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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2016-01-15 18:30:42 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2016-03-14 23:52:18 +0100 |
| commit | c535cc92924baf68e238bd1b5ff8d74883f88b9b (patch) | |
| tree | 7659bf6bc6c43ba024700015f89a4b7b77b3b758 /Kbuild | |
| parent | documentation: Subsequent writes ordered by rcu_dereference() (diff) | |
| download | linux-c535cc92924baf68e238bd1b5ff8d74883f88b9b.tar.xz linux-c535cc92924baf68e238bd1b5ff8d74883f88b9b.zip | |
documentation: Distinguish between local and global transitivity
The introduction of smp_load_acquire() and smp_store_release() had
the side effect of introducing a weaker notion of transitivity:
The transitivity of full smp_mb() barriers is global, but that
of smp_store_release()/smp_load_acquire() chains is local. This
commit therefore introduces the notion of local transitivity and
gives an example.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions