1 files changed, 77 insertions, 53 deletions

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index cb3653efb57..d6857523336 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -23,13 +23,16 @@
 #define DBG_EXTENT      0x00000020
 #define DBG_BITMAP      0x00000040
 
-//#define DBG_MASK      (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
-//#define DBG_MASK      (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)
-//#define DBG_MASK      (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
+#if 0
+#define DBG_MASK        (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
+#define DBG_MASK        (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)
+#define DBG_MASK        (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
+#endif
 #define DBG_MASK        (0)
 
 #define dprint(flg, fmt, args...) \
-        if (flg & DBG_MASK) printk(fmt , ## args)
+        if (flg & DBG_MASK) \
+                printk(fmt , ## args)
 
 /* Runtime config options */
 #define HFSPLUS_DEF_CR_TYPE    0x3F3F3F3F  /* '????' */
@@ -37,7 +40,8 @@
 #define HFSPLUS_TYPE_DATA 0x00
 #define HFSPLUS_TYPE_RSRC 0xFF
 
-typedef int (*btree_keycmp)(const hfsplus_btree_key *, const hfsplus_btree_key *);
+typedef int (*btree_keycmp)(const hfsplus_btree_key *,
+                const hfsplus_btree_key *);
 
 #define NODE_HASH_SIZE  256
 
@@ -61,7 +65,6 @@ struct hfs_btree {
         unsigned int max_key_len;
         unsigned int depth;
 
-        //unsigned int map1_size, map_size;
         struct mutex tree_lock;
 
         unsigned int pages_per_bnode;
@@ -107,8 +110,8 @@ struct hfsplus_vh;
 struct hfs_btree;
 
 struct hfsplus_sb_info {
-        struct buffer_head *s_vhbh;
         struct hfsplus_vh *s_vhdr;
+        struct hfsplus_vh *s_backup_vhdr;
         struct hfs_btree *ext_tree;
         struct hfs_btree *cat_tree;
         struct hfs_btree *attr_tree;
@@ -118,7 +121,8 @@ struct hfsplus_sb_info {
 
         /* Runtime variables */
         u32 blockoffset;
-        u32 sect_count;
+        sector_t part_start;
+        sector_t sect_count;
         int fs_shift;
 
         /* immutable data from the volume header */
@@ -155,6 +159,12 @@ struct hfsplus_sb_info {
 #define HFSPLUS_SB_FORCE        2
 #define HFSPLUS_SB_HFSX         3
 #define HFSPLUS_SB_CASEFOLD     4
+#define HFSPLUS_SB_NOBARRIER    5
+
+static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
+{
+        return sb->s_fs_info;
+}
 
 
 struct hfsplus_inode_info {
@@ -170,7 +180,7 @@ struct hfsplus_inode_info {
         u32 cached_blocks;
         hfsplus_extent_rec first_extents;
         hfsplus_extent_rec cached_extents;
-        unsigned long flags;
+        unsigned int extent_state;
         struct mutex extents_lock;
 
         /*
@@ -185,6 +195,11 @@ struct hfsplus_inode_info {
         u32 linkid;
 
         /*
+         * Accessed using atomic bitops.
+         */
+        unsigned long flags;
+
+        /*
          * Protected by i_mutex.
          */
         sector_t fs_blocks;
@@ -195,12 +210,34 @@ struct hfsplus_inode_info {
         struct inode vfs_inode;
 };
 
-#define HFSPLUS_FLG_RSRC        0x0001
-#define HFSPLUS_FLG_EXT_DIRTY   0x0002
-#define HFSPLUS_FLG_EXT_NEW     0x0004
+#define HFSPLUS_EXT_DIRTY       0x0001
+#define HFSPLUS_EXT_NEW         0x0002
+
+#define HFSPLUS_I_RSRC          0       /* represents a resource fork */
+#define HFSPLUS_I_CAT_DIRTY     1       /* has changes in the catalog tree */
+#define HFSPLUS_I_EXT_DIRTY     2       /* has changes in the extent tree */
+#define HFSPLUS_I_ALLOC_DIRTY   3       /* has changes in the allocation file */
+
+#define HFSPLUS_IS_RSRC(inode) \
+        test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)
+
+static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
+{
+        return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
+}
 
