Thread (28 messages) 28 messages, 4 authors, 2019-07-17

Re: [PATCH v3 3/5] locking/qspinlock: Introduce CNA into the slow path of qspinlock

From: Peter Zijlstra <peterz@infradead.org>
Date: 2019-07-16 11:05:41
Also in: linux-arch, lkml

On Mon, Jul 15, 2019 at 03:25:34PM -0400, Alex Kogan wrote:
+/**
+ * find_successor - Scan the main waiting queue looking for the first
+ * thread running on the same node as the lock holder. If found (call it
+ * thread T), move all threads in the main queue between the lock holder
+ * and T to the end of the secondary queue and return T; otherwise, return NULL.
+ */
+static struct cna_node *find_successor(struct mcs_spinlock *me)
Either don't use a kernel doc comment, but if you must, you have to
stick to their format, otherwise we'll get endless stupid patches fixing
up the stupid comment.

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