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6a631c0432
The initial implementation of migrate_disable() for mainline was a
wrapper around preempt_disable(). RT kernels substituted this with
a real migrate disable implementation.
Later on mainline gained true migrate disable support, but the
documentation was not updated.
Update the documentation, remove the claims about migrate_disable()
mapping to preempt_disable() on non-PREEMPT_RT kernels.
Fixes:
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|---|---|---|
| .. | ||
| futex-requeue-pi.rst | ||
| hwspinlock.rst | ||
| index.rst | ||
| lockdep-design.rst | ||
| lockstat.rst | ||
| locktorture.rst | ||
| locktypes.rst | ||
| mutex-design.rst | ||
| percpu-rw-semaphore.rst | ||
| pi-futex.rst | ||
| preempt-locking.rst | ||
| robust-futex-ABI.rst | ||
| robust-futexes.rst | ||
| rt-mutex-design.rst | ||
| rt-mutex.rst | ||
| seqlock.rst | ||
| spinlocks.rst | ||
| ww-mutex-design.rst | ||