[ovs-dev] ovs-atomic: loss some patches for v2.3.2

linhaifeng haifeng.lin at huawei.com
Sun Oct 11 09:32:07 UTC 2015


Hi,

I found the function atomic_store_explicit and atomic_read_explicit for
branch v2.3.2 not use volatile this cause some problems in multi-core
system.

should we merge these pathes to branch v2.3.2?

git log for branch v2.3.2:
8917f72 ovs-atomic: Delete atomic, atomic_flag, ovs_refcount destroy
functions.
6a36690 ovs-atomic-types: Move into ovs-atomic.h.
1bd2c9e ovs-atomic: Use raw types, not structs, when locks are required.
f5de851 ovs-atomic-gcc4+: Fix parenthesization in atomic_read_explicit().
c5f81b2 ovs-atomic: Add atomic_destroy() and use everywhere it is needed.
4597d2a ovs-atomic: New functions atomic_flag_init(), atomic_flag_destroy().
db5a101 clang: Fix the alignment warning.
31a3fc6 ovs-atomic: New library for atomic operations.

git log for master:
0b83904 lib/ovs-atomic: Add missing macro argument parentheses.
860f83f lib/ovs-atomic-gcc4+: Use 'volatile' to enforce memory access.
9164558 ovs-atomic: Fix GCC4+ atomic_flag.
15ba057 lib/ovs-atomic: Require memory_order be constant.
3e0b991 ovs-atomic: Avoid evaluating arguments multiple times.
25045d7 lib/ovs-atomic: Add atomic compare_exchange.

8917f72 ovs-atomic: Delete atomic, atomic_flag, ovs_refcount destroy
functions.
6a36690 ovs-atomic-types: Move into ovs-atomic.h.
1bd2c9e ovs-atomic: Use raw types, not structs, when locks are required.
f5de851 ovs-atomic-gcc4+: Fix parenthesization in atomic_read_explicit().
c5f81b2 ovs-atomic: Add atomic_destroy() and use everywhere it is needed.
4597d2a ovs-atomic: New functions atomic_flag_init(), atomic_flag_destroy().
db5a101 clang: Fix the alignment warning.
31a3fc6 ovs-atomic: New library for atomic operations.







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