Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mcheha...

[karo-tx-linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 2c5a5dadae65883fabbbd3d89cd74d600f9a0b8a..e51c732b0dd9043ccdc37e8e68d10a024c82a6e0 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -182,6 +182,8 @@ enum {
 
 #define F2FS_LINK_MAX          32000   /* maximum link count per file */
 
+#define MAX_DIR_RA_PAGES       4       /* maximum ra pages of dir */
+
 /* for in-memory extent cache entry */
 #define F2FS_MIN_EXTENT_LEN    16      /* minimum extent length */
 
@@ -218,6 +220,7 @@ struct f2fs_inode_info {
        nid_t i_xattr_nid;              /* node id that contains xattrs */
        unsigned long long xattr_ver;   /* cp version of xattr modification */
        struct extent_info ext;         /* in-memory extent cache entry */
+       struct dir_inode_entry *dirty_dir;      /* the pointer of dirty dir */
 };
 
 static inline void get_extent_info(struct extent_info *ext,
@@ -243,6 +246,7 @@ static inline void set_raw_extent(struct extent_info *ext,
 struct f2fs_nm_info {
        block_t nat_blkaddr;            /* base disk address of NAT */
        nid_t max_nid;                  /* maximum possible node ids */
+       nid_t available_nids;           /* maximum available node ids */
        nid_t next_scan_nid;            /* the next nid to be scanned */
        unsigned int ram_thresh;        /* control the memory footprint */
 
@@ -323,6 +327,15 @@ struct flush_cmd {
        int ret;
 };
 
+struct flush_cmd_control {
+       struct task_struct *f2fs_issue_flush;   /* flush thread */
+       wait_queue_head_t flush_wait_queue;     /* waiting queue for wake-up */
+       struct flush_cmd *issue_list;           /* list for command issue */
+       struct flush_cmd *dispatch_list;        /* list for command dispatch */
+       spinlock_t issue_lock;                  /* for issue list lock */
+       struct flush_cmd *issue_tail;           /* list tail of issue list */
+};
+
 struct f2fs_sm_info {
        struct sit_info *sit_info;              /* whole segment information */
        struct free_segmap_info *free_info;     /* free segment information */
@@ -353,12 +366,8 @@ struct f2fs_sm_info {
        unsigned int min_ipu_util;      /* in-place-update threshold */
 
        /* for flush command control */
-       struct task_struct *f2fs_issue_flush;   /* flush thread */
-       wait_queue_head_t flush_wait_queue;     /* waiting queue for wake-up */
-       struct flush_cmd *issue_list;           /* list for command issue */
-       struct flush_cmd *dispatch_list;        /* list for command dispatch */
-       spinlock_t issue_lock;                  /* for issue list lock */
-       struct flush_cmd *issue_tail;           /* list tail of issue list */
+       struct flush_cmd_control *cmd_control_info;
+
 };
 
 /*
@@ -755,9 +764,18 @@ static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
 {
        struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
-       int offset = (flag == NAT_BITMAP) ?
+       int offset;
+
+       if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload) > 0) {
+               if (flag == NAT_BITMAP)
+                       return &ckpt->sit_nat_version_bitmap;
+               else
+                       return ((unsigned char *)ckpt + F2FS_BLKSIZE);
+       } else {
+               offset = (flag == NAT_BITMAP) ?
                        le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
-       return &ckpt->sit_nat_version_bitmap + offset;
+               return &ckpt->sit_nat_version_bitmap + offset;
+       }
 }
 
 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
@@ -958,6 +976,7 @@ static inline int f2fs_clear_bit(unsigned int nr, char *addr)
 enum {
        FI_NEW_INODE,           /* indicate newly allocated inode */
        FI_DIRTY_INODE,         /* indicate inode is dirty or not */
+       FI_DIRTY_DIR,           /* indicate directory has dirty pages */
        FI_INC_LINK,            /* need to increment i_nlink */
        FI_ACL_MODE,            /* indicate acl mode */
        FI_NO_ALLOC,            /* should not allocate any blocks */
@@ -1071,6 +1090,12 @@ static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi)
        ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \
         (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
 
+/* get offset of first page in next direct node */
+#define PGOFS_OF_NEXT_DNODE(pgofs, fi)                         \
+       ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) :  \
+       (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) /       \
+       ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi))
+
 /*
  * file.c
  */
@@ -1140,8 +1165,10 @@ f2fs_hash_t f2fs_dentry_hash(const char *, size_t);
 struct dnode_of_data;
 struct node_info;
 
+bool available_free_memory(struct f2fs_sb_info *, int);
 int is_checkpointed_node(struct f2fs_sb_info *, nid_t);
 bool fsync_mark_done(struct f2fs_sb_info *, nid_t);
+void fsync_mark_clear(struct f2fs_sb_info *, nid_t);
 void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
 int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
 int truncate_inode_blocks(struct inode *, pgoff_t);
@@ -1176,6 +1203,8 @@ void destroy_node_manager_caches(void);
 void f2fs_balance_fs(struct f2fs_sb_info *);
 void f2fs_balance_fs_bg(struct f2fs_sb_info *);
 int f2fs_issue_flush(struct f2fs_sb_info *);
+int create_flush_cmd_control(struct f2fs_sb_info *);
+void destroy_flush_cmd_control(struct f2fs_sb_info *);
 void invalidate_blocks(struct f2fs_sb_info *, block_t);
 void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
 void clear_prefree_segments(struct f2fs_sb_info *);
@@ -1222,7 +1251,6 @@ int get_valid_checkpoint(struct f2fs_sb_info *);
 void set_dirty_dir_page(struct inode *, struct page *);
 void add_dirty_dir_inode(struct inode *);
 void remove_dirty_dir_inode(struct inode *);
-struct inode *check_dirty_dir_inode(struct f2fs_sb_info *, nid_t);
 void sync_dirty_dir_inodes(struct f2fs_sb_info *);
 void write_checkpoint(struct f2fs_sb_info *, bool);
 void init_orphan_info(struct f2fs_sb_info *);
@@ -1243,6 +1271,7 @@ 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
@@ -1392,5 +1421,6 @@ bool f2fs_may_inline(struct inode *);
 int f2fs_read_inline_data(struct inode *, struct page *);
 int f2fs_convert_inline_data(struct inode *, pgoff_t);
 int f2fs_write_inline_data(struct inode *, struct page *, unsigned int);
+void truncate_inline_data(struct inode *, u64);
 int recover_inline_data(struct inode *, struct page *);
 #endif