diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2014-05-08 16:34:47 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-06-04 09:56:11 +0200 |
| commit | c2f3426c9bba0195b15a919587f794b110a2dcfc (patch) | |
| tree | 8d3925475b69cbf07749e59a813288cd9b5e0276 /block/linux-aio.c | |
| parent | e3625d3d6ae8029fc20262ac3848421ec281446f (diff) | |
block/raw-posix: implement .bdrv_detach/attach_aio_context()
Drop the assumption that we're using the main AioContext for Linux AIO.
Convert the Linux AIO event notifier to use aio_set_event_notifier().
The .bdrv_detach/attach_aio_context() interfaces also need to be
implemented to move the event notifier handler from the old to the new
AioContext.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/linux-aio.c')
| -rw-r--r-- | block/linux-aio.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/block/linux-aio.c b/block/linux-aio.c index 53434e2df5..7ff3897fec 100644 --- a/block/linux-aio.c +++ b/block/linux-aio.c @@ -177,6 +177,20 @@ out_free_aiocb: return NULL; } +void laio_detach_aio_context(void *s_, AioContext *old_context) +{ + struct qemu_laio_state *s = s_; + + aio_set_event_notifier(old_context, &s->e, NULL); +} + +void laio_attach_aio_context(void *s_, AioContext *new_context) +{ + struct qemu_laio_state *s = s_; + + aio_set_event_notifier(new_context, &s->e, qemu_laio_completion_cb); +} + void *laio_init(void) { struct qemu_laio_state *s; @@ -190,8 +204,6 @@ void *laio_init(void) goto out_close_efd; } - qemu_aio_set_event_notifier(&s->e, qemu_laio_completion_cb); - return s; out_close_efd: |