Torvald Riegel 1aa8d144f9 Clean up semaphore EINTR handling after Linux futex docs clarification. ...

The Linux kernel futex documentation now states that since Linux 2.6.22,
FUTEX_WAIT does return EINTR only when interrupted by a signal, and not
spuriously anymore.  We only support more recent kernels, so clean up
EINTR handling in the semaphore and update the comments.

2015-07-10 13:47:45 +02:00

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