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[Qemu-devel] [PATCH 1/2] Fix vectored aio bounce handling immediate erro
From: |
Avi Kivity |
Subject: |
[Qemu-devel] [PATCH 1/2] Fix vectored aio bounce handling immediate errors |
Date: |
Fri, 27 Mar 2009 16:30:29 +0300 |
If a bounced vectored aio fails immediately (the inner aio submission
returning NULL) then the bounce handler erronously returns an aio
request which will never be completed (and which crashes when cancelled).
Fix by detecting that the inner request has failed and propagating the
error.
Signed-off-by: Avi Kivity <address@hidden>
---
block.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index fd09dff..6479072 100644
--- a/block.c
+++ b/block.c
@@ -1306,6 +1306,11 @@ static BlockDriverAIOCB
*bdrv_aio_rw_vector(BlockDriverState *bs,
s->aiocb = bdrv_aio_read(bs, sector_num, s->bounce, nb_sectors,
bdrv_aio_rw_vector_cb, s);
}
+ if (!s->aiocb) {
+ qemu_vfree(s->bounce);
+ qemu_aio_release(s);
+ return NULL;
+ }
return &s->common;
}
--
1.6.1.1