RFC b.L: Memory barriers and miscellaneous tidyups
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Cover letter [RFC PATCH 0/4] b.L: Memory barriers and miscellaneous tidyups
Quoted 6 lines · Nicolas Pitre
Quoted 4 lines · Dave Martin
After much head-scratching and discussion, I have concluded that we need comprehensive memory barriers in order to ensure that the low-level synchronisation code executes robustly on all platforms.
Quoted 8 lines
Quoted 5 lines
DSBs are excessive on most situations though, so many DSBs can be replces with DMBs.
As was observed in review, providing a C interface to the vlocks makes little sense, so this series gets rid of it.
Thanks. I have already removed the C stuff in my version but I'll merge the rest no problem.
OK, I wasn't sure whether you'd already done that, but figured the patch would be trivial to throw away (it's not like I invested a lot of time in that one!)
I've done my best with the barriers, but if you have any concerns about correctness, let me know.
Cheers
---Dave