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| author | Paolo Bonzini <pbonzini@redhat.com> | 2011-10-20 13:16:22 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-10-21 17:34:14 +0200 |
| commit | 2914caa088e3fbbdbfd73106af0cae49af1d472e (patch) | |
| tree | 07d3de39e3839400dd903e53c3a86e5224c58def /target-m68k | |
| parent | 848c66e8f5b631961580f7f010a5831430dc84c2 (diff) | |
| download | qemu-2914caa088e3fbbdbfd73106af0cae49af1d472e.tar.gz qemu-2914caa088e3fbbdbfd73106af0cae49af1d472e.tar.bz2 qemu-2914caa088e3fbbdbfd73106af0cae49af1d472e.zip | |
block: take lock around bdrv_read implementations
This does the first part of the conversion to coroutines, by
wrapping bdrv_read implementations to take the mutex.
Drivers that implement bdrv_read rather than bdrv_co_readv can
then benefit from asynchronous operation (at least if the underlying
protocol supports it, which is not the case for raw-win32), even
though they still operate with a bounce buffer.
raw-win32 does not need the lock, because it cannot yield.
nbd also doesn't probably, but better be safe.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'target-m68k')
0 files changed, 0 insertions, 0 deletions