On Wed, 2012-05-09 at 08:03 +1000, Cameron Simpson wrote:
It's not that hard to save userspace in the kernel. Make SIGKILL
abort
the OS call and terminate the process. Have the kernel mark the I/O as
cancelled in whatever form is necessary for the subsystem in use.
Something like
http://lwn.net/Articles/288056/ but I'm not sure how far
that has gone (the article is nearly 4 years old).
poc