ext4: Remove old legacy block allocator

[safe/jmp/linux-2.6] / fs / ext4 / ext4.h

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9b6ad8f..c50c04c 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -245,7 +245,7 @@ struct flex_groups {
 #define EXT4_RESERVED_FL               0x80000000 /* reserved for ext4 lib */
 
 #define EXT4_FL_USER_VISIBLE           0x000BDFFF /* User visible flags */
-#define EXT4_FL_USER_MODIFIABLE                0x000380FF /* User modifiable flags */
+#define EXT4_FL_USER_MODIFIABLE                0x000B80FF /* User modifiable flags */
 
 /*
  * Inode dynamic state flags
@@ -291,8 +291,6 @@ struct ext4_new_group_data {
 #define        EXT4_IOC_SETFLAGS               FS_IOC_SETFLAGS
 #define        EXT4_IOC_GETVERSION             _IOR('f', 3, long)
 #define        EXT4_IOC_SETVERSION             _IOW('f', 4, long)
-#define EXT4_IOC_GROUP_EXTEND          _IOW('f', 7, unsigned long)
-#define EXT4_IOC_GROUP_ADD             _IOW('f', 8, struct ext4_new_group_input)
 #define        EXT4_IOC_GETVERSION_OLD         FS_IOC_GETVERSION
 #define        EXT4_IOC_SETVERSION_OLD         FS_IOC_SETVERSION
 #ifdef CONFIG_JBD2_DEBUG
@@ -300,7 +298,10 @@ struct ext4_new_group_data {
 #endif
 #define EXT4_IOC_GETRSVSZ              _IOR('f', 5, long)
 #define EXT4_IOC_SETRSVSZ              _IOW('f', 6, long)
-#define EXT4_IOC_MIGRATE               _IO('f', 7)
+#define EXT4_IOC_GROUP_EXTEND          _IOW('f', 7, unsigned long)
+#define EXT4_IOC_GROUP_ADD             _IOW('f', 8, struct ext4_new_group_input)
+#define EXT4_IOC_MIGRATE               _IO('f', 9)
+ /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
 
 /*
  * ioctl commands in 32 bit emulation
@@ -538,7 +539,6 @@ do {                                                                               \
 #define EXT4_MOUNT_JOURNAL_CHECKSUM    0x800000 /* Journal checksums */
 #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT        0x1000000 /* Journal Async Commit */
 #define EXT4_MOUNT_I_VERSION            0x2000000 /* i_version support */
-#define EXT4_MOUNT_MBALLOC             0x4000000 /* Buddy allocation support */
 #define EXT4_MOUNT_DELALLOC            0x8000000 /* Delalloc support */
 /* Compatibility, for having both ext2_fs.h and ext4_fs.h included at once */
 #ifndef _LINUX_EXT2_FS_H
@@ -789,6 +789,8 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
 #define        EXT4_DEF_RESUID         0
 #define        EXT4_DEF_RESGID         0
 
+#define EXT4_DEF_INODE_READAHEAD_BLKS  32
+
 /*
  * Default mount options
  */
@@ -954,6 +956,24 @@ ext4_group_first_block_no(struct super_block *sb, ext4_group_t group_no)
 void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,
                        unsigned long *blockgrpp, ext4_grpblk_t *offsetp);
 
+extern struct proc_dir_entry *ext4_proc_root;
+
+#ifdef CONFIG_PROC_FS
+extern const struct file_operations ext4_ui_proc_fops;
+
+#define        EXT4_PROC_HANDLER(name, var)                                    \
+do {                                                                   \
+       proc = proc_create_data(name, mode, sbi->s_proc,                \
+                               &ext4_ui_proc_fops, &sbi->s_##var);     \
+       if (proc == NULL) {                                             \
+               printk(KERN_ERR "EXT4-fs: can't create %s\n", name);    \
+               goto err_out;                                           \
+       }                                                               \
+} while (0)
+#else
+#define EXT4_PROC_HANDLER(name, var)
+#endif
+
 /*
  * Function prototypes
  */
@@ -981,8 +1001,6 @@ extern ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
 extern ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
                                        ext4_lblk_t iblock, ext4_fsblk_t goal,
                                        unsigned long *count, int *errp);
-extern ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode,
-                       ext4_fsblk_t goal, unsigned long *count, int *errp);
 extern int ext4_claim_free_blocks(struct ext4_sb_info *sbi, s64 nblocks);
 extern ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
                                         s64 nblocks);
@@ -997,8 +1015,6 @@ extern struct ext4_group_desc * ext4_get_group_desc(struct super_block * sb,
                                                    ext4_group_t block_group,
                                                    struct buffer_head ** bh);
 extern int ext4_should_retry_alloc(struct super_block *sb, int *retries);
-extern void ext4_init_block_alloc_info(struct inode *);
-extern void ext4_rsv_window_add(struct super_block *sb, struct ext4_reserve_window_node *rsv);
 
 /* dir.c */
 extern int ext4_check_dir_entry(const char *, struct inode *,
@@ -1033,7 +1049,7 @@ extern int ext4_mb_release(struct super_block *);
 extern ext4_fsblk_t ext4_mb_new_blocks(handle_t *,
                                struct ext4_allocation_request *, int *);
 extern int ext4_mb_reserve_blocks(struct super_block *, int);
-extern void ext4_mb_discard_inode_preallocations(struct inode *);
+extern void ext4_discard_preallocations(struct inode *);
 extern int __init init_ext4_mballoc(void);
 extern void exit_ext4_mballoc(void);
 extern void ext4_mb_free_blocks(handle_t *, struct inode *,
@@ -1063,7 +1079,6 @@ extern int  ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
                                struct kstat *stat);
 extern void ext4_delete_inode(struct inode *);
 extern int  ext4_sync_inode(handle_t *, struct inode *);
-extern void ext4_discard_reservation(struct inode *);
 extern void ext4_dirty_inode(struct inode *);
 extern int ext4_change_inode_journal_flag(struct inode *, int);
 extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *);