Messages in this thread | | | Date | Mon, 14 Jun 1999 20:08:36 +0200 (CEST) | From | Arjan van de Ven <> | Subject | Non-blocking read |
| |
Hi,
I want to do a non-blocking read from a file, from within the kernel. Is this, at all, possible? I have been tracing how userspace does this, but the userspace does not seem to be non-blocking either.
What I'd expect is this:
* non-blocking read is issued * if the pages are in the pagecache, they are copied to my buffer * if they are not, an asynchronous read-ahead is issued and the read-funtion returns -EAGAIN
By looking at the code (2.3.6), there seems to be no possibility to do this. Am I wrong or is it not worth the effort (I might disagree) or just impossible?
Greetings, Arjan van de Ven
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |