Function report | 
Source Code:mm\filemap.c | 
Create Date:2022-07-28 14:01:04 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:lemap_write_and_wait_range - write out & wait on a file range*@mapping: the address_space for the pages*@lstart: offset in bytes where the range starts*@lend: offset in bytes where the range ends (inclusive)
Proto:int filemap_write_and_wait_range(struct address_space *mapping, loff_t lstart, loff_t lend)
Type:int
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct address_space * | mapping | |
| loff_t | lstart | |
| loff_t | lend | 
| 678 | err = 0 | 
| 689 | Else | 
| 693 | Else | 
| 694 | err = filemap_check_errors(mapping) | 
| 696 | Return err | 
| Name | Describe | 
|---|---|
| generic_file_read_iter | generic_file_read_iter - generic filesystem read routine*@iocb: kernel I/O control block*@iter: destination for the data read* This is the "read_iter()" routine for all filesystems* that can use the page cache directly | 
| generic_file_direct_write | |
| __generic_file_write_iter | __generic_file_write_iter - write data to a file*@iocb: IO state structure (file, offset, etc.)*@from: iov_iter with data to write* This function does all the work needed for actually writing data to a* file | 
| generic_remap_file_range_prep | Check that the two inodes are eligible for cloning, the ranges make* sense, and then flush all dirty data. Caller must ensure that the* inodes have been locked against any other modifications. | 
| do_blockdev_direct_IO | This is a library function for use by filesystem drivers | 
| iomap_dio_rw | map_dio_rw() always completes O_[D]SYNC writes regardless of whether the IO* is being issued as AIO or not. This allows us to optimise pure data writes* to use REQ_FUA rather than requiring generic_write_sync() to issue a* REQ_FLUSH post write | 
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