On Sat, Jan 25, 2003 at 07:04:10PM -0800, Andrew Morton wrote:
+static inline unsigned fr_write_begin(frlock_t *rw)
+{
+ unsigned ret = rw->pre_sequence++;
+ wmb();
+ return ret;
+}
+
+static inline unsigned fr_write_end(frlock_t *rw)
+{
+ unsgned ret;
+ wmb();
+ ret = ++(rw->post_sequence);
+ wmb();
+ return ret;
+}
Ticket locks need atomic fetch and increment. These don't look right.
-- wli
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