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| author |   Mark Rutland <mark.rutland@arm.com> | 2018-07-16 11:05:56 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-07-17 09:29:34 +0200 |
| commit | 5bde06b63af2af8c2326270aae041067eef89245 (patch) | |
| tree | 359c10b2071600c9adb71f2d4863560f4a1e599b /tools/memory-model | |
| parent | locking/memory-barriers.txt/kokr: Update Korean translation to fix broken DMA vs. MMIO ordering example (diff) | |
| download | linux-dev-5bde06b63af2af8c2326270aae041067eef89245.tar.xz linux-dev-5bde06b63af2af8c2326270aae041067eef89245.zip | |
tools/memory-model: Remove ACCESS_ONCE() from recipes
Since commit:
b899a850431e2dd0 ("compiler.h: Remove ACCESS_ONCE()")
... there has been no definition of ACCESS_ONCE() in the kernel tree,
and it has been necessary to use READ_ONCE() or WRITE_ONCE() instead.
Let's update the exmaples in recipes.txt likewise for consistency, using
READ_ONCE() for reads.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Cc: Akira Yokosawa <akiyks@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jade Alglave <j.alglave@ucl.ac.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luc Maranget <luc.maranget@inria.fr>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arch@vger.kernel.org
Cc: parri.andrea@gmail.com
Link: http://lkml.kernel.org/r/20180716180605.16115-5-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/memory-model')
| -rw-r--r-- | tools/memory-model/Documentation/recipes.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/memory-model/Documentation/recipes.txt b/tools/memory-model/Documentation/recipes.txt index ee4309a87fc4..1fea8ef2b184 100644 --- a/tools/memory-model/Documentation/recipes.txt +++ b/tools/memory-model/Documentation/recipes.txt @@ -322,9 +322,9 @@ the following write-side code fragment: And the xlog_valid_lsn() function in fs/xfs/xfs_log_priv.h contains the corresponding read-side code fragment: - cur_cycle = ACCESS_ONCE(log->l_curr_cycle); + cur_cycle = READ_ONCE(log->l_curr_cycle); smp_rmb(); - cur_block = ACCESS_ONCE(log->l_curr_block); + cur_block = READ_ONCE(log->l_curr_block); Alternatively, consider the following comment in function perf_output_put_handle() in kernel/events/ring_buffer.c: |