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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-02-22 17:36:25 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2013-03-11 13:32:01 +0100 |
| commit | 52e850dea988585c3d693fd9cd4a4c38968d89b8 (patch) | |
| tree | e5fe8eb730492bdb8ca258f2be35f3e8a5dfad8b /include/qemu/atomic.h | |
| parent | 323920c4eac01de74cf2b5e941c97ca9b2d36b7f (diff) | |
| download | focaccia-qemu-52e850dea988585c3d693fd9cd4a4c38968d89b8.tar.gz focaccia-qemu-52e850dea988585c3d693fd9cd4a4c38968d89b8.zip | |
block-migration: add lock
Some state is shared between the block migration code and its AIO callbacks. Once block migration will run outside the iothread, the block migration code and the AIO callbacks will be able to run concurrently. Protect the critical sections with a separate lock. Do the same for completed_sectors, which can be used from the monitor. Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'include/qemu/atomic.h')
| -rw-r--r-- | include/qemu/atomic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h index 96a194bbee..10becb6101 100644 --- a/include/qemu/atomic.h +++ b/include/qemu/atomic.h @@ -16,6 +16,7 @@ */ #define smp_wmb() barrier() #define smp_rmb() barrier() + /* * We use GCC builtin if it's available, as that can use * mfence on 32 bit as well, e.g. if built with -march=pentium-m. |