On Tue, Mar 18, 2025 at 03:26:10PM +0100, Mikulas Patocka wrote: > The block limits may be read while they are being modified. The statement > "q->limits = *lim" is not really atomic. The compiler may turn it into > memcpy (clang does). And that is intentional. > This commit changes it to use WRITE_ONCE, so that individual words are > updated atomically. You fail to explain why the intentended non-atomic semantics are a problem. Note: it usually helps to Cc the other of the commit you suspect is broken if you want a quick resolution.