-#define HFSPLUS_IS_DATA(inode)   (!(HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC))
-#define HFSPLUS_IS_RSRC(inode)   (HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC)
+/*
+ * Mark an inode dirty, and also mark the btree in which the
+ * specific type of metadata is stored.
+ * For data or metadata that gets written back by into the catalog btree
+ * by hfsplus_write_inode a plain mark_inode_dirty call is enough.
+ */
+static inline void hfsplus_mark_inode_dirty(struct inode *inode,
+                unsigned int flag)
+{
+        set_bit(flag, &HFSPLUS_I(inode)->flags);
+        mark_inode_dirty(inode);
+}
 
 struct hfs_find_data {
         /* filled by caller */
@@ -318,9 +355,12 @@ int hfs_brec_read(struct hfs_find_data *, void *, int);
 int hfs_brec_goto(struct hfs_find_data *, int);
 
 /* catalog.c */
-int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
-int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
-void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *, u32, struct qstr *);
+int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *,
+                const hfsplus_btree_key *);
+int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *,
+                const hfsplus_btree_key *);
+void hfsplus_cat_build_key(struct super_block *sb,
+                hfsplus_btree_key *, u32, struct qstr *);
 int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
 int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
 int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
@@ -336,7 +376,8 @@ extern const struct file_operations hfsplus_dir_operations;
 int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
 void hfsplus_ext_write_extent(struct inode *);
 int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
-int hfsplus_free_fork(struct super_block *, u32, struct hfsplus_fork_raw *, int);
+int hfsplus_free_fork(struct super_block *, u32,
+                struct hfsplus_fork_raw *, int);
 int hfsplus_file_extend(struct inode *);
 void hfsplus_file_truncate(struct inode *);
 
@@ -351,6 +392,7 @@ int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
 int hfsplus_cat_write_inode(struct inode *);
 struct inode *hfsplus_new_inode(struct super_block *, int);
 void hfsplus_delete_inode(struct inode *);
+int hfsplus_file_fsync(struct file *file, int datasync);
 
 /* ioctl.c */
 long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
@@ -362,6 +404,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);
 
 /* options.c */
 int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
+int hfsplus_parse_options_remount(char *input, int *force);
 void hfsplus_fill_defaults(struct hfsplus_sb_info *);
 int hfsplus_show_options(struct seq_file *, struct vfsmount *);
 
@@ -375,45 +418,26 @@ extern u16 hfsplus_decompose_table[];
 extern u16 hfsplus_compose_table[];
 
 /* unicode.c */
-int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
-int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
-int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *);
-int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int);
-int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str);
-int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2);
+int hfsplus_strcasecmp(const struct hfsplus_unistr *,
+                const struct hfsplus_unistr *);
+int hfsplus_strcmp(const struct hfsplus_unistr *,
+                const struct hfsplus_unistr *);
+int hfsplus_uni2asc(struct super_block *,
+                const struct hfsplus_unistr *, char *, int *);
+int hfsplus_asc2uni(struct super_block *,
+                struct hfsplus_unistr *, const char *, int);
+int hfsplus_hash_dentry(const struct dentry *dentry,
+                const struct inode *inode, struct qstr *str);
+int hfsplus_compare_dentry(const struct dentry *parent,
+                const struct inode *pinode,
+                const struct dentry *dentry, const struct inode *inode,
+                unsigned int len, const char *str, const struct qstr *name);
 
 /* wrapper.c */
 int hfsplus_read_wrapper(struct super_block *);
-
 int hfs_part_find(struct super_block *, sector_t *, sector_t *);
-
-/* access macros */
-static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
-{
-        return sb->s_fs_info;
-}
-
-static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
-{
-        return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
-}
-
-#define sb_bread512(sb, sec, data) ({                   \
-        struct buffer_head *__bh;                       \
-        sector_t __block;                               \
-        loff_t __start;                                 \
-        int __offset;                                   \
-                                                        \
-        __start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\
-        __block = __start >> (sb)->s_blocksize_bits;    \
-        __offset = __start & ((sb)->s_blocksize - 1);   \
-        __bh = sb_bread((sb), __block);                 \
-        if (likely(__bh != NULL))                       \
-                data = (void *)(__bh->b_data + __offset);\
-        else                                            \
-                data = NULL;                            \
-        __bh;                                           \
-})
+int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
+                void *data, int rw);
 
 /* time macros */
 #define __hfsp_mt2ut(t)         (be32_to_cpu(t) - 2082844800U)