Commit-ID: 2f359c7ea554ba9cb78a52c82bedff351cdabd2b Gitweb: https://git.kernel.org/tip/2f359c7ea554ba9cb78a52c82bedff351cdabd2b Author: Andrea Parri <andrea.parri@xxxxxxxxxxxxxxxxxxxx> AuthorDate: Wed, 26 Sep 2018 11:29:20 -0700 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Tue, 2 Oct 2018 10:28:05 +0200 locking/memory-barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() Amend the changes in commit: 1f03e8d2919270 ("locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire()") ... by updating the documentation accordingly. Also remove some obsolete information related to the implementation. Signed-off-by: Andrea Parri <andrea.parri@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> Acked-by: Will Deacon <will.deacon@xxxxxxx> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Cc: Akira Yokosawa <akiyks@xxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Boqun Feng <boqun.feng@xxxxxxxxx> Cc: Daniel Lustig <dlustig@xxxxxxxxxx> Cc: David Howells <dhowells@xxxxxxxxxx> Cc: Jade Alglave <j.alglave@xxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Luc Maranget <luc.maranget@xxxxxxxx> Cc: Nicholas Piggin <npiggin@xxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Vince Weaver <vincent.weaver@xxxxxxxxx> Cc: linux-arch@xxxxxxxxxxxxxxx Cc: parri.andrea@xxxxxxxxx Link: http://lkml.kernel.org/r/20180926182920.27644-5-paulmck@xxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- Documentation/memory-barriers.txt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index 0d8d7ef131e9..c1d913944ad8 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -471,8 +471,7 @@ And a couple of implicit varieties: operations after the ACQUIRE operation will appear to happen after the ACQUIRE operation with respect to the other components of the system. ACQUIRE operations include LOCK operations and both smp_load_acquire() - and smp_cond_acquire() operations. The later builds the necessary ACQUIRE - semantics from relying on a control dependency and smp_rmb(). + and smp_cond_load_acquire() operations. Memory operations that occur before an ACQUIRE operation may appear to happen after it completes.
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