From: Elena Reshetova <elena.reshetova@intel.com>
To: peterz@infradead.org
Cc: linux-kernel@vger.kernel.org, dvyukov@google.com,
andrea.parri@amarulasolutions.com, stern@rowland.harvard.edu,
keescook@chromium.org,
Elena Reshetova <elena.reshetova@intel.com>
Subject: [PATCH v2] Adding smp_acquire__after_ctrl_dep barrier
Date: Wed, 30 Jan 2019 13:18:50 +0200 [thread overview]
Message-ID: <1548847131-27854-1-git-send-email-elena.reshetova@intel.com> (raw)
Changes in v2:
- hopefully fixed all (at least to my eye and to checkpatch)
errors on whitespacing, etc.
- changed text on ACQUIRE guarantees pointed by Andrea and
Dmitry
- removed mentioning of control dependency on dec/sub_and_test
variants
I also have to send it now with a cover letter, because I think
it is Intel mailer that malformed the patch last time for god knows
what reason...
Elena Reshetova (1):
refcount_t: add ACQUIRE ordering on success for dec(sub)_and_test
variants
Documentation/core-api/refcount-vs-atomic.rst | 24 +++++++++++++++++++++---
arch/x86/include/asm/refcount.h | 22 ++++++++++++++++++----
lib/refcount.c | 18 +++++++++++++-----
3 files changed, 52 insertions(+), 12 deletions(-)
--
2.7.4
next reply other threads:[~2019-01-30 11:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-30 11:18 Elena Reshetova [this message]
2019-01-30 11:18 ` [PATCH] refcount_t: add ACQUIRE ordering on success for dec(sub)_and_test variants Elena Reshetova
2019-01-30 12:31 ` Andrea Parri
2019-01-30 14:21 ` Peter Zijlstra
2019-02-04 8:59 ` [tip:locking/core] refcount_t: Add ACQUIRE ordering on success for dec(sub)_and_test() variants tip-bot for Elena Reshetova
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