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memory-barriers: Fix description of data dependency barriers 

In the description of data dependency barriers the words 'before' is
used erroneously. Since such barrier order dependent loads one after
the other. So substitute 'before' with 'after'.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akiyks@gmail.com
Cc: boqun.feng@gmail.com
Cc: dhowells@redhat.com
Cc: j.alglave@ucl.ac.uk
Cc: linux-arch@vger.kernel.org
Cc: luc.maranget@inria.fr
Cc: npiggin@gmail.com
Cc: parri.andrea@gmail.com
Cc: stern@rowland.harvard.edu
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1519169112-20593-8-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Nikolay Borisov 2018-02-20 15:25:08 -08:00 committed by Ingo Molnar
parent 621df431b0
commit 51de78892b
1 changed files with 1 additions and 1 deletions
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Documentation/memory-barriers.txt
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@ -403,7 +403,7 @@ Memory barriers come in four basic varieties:
where two loads are performed such that the second depends on the result where two loads are performed such that the second depends on the result
of the first (eg: the first load retrieves the address to which the second of the first (eg: the first load retrieves the address to which the second
load will be directed), a data dependency barrier would be required to load will be directed), a data dependency barrier would be required to
make sure that the target of the second load is updated before the address make sure that the target of the second load is updated after the address
obtained by the first load is accessed. obtained by the first load is accessed.
A data dependency barrier is a partial ordering on interdependent loads A data dependency barrier is a partial ordering on interdependent loads