Linus Torvalds writes: (Summary)
Good point, but I think that was actually a mis-feature of the old
"__flush_tlb_up()" implementation that Andy got rid of in commit
ce4a4e565f52 ("x86/mm: Remove the UP asm/tlbflush.h code, always use
the (formerly) SMP code").
the (formerly) SMP code").
So the code sequence that that commit talks about no longer exists. But adding a
WARN_ON_ONCE(preemptible());
WARN_ON_ONCE(preemptible());
might still be a good idea.
might still be a good idea.
Linus
Linus
Linus
the (formerly) SMP code").
So the code sequence that that commit talks about no longer exists. But adding a
WARN_ON_ONCE(preemptible());
WARN_ON_ONCE(preemptible());
might still be a good idea.
might still be a good idea.
Linus
Linus
Linus
