Re: [PATCH 5.10 091/132] Documentation/locking/locktypes: Update migrate_disable() bits.

Hi!

From: Sebastian Andrzej Siewior bigeasy@linutronix.de

commit 6a631c0432dcccbcf45839016a07c015e335e9ae upstream.

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: 74d862b682f51 ("sched: Make migrate_disable/enable() independent of RT")

AFAICT this commit is not present in 5.10... so this breaks documentation, rather than improving it. (And should be reverted from 5.10).

Best regards, Pavel