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futex.2: ERRORS: add ENOSYS case for FUTEX_WAIT_REQUEUE_PI
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -1129,7 +1129,8 @@ nor
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.RB ( FUTEX_LOCK_PI ,
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.BR FUTEX_TRYLOCK_PI ,
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.BR FUTEX_UNLOCK_PI ,
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.BR FUTEX_CMP_REQUEUE_PI )
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.BR FUTEX_CMP_REQUEUE_PI
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.BR FUTEX_WAIT_REQUEUE_PI )
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A run-time check determined that the operation not available.
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The PI futex operations are not implemented on all architectures and
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are not supported on some CPU variants.
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