On Sat, 2003-02-22 at 22:38, Keith Whitwell wrote:
> Running into a problem when killing glthreads with Ctrl-C. Normally this
> would invoke the release() method and clean up buffers, locks etc.
> Unfortunately this doesn't work so well with threads - the release method is
> being called only once despite the 3 processes (threads) that are being
> killed. Unfortunately the drm module makes use of current->pid extensively,
> so it really expects each thread to invoke a release() call.
This was discussed here a while ago, and fixed in the kernel DRM for DRM 4.2
at least. There are two methods that matter here
->flush is called each time close() occurs
->release is called on the final close and disposal of a file
So you get
open ->open
close ->flush, ->release
open ->open
fork
close ->flush
close ->flush. ->release
Alan
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