| commit | 6940fab84b826175cf90d48d0e3da1b76518f5b4 | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Wed, 12 Aug 2015 07:41:40 +0000 (12 09:41 +0200) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Wed, 9 Sep 2015 13:34:55 +0000 (9 15:34 +0200) | ||
| tree | 05d14ec8c28214f483dbbb7cc384b45a901153b5 | treesnapshot (tar.gz zip) |
| parent | 2496ff1311283480f9de3614080b8842d838ade4 | commitdiff |
tcg: add memory barriers in page_find_alloc accesses
page_find is reading the radix tree outside all locks, so it has to
use the RCU primitives. It does not need RCU critical sections
because the PageDescs are never removed, so there is never a need
to wait for the end of code sections that use a PageDesc.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
page_find is reading the radix tree outside all locks, so it has to
use the RCU primitives. It does not need RCU critical sections
because the PageDescs are never removed, so there is never a need
to wait for the end of code sections that use a PageDesc.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| translate-all.c | diffblobblamehistory |