1 files changed, 28 insertions, 11 deletions

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index cc7d5edc38c9..17b9998680e3 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -352,6 +352,7 @@ struct ext4_new_group_data {
  /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */
  /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
 #define EXT4_IOC_ALLOC_DA_BLKS          _IO('f', 12)
+#define EXT4_IOC_MOVE_EXT               _IOWR('f', 15, struct move_extent)
 
 /*
  * ioctl commands in 32 bit emulation
@@ -447,6 +448,15 @@ struct ext4_inode {
         __le32  i_version_hi;   /* high 32 bits for 64-bit version */
 };
 
+struct move_extent {
+        __u32 reserved;         /* should be zero */
+        __u32 donor_fd;         /* donor file descriptor */
+        __u64 orig_start;       /* logical start offset in block for orig */
+        __u64 donor_start;      /* logical start offset in block for donor */
+        __u64 len;              /* block length to be moved */
+        __u64 moved_len;        /* moved block length */
+};
+#define MAX_DEFRAG_SIZE         ((1UL<<31) - 1)
 
 #define EXT4_EPOCH_BITS 2
 #define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
@@ -674,7 +684,6 @@ struct ext4_inode_info {
 #define EXT4_MOUNT_ERRORS_PANIC         0x00040 /* Panic on errors */
 #define EXT4_MOUNT_MINIX_DF             0x00080 /* Mimics the Minix statfs */
 #define EXT4_MOUNT_NOLOAD               0x00100 /* Don't use existing journal*/
-#define EXT4_MOUNT_ABORT                0x00200 /* Fatal error detected */
 #define EXT4_MOUNT_DATA_FLAGS           0x00C00 /* Mode for data writes: */
 #define EXT4_MOUNT_JOURNAL_DATA         0x00400 /* Write data to journal */
 #define EXT4_MOUNT_ORDERED_DATA         0x00800 /* Flush data before commit */
@@ -696,17 +705,10 @@ struct ext4_inode_info {
 #define EXT4_MOUNT_DATA_ERR_ABORT       0x10000000 /* Abort on file data write */
 #define EXT4_MOUNT_BLOCK_VALIDITY       0x20000000 /* Block validity checking */
 
-/* Compatibility, for having both ext2_fs.h and ext4_fs.h included at once */
-#ifndef _LINUX_EXT2_FS_H
 #define clear_opt(o, opt)               o &= ~EXT4_MOUNT_##opt
 #define set_opt(o, opt)                 o |= EXT4_MOUNT_##opt
 #define test_opt(sb, opt)               (EXT4_SB(sb)->s_mount_opt & \
                                          EXT4_MOUNT_##opt)
-#else
-#define EXT2_MOUNT_NOLOAD               EXT4_MOUNT_NOLOAD
-#define EXT2_MOUNT_ABORT                EXT4_MOUNT_ABORT
-#define EXT2_MOUNT_DATA_FLAGS           EXT4_MOUNT_DATA_FLAGS
-#endif
 
 #define ext4_set_bit                    ext2_set_bit
 #define ext4_set_bit_atomic             ext2_set_bit_atomic
@@ -824,6 +826,13 @@ struct ext4_super_block {
 };
 
 #ifdef __KERNEL__
+
+/*
+ * run-time mount flags
+ */
+#define EXT4_MF_MNTDIR_SAMPLED  0x0001
+#define EXT4_MF_FS_ABORTED      0x0002  /* Fatal error detected */
+
 /*
  * fourth extended-fs super-block data in memory
  */
@@ -842,7 +851,8 @@ struct ext4_sb_info {
         struct buffer_head * s_sbh;     /* Buffer containing the super block */
         struct ext4_super_block *s_es;  /* Pointer to the super block in the buffer */
         struct buffer_head **s_group_desc;
-        unsigned long  s_mount_opt;
+        unsigned int s_mount_opt;
+        unsigned int s_mount_flags;
         ext4_fsblk_t s_sb_block;
         uid_t s_resuid;
         gid_t s_resgid;
@@ -853,6 +863,7 @@ struct ext4_sb_info {
         int s_inode_size;
         int s_first_ino;
         unsigned int s_inode_readahead_blks;
+        unsigned int s_inode_goal;
         spinlock_t s_next_gen_lock;
         u32 s_next_generation;
         u32 s_hash_seed[4];
@@ -1305,7 +1316,8 @@ extern int ext4fs_dirhash(const char *name, int len, struct
                           dx_hash_info *hinfo);
 
 /* ialloc.c */
-extern struct inode * ext4_new_inode(handle_t *, struct inode *, int);
+extern struct inode *ext4_new_inode(handle_t *, struct inode *, int,
+                                    const struct qstr *qstr, __u32 goal);
 extern void ext4_free_inode(handle_t *, struct inode *);
 extern struct inode * ext4_orphan_get(struct super_block *, unsigned long);
 extern unsigned long ext4_count_free_inodes(struct super_block *);
@@ -1329,7 +1341,7 @@ 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 *,
-                unsigned long, unsigned long, int, unsigned long *);
+                ext4_fsblk_t, unsigned long, int, unsigned long *);
 extern int ext4_mb_add_groupinfo(struct super_block *sb,
                 ext4_group_t i, struct ext4_group_desc *desc);
 extern void ext4_mb_update_group_info(struct ext4_group_info *grp,
@@ -1647,6 +1659,11 @@ extern int ext4_get_blocks(handle_t *handle, struct inode *inode,
                            struct buffer_head *bh, int flags);
 extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                         __u64 start, __u64 len);
+/* move_extent.c */
+extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
+                             __u64 start_orig, __u64 start_donor,
+                             __u64 len, __u64 *moved_len);
+
 
 /*
  * Add new method to test wether block and inode bitmaps are properly