Messages in this thread | | | From | Sebastian Andrzej Siewior <> | Subject | [PATCH v2 0/8] Replace PREEMPT_RT ifdefs with preempt_[dis|en]able_nested(). | Date | Thu, 25 Aug 2022 18:41:23 +0200 |
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Folks,
this is v2 of "Replace PREEMPT_RT ifdefs with preempt_[dis|en]able_nested()." The v1 is at https://lore.kernel.org/all/20220817162703.728679-1-bigeasy@linutronix.de/
v1…v2: - The SLUB patch got s/use_lockless_fast_path/USE_LOCKLESS_FAST_PATH/ as Linus asked for and was handed over to Vlastimil and is sitting in his slab tree: https://git.kernel.org/vbabka/slab/c/591570a7
- The compaction patch got an "depends on COMPACTION" so it is not listed .config if compaction is disabled (Rasmus Villemoes).
- The removal of u64_stats_fetch_begin_irq() has been excluded from the series and staged for later. Jakub asked for this, so that it can be included in later merge window.
- A patch for flex_proportions has been added which also needs a preempt_disable_nested() since the merge window.
Original cover letter:
this is the follow up to the "vfs.git pile 3 - dcache" pull request [0]. It was concluded that the introduction of preempt_disable_nested()
in general makes sense and should be used in places where preemption on !RT is disabled by other means and PREEMPT_RT need to explicitly disable it.
This series introduces the macro and converts already existing users to that macro. The u64_stat interface was simplified to make the change simpler and code easier to follow.
[0] https://lore.kernel.org/all/YurA3aSb4GRr4wlW@ZenIV/
Sebastian
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