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block: Add ioctl parameter fields to BlockRequest

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The two fields that will be used by ioctl handling code later are added
as union, because it's used exclusively by ioctl code which dosn't need
the four fields in the other struct of the union.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1447064214-29930-6-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2015-11-09 18:16:50 +08:00 • committed by Kevin Wolf
parent 4bb17ab51a
commit 8b45f6878d
1 changed files with 12 additions and 4 deletions
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16
include/block/block.h
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@ -335,10 +335,18 @@ void bdrv_aio_cancel_async(BlockAIOCB *acb);
typedef struct BlockRequest {
/* Fields to be filled by multiwrite caller */
int64_t sector;
int nb_sectors;
int flags;
QEMUIOVector *qiov;
union {
struct {
int64_t sector;
int nb_sectors;
int flags;
QEMUIOVector *qiov;
};
struct {
int req;
void *buf;
};
};
BlockCompletionFunc *cb;
void *opaque;