Re: [PATCH] ring-buffer: Fix a race in rb_time_cmpxchg() for 32 bit archs

On 2023-12-12 11:53, Steven Rostedt wrote: From: "Steven Rostedt (Google)" Mathieu Desnoyers pointed out an issue in the rb_time_cmpxchg() for 32 bit architectures. That is: static bool rb_time_cmpxchg(rb_time_t *t, u64 expect, u64 set) { unsigned long cnt, top, bottom, msb;

[PATCH] ring-buffer: Fix a race in rb_time_cmpxchg() for 32 bit archs

From: "Steven Rostedt (Google)" Mathieu Desnoyers pointed out an issue in the rb_time_cmpxchg() for 32 bit architectures. That is: static bool rb_time_cmpxchg(rb_time_t *t, u64 expect, u64 set) { unsigned long cnt, top, bottom, msb; unsigned long cnt2, top2, bottom2, msb2;