Conversation
vbabka

Vlastimil Babka

STOP DOING LOCKS

- CPUS WERE NOT SUPPOSED TO BE WAITING IN VAIN

- YEARS OF SPINNING yet NO REAL-USE FOUND for mutual exclusion and critical SECTIONS

- Wanted to protect from races anyway for a laugh? We had a tool for that. It was called "IRQ DISABLE".

- "Yes please let me SPIN optimistically for a while. Please let me SLEEP now instead." - Statements dreamed up by the utterly Deranged

LOOK at what the Kernel Developers have been demanding your Respect for all this time, with all the local_locks and rt-mutexes we built for them
(This is REAL Code, done by REAL Developers)

- pcp_spin_trylock_irqsave() - ?????
- if (USE_LOCKLESS_FAST_PATH()) lockdep_assert_irqs_disabled();???????
- lockdep_assert_held(this_cpu_ptr(&s->cpu_slab->lock)) ?????????????????

"Hello I would like this_cpu_try_cmpxchg128(&apples) please"

They have played us for absolute fools.
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vbabka

Vlastimil Babka

Reply to @vbabka
Thanks to @ljs for the inspiration https://social.kernel.org/notice/Aek8J2xNeWFJ2nVqCm
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vbabka

Vlastimil Babka

Reply to
@wagi yeah it's an obnoxious micromanagement. Just trust everyone to know their lifetime.
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oleksandr@natalenko.name

Oleksandr Natalenko

Reply to @vbabka

@vbabka consider doing some merch with this

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