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iscsi: ignore flushes on scsi-generic devices
author
Paolo Bonzini
<pbonzini@redhat.com>
Wed, 2 Apr 2014 13:04:41 +0000
(15:04 +0200)
committer
Paolo Bonzini
<pbonzini@redhat.com>
Thu, 3 Apr 2014 11:10:45 +0000
(13:10 +0200)
Non-block SCSI devices do not support flushing, but we may still send
them requests via bdrv_flush_all. Just ignore them.
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
block/iscsi.c
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diff --git
a/block/iscsi.c
b/block/iscsi.c
index 2f96a8e037a57f0b5624149bf8a43d8bdcd3a900..e68aa0ffdece32ea222411f0a7ce5af6463ae4e3 100644
(file)
--- a/
block/iscsi.c
+++ b/
block/iscsi.c
@@
-417,6
+417,10
@@
static int coroutine_fn iscsi_co_flush(BlockDriverState *bs)
IscsiLun *iscsilun = bs->opaque;
struct IscsiTask iTask;
+ if (bs->sg) {
+ return 0;
+ }
+
iscsi_co_init_iscsitask(iscsilun, &iTask);
retry: