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    Subject[PATCH] Remove bogus WARN_ON in futex_wait

    futex_wait goes to an interruptible sleep, but does a WARN_ON later
    if it wakes up early. But waking up early is totally legal, since
    the sleep is interruptible and any signal can wake it up.

    Remove the WARN_ON checking for that.

    diff -u linux/kernel/Makefile-o linux/kernel/Makefile
    diff -u linux/kernel/futex.c-o linux/kernel/futex.c
    --- linux/kernel/futex.c-o 2004-03-21 21:12:13.000000000 +0100
    +++ linux/kernel/futex.c 2004-05-19 10:01:02.000000000 +0200
    @@ -504,8 +504,6 @@
    return 0;
    if (time == 0)
    return -ETIMEDOUT;
    - /* A spurious wakeup should never happen. */
    - WARN_ON(!signal_pending(current));
    return -EINTR;

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      Last update: 2005-03-22 14:03    [W:0.018 / U:51.468 seconds]
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