diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-04-07 18:33:34 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2016-05-12 15:22:07 +0200 |
| commit | 6b98bd649520d07df4d1b7a0a54ac73bf178519c (patch) | |
| tree | 22924e241859dcc57d55fdb1d71c8f4220313633 /README | |
| parent | ce0f141259f06fd77fde2519cc352618ad797ce2 (diff) | |
block: plug whole tree at once, introduce bdrv_io_unplugged_begin/end
Extract the handling of io_plug "depth" from linux-aio.c and let the
main bdrv_drain loop do nothing but wait on I/O.
Like the two newly introduced functions, bdrv_io_plug and bdrv_io_unplug
now operate on all children. The visit order is now symmetrical between
plug and unplug, making it possible for formats to implement plug/unplug.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions