_mbio(struct f2fs_sb_info *, struct page *,
-                                               struct f2fs_io_info *);
+int f2fs_submit_page_bio(struct f2fs_io_info *);
+void f2fs_submit_page_mbio(struct f2fs_io_info *);
 void set_data_blkaddr(struct dnode_of_data *);
 int reserve_new_block(struct dnode_of_data *);
 int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
@@ -1622,7 +1666,7 @@ void f2fs_preserve_extent_tree(struct inode *);
 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 do_write_data_page(struct f2fs_io_info *);
 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
 void init_extent_cache_info(struct f2fs_sb_info *);
 int __init create_extent_cache(void);
@@ -1793,7 +1837,8 @@ extern struct kmem_cache *inode_entry_slab;
 /*
  * inline.c
  */
-bool f2fs_may_inline(struct inode *);
+bool f2fs_may_inline_data(struct inode *);
+bool f2fs_may_inline_dentry(struct inode *);
 void read_inline_data(struct page *, struct page *);
 bool truncate_inline_inode(struct page *, u64);
 int f2fs_read_inline_data(struct inode *, struct page *);