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Date: Fri, 30 Sep 2022 19:27:29 +0900 From: Sergey Senozhatsky <senozhatsky@...omium.org> To: Sebastian Andrzej Siewior <bigeasy@...utronix.de> Cc: linux-kernel@...r.kernel.org, Theodore Ts'o <tytso@....edu>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, "Jason A . Donenfeld " <Jason@...c4.com>, John Ogness <john.ogness@...utronix.de>, Mike Galbraith <efault@....de>, Peter Zijlstra <peterz@...radead.org>, Petr Mladek <pmladek@...e.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, Sergey Senozhatsky <senozhatsky@...omium.org>, Steven Rostedt <rostedt@...dmis.org>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [PATCH v4 1/2] lib/vsprintf: Remove static_branch_likely() from __ptr_to_hashval(). On (22/09/27 12:49), Sebastian Andrzej Siewior wrote: > Using static_branch_likely() to signal that ptr_key has been filled is a > bit much given that it is not a fast path. > > Replace static_branch_likely() with bool for condition and a memory > barrier for ptr_key. > > Suggested-by: Petr Mladek <pmladek@...e.com> > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de> Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>
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