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authorPeter Maydell <peter.maydell@linaro.org>2017-02-21 11:58:03 +0000
committerPeter Maydell <peter.maydell@linaro.org>2017-02-21 11:58:03 +0000
commita0775e28cd6cae7eae248f74db7bc4a03da20c6b (patch)
tree6d141e7710855c40fdaf81a4c2731995782e443c /nbd/common.c
parentb856256179f14c33a513d0b9cc3e4be355b95f43 (diff)
parenta7b91d35bab97a2d3e779d0c64c9b837b52a6cf7 (diff)
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Pull request v2: * Rebased to resolve scsi conflicts # gpg: Signature made Tue 21 Feb 2017 11:56:24 GMT # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: (24 commits) coroutine-lock: make CoRwlock thread-safe and fair coroutine-lock: add mutex argument to CoQueue APIs coroutine-lock: place CoMutex before CoQueue in header test-aio-multithread: add performance comparison with thread-based mutexes coroutine-lock: add limited spinning to CoMutex coroutine-lock: make CoMutex thread-safe block: document fields protected by AioContext lock async: remove unnecessary inc/dec pairs aio-posix: partially inline aio_dispatch into aio_poll block: explicitly acquire aiocontext in aio callbacks that need it block: explicitly acquire aiocontext in bottom halves that need it block: explicitly acquire aiocontext in callbacks that need it block: explicitly acquire aiocontext in timers that need it aio: push aio_context_acquire/release down to dispatching qed: introduce qed_aio_start_io and qed_aio_next_io_cb blkdebug: reschedule coroutine on the AioContext it is running on coroutine-lock: reschedule coroutine on the AioContext it was running on nbd: convert to use qio_channel_yield io: make qio_channel_yield aware of AioContexts io: add methods to set I/O handlers on AioContext ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'nbd/common.c')
-rw-r--r--nbd/common.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/nbd/common.c b/nbd/common.c
index a5f39ea58e..dccbb8e9de 100644
--- a/nbd/common.c
+++ b/nbd/common.c
@@ -43,14 +43,7 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
}
if (len == QIO_CHANNEL_ERR_BLOCK) {
if (qemu_in_coroutine()) {
- /* XXX figure out if we can create a variant on
- * qio_channel_yield() that works with AIO contexts
- * and consider using that in this branch */
- qemu_coroutine_yield();
- } else if (done) {
- /* XXX this is needed by nbd_reply_ready. */
- qio_channel_wait(ioc,
- do_read ? G_IO_IN : G_IO_OUT);
+ qio_channel_yield(ioc, do_read ? G_IO_IN : G_IO_OUT);
} else {
return -EAGAIN;
}