Merge remote-tracking branch 'sstabellini/disk_io' into staging

* sstabellini/disk_io:
  xen_disk: when using AIO flush after the operation is completed
  xen_disk: open disk with BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NATIVE_AIO
This commit is contained in:
Anthony Liguori 2012-03-28 12:46:39 -05:00
commit cbd5979bb2

View File

@ -330,6 +330,9 @@ static void qemu_aio_complete(void *opaque, int ret)
if (ioreq->aio_inflight > 0) {
return;
}
if (ioreq->postsync) {
bdrv_flush(ioreq->blkdev->bs);
}
ioreq->status = ioreq->aio_errors ? BLKIF_RSP_ERROR : BLKIF_RSP_OKAY;
ioreq_unmap(ioreq);
@ -376,9 +379,6 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
goto err;
}
if (ioreq->postsync) {
bdrv_flush(blkdev->bs); /* FIXME: aio_flush() ??? */
}
qemu_aio_complete(ioreq, 0);
return 0;
@ -584,10 +584,10 @@ static int blk_init(struct XenDevice *xendev)
}
/* read-only ? */
qflags = BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NATIVE_AIO;
if (strcmp(blkdev->mode, "w") == 0) {
qflags = BDRV_O_RDWR;
qflags |= BDRV_O_RDWR;
} else {
qflags = 0;
info |= VDISK_READONLY;
}