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-rw-r--r--fs/ext4/ext4.h22
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a58438e18d0b..2b4293aac162 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -128,6 +128,15 @@ struct mpage_da_data {
128 int retval; 128 int retval;
129}; 129};
130 130
131typedef struct ext4_io_end {
132 struct inode *inode; /* file being written to */
133 unsigned int flag; /* sync IO or AIO */
134 int error; /* I/O error code */
135 ext4_lblk_t offset; /* offset in the file */
136 size_t size; /* size of the extent */
137 struct work_struct work; /* data work queue */
138} ext4_io_end_t;
139
131/* 140/*
132 * Special inodes numbers 141 * Special inodes numbers
133 */ 142 */
@@ -347,7 +356,16 @@ struct ext4_new_group_data {
347 /* Call ext4_da_update_reserve_space() after successfully 356 /* Call ext4_da_update_reserve_space() after successfully
348 allocating the blocks */ 357 allocating the blocks */
349#define EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE 0x0008 358#define EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE 0x0008
350 359 /* caller is from the direct IO path, request to creation of an
360 unitialized extents if not allocated, split the uninitialized
361 extent if blocks has been preallocated already*/
362#define EXT4_GET_BLOCKS_DIO 0x0010
363#define EXT4_GET_BLOCKS_CONVERT 0x0020
364#define EXT4_GET_BLOCKS_DIO_CREATE_EXT (EXT4_GET_BLOCKS_DIO|\
365 EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
366 /* Convert extent to initialized after direct IO complete */
367#define EXT4_GET_BLOCKS_DIO_CONVERT_EXT (EXT4_GET_BLOCKS_CONVERT|\
368 EXT4_GET_BLOCKS_DIO_CREATE_EXT)
351 369
352/* 370/*
353 * ioctl commands 371 * ioctl commands
@@ -1700,6 +1718,8 @@ extern void ext4_ext_init(struct super_block *);
1700extern void ext4_ext_release(struct super_block *); 1718extern void ext4_ext_release(struct super_block *);
1701extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset, 1719extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
1702 loff_t len); 1720 loff_t len);
1721extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
1722 loff_t len);
1703extern int ext4_get_blocks(handle_t *handle, struct inode *inode, 1723extern int ext4_get_blocks(handle_t *handle, struct inode *inode,
1704 sector_t block, unsigned int max_blocks, 1724 sector_t block, unsigned int max_blocks,
1705 struct buffer_head *bh, int flags); 1725 struct buffer_head *bh, int flags);