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Avoid IPI-ing a task in certain cases and prevent load/store tearing

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when accessing a task's resctrl fields concurrently.
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Merge tag 'x86_cache_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 resource control updates from Borislav Petkov:
 "Avoid IPI-ing a task in certain cases and prevent load/store tearing
  when accessing a task's resctrl fields concurrently"

* tag 'x86_cache_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Apply READ_ONCE/WRITE_ONCE to task_struct.{rmid,closid}
  x86/resctrl: Use task_curr() instead of task_struct->on_cpu to prevent unnecessary IPI
  x86/resctrl: Add printf attribute to log function
This commit is contained in:
Linus Torvalds 2021-02-20 20:39:04 -08:00
commit b0fb29382d
3 changed files with 18 additions and 18 deletions
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