end_request(9)
NAME
end_request - end I/O on the current segment of the request
SYNOPSIS
void end_request(struct request * req, int uptodate);
ARGUMENTS
- req
- the request being processed
- uptodate
- error value or 0/1 uptodate flag
DESCRIPTION
Ends I/O on the current segment of a request. If that is the only
remaining segment, the request is also completed and freed.
This is a remnant of how older block drivers handled IO completions.
Modern drivers typically end IO on the full request in one go, unless
they have a residual value to account for. For that case this function
isnīt really useful, unless the residual just happens to be the full
current segment. In other words, donīt use this function in new code.
Either use end_request_completely, or the end_that_request_chunk (along
with end_that_request_last) for partial completions.