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hw/ide: drop iov field from IDEBufferedRequest 

@iov is used only to initialize @qiov. Let's use new
qemu_iovec_init_buf() instead, which simplifies the code.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190218140926.333779-17-vsementsov@virtuozzo.com
Message-Id: <20190218140926.333779-17-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-02-18 17:09:25 +03:00 committed by Stefan Hajnoczi
parent e5863d49e4
commit 5bbe9325a0
2 changed files with 6 additions and 6 deletions
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11
hw/ide/core.c
View File

@ -629,13 +629,15 @@ static void ide_buffered_readv_cb(void *opaque, int ret)
IDEBufferedRequest *req = opaque;
if (!req->orphaned) {
if (!ret) {
qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
assert(req->qiov.size == req->original_qiov->size);
qemu_iovec_from_buf(req->original_qiov, 0,
req->qiov.local_iov.iov_base,
req->original_qiov->size);
}
req->original_cb(req->original_opaque, ret);
}
QLIST_REMOVE(req, list);
qemu_vfree(req->iov.iov_base);
qemu_vfree(qemu_iovec_buf(&req->qiov));
g_free(req);
}
@ -660,9 +662,8 @@ BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
req->original_qiov = iov;
req->original_cb = cb;
req->original_opaque = opaque;
req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
req->iov.iov_len = iov->size;
qemu_iovec_init_external(&req->qiov, &req->iov, 1);
qemu_iovec_init_buf(&req->qiov, blk_blockalign(s->blk, iov->size),
iov->size);
aioreq = blk_aio_preadv(s->blk, sector_num << BDRV_SECTOR_BITS,
&req->qiov, 0, ide_buffered_readv_cb, req);

1
include/hw/ide/internal.h
View File

@ -346,7 +346,6 @@ extern const char *IDE_DMA_CMD_lookup[IDE_DMA__COUNT];
typedef struct IDEBufferedRequest {
QLIST_ENTRY(IDEBufferedRequest) list;
struct iovec iov;
QEMUIOVector qiov;
QEMUIOVector *original_qiov;
BlockCompletionFunc *original_cb;