do_generic_mapping_r(9)
NAME
do_generic_mapping_read - generic file read routine
SYNOPSIS
void do_generic_mapping_read(struct address_space * mapping, struct file_ra_state * _ra, struct file * filp, loff_t * ppos, read_descriptor_t * desc, read_actor_t actor);
ARGUMENTS
- mapping
- address_space to be read
- _ra
- file's readahead state
- filp
- the file to read
- ppos
- current file position
- desc
- read_descriptor
- actor
- read method
DESCRIPTION
- This is a generic file read routine, and uses the map
- ping->a_ops->readpage function for the actual low-level stuff.
- This is really ugly. But the goto's actually try to clari
- fy some of the logic when it comes to error handling etc.
- Note the struct file* is only passed for the use of read
- page. It may be NULL.