Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Fri 12 Sep 2014 16:09:43 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (22 commits)
  qcow2: Add falloc and full preallocation option
  raw-posix: Add falloc and full preallocation option
  qapi: introduce PreallocMode and new PreallocModes full and falloc.
  block: don't convert file size to sector size
  block: round up file size to nearest sector
  iotests: Send the correct fd in socket_scm_helper
  blockdev: Refuse to drive_del something added with blockdev-add
  block: extend BLOCK_IO_ERROR with reason string
  dataplane: fix virtio_blk_data_plane_create() op blocker error path
  qemu-iotests: Run 025 for Archipelago block driver
  block/archipelago: Implement bdrv_truncate()
  block: Make the block accounting functions operate on BlockAcctStats
  block: rename BlockAcctType members to start with BLOCK_ instead of BDRV_
  block: Extract the block accounting code
  block: Extract the BlockAcctStats structure
  IDE: MMIO IDE device control should be little endian
  thread-pool: Drop unnecessary includes
  xen: Drop redundant bdrv_close() from pci_piix3_xen_ide_unplug()
  xen_disk: Plug memory leak on error path
  qemu-io: Clean up openfile() after commit 2e40134
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 32 insertions, 30 deletions

diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index b55188c..5458f9d 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -164,8 +164,8 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk,
      * block jobs that can conflict.
      */
     if (bdrv_op_is_blocked(blk->conf.bs, BLOCK_OP_TYPE_DATAPLANE, &local_err)) {
-        error_report("cannot start dataplane thread: %s",
-                      error_get_pretty(local_err));
+        error_setg(errp, "cannot start dataplane thread: %s",
+                   error_get_pretty(local_err));
         error_free(local_err);
         return;
     }
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 04459e5..b010c9b 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -197,7 +197,7 @@ static void nvme_rw_cb(void *opaque, int ret)
     NvmeCtrl *n = sq->ctrl;
     NvmeCQueue *cq = n->cq[sq->cqid];
 
-    bdrv_acct_done(n->conf.bs, &req->acct);
+    block_acct_done(bdrv_get_stats(n->conf.bs), &req->acct);
     if (!ret) {
         req->status = NVME_SUCCESS;
     } else {
@@ -232,7 +232,7 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd *cmd,
     assert((nlb << data_shift) == req->qsg.size);
 
     dma_acct_start(n->conf.bs, &req->acct, &req->qsg, is_write ?
-        BDRV_ACCT_WRITE : BDRV_ACCT_READ);
+        BLOCK_ACCT_WRITE : BLOCK_ACCT_READ);
     req->aiocb = is_write ?
         dma_bdrv_write(n->conf.bs, &req->qsg, aio_slba, nvme_rw_cb, req) :
         dma_bdrv_read(n->conf.bs, &req->qsg, aio_slba, nvme_rw_cb, req);
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index a7f2827..38ad38f 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -74,7 +74,7 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
         s->rq = req;
     } else if (action == BLOCK_ERROR_ACTION_REPORT) {
         virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
-        bdrv_acct_done(s->bs, &req->acct);
+        block_acct_done(bdrv_get_stats(s->bs), &req->acct);
         virtio_blk_free_request(req);
     }
 
@@ -96,7 +96,7 @@ static void virtio_blk_rw_complete(void *opaque, int ret)
     }
 
     virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
-    bdrv_acct_done(req->dev->bs, &req->acct);
+    block_acct_done(bdrv_get_stats(req->dev->bs), &req->acct);
     virtio_blk_free_request(req);
 }
 
@@ -111,7 +111,7 @@ static void virtio_blk_flush_complete(void *opaque, int ret)
     }
 
     virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
-    bdrv_acct_done(req->dev->bs, &req->acct);
+    block_acct_done(bdrv_get_stats(req->dev->bs), &req->acct);
     virtio_blk_free_request(req);
 }
 
@@ -279,7 +279,8 @@ void virtio_submit_multiwrite(BlockDriverState *bs, MultiReqBuffer *mrb)
 
 static void virtio_blk_handle_flush(VirtIOBlockReq *req, MultiReqBuffer *mrb)
 {
-    bdrv_acct_start(req->dev->bs, &req->acct, 0, BDRV_ACCT_FLUSH);
+    block_acct_start(bdrv_get_stats(req->dev->bs), &req->acct, 0,
+                     BLOCK_ACCT_FLUSH);
 
     /*
      * Make sure all outstanding writes are posted to the backing device.
@@ -322,7 +323,8 @@ static void virtio_blk_handle_write(VirtIOBlockReq *req, MultiReqBuffer *mrb)
         return;
     }
 
-    bdrv_acct_start(req->dev->bs, &req->acct, req->qiov.size, BDRV_ACCT_WRITE);
+    block_acct_start(bdrv_get_stats(req->dev->bs), &req->acct, req->qiov.size,
+                     BLOCK_ACCT_WRITE);
 
     if (mrb->num_writes == 32) {
         virtio_submit_multiwrite(req->dev->bs, mrb);
@@ -353,7 +355,8 @@ static void virtio_blk_handle_read(VirtIOBlockReq *req)
         return;
     }
 
-    bdrv_acct_start(req->dev->bs, &req->acct, req->qiov.size, BDRV_ACCT_READ);
+    block_acct_start(bdrv_get_stats(req->dev->bs), &req->acct, req->qiov.size,
+                     BLOCK_ACCT_READ);
     bdrv_aio_readv(req->dev->bs, sector, &req->qiov,
                    req->qiov.size / BDRV_SECTOR_SIZE,
                    virtio_blk_rw_complete, req);
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index a221d0b..0d27ab1 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -493,7 +493,7 @@ static void qemu_aio_complete(void *opaque, int ret)
             break;
         }
     case BLKIF_OP_READ:
-        bdrv_acct_done(ioreq->blkdev->bs, &ioreq->acct);
+        block_acct_done(bdrv_get_stats(ioreq->blkdev->bs), &ioreq->acct);
         break;
     case BLKIF_OP_DISCARD:
     default:
@@ -518,7 +518,8 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
 
     switch (ioreq->req.operation) {
     case BLKIF_OP_READ:
-        bdrv_acct_start(blkdev->bs, &ioreq->acct, ioreq->v.size, BDRV_ACCT_READ);
+        block_acct_start(bdrv_get_stats(blkdev->bs), &ioreq->acct,
+                         ioreq->v.size, BLOCK_ACCT_READ);
         ioreq->aio_inflight++;
         bdrv_aio_readv(blkdev->bs, ioreq->start / BLOCK_SIZE,
                        &ioreq->v, ioreq->v.size / BLOCK_SIZE,
@@ -530,7 +531,8 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
             break;
         }
 
-        bdrv_acct_start(blkdev->bs, &ioreq->acct, ioreq->v.size, BDRV_ACCT_WRITE);
+        block_acct_start(bdrv_get_stats(blkdev->bs), &ioreq->acct,
+                         ioreq->v.size, BLOCK_ACCT_WRITE);
         ioreq->aio_inflight++;
         bdrv_aio_writev(blkdev->bs, ioreq->start / BLOCK_SIZE,
                         &ioreq->v, ioreq->v.size / BLOCK_SIZE,
@@ -852,28 +854,25 @@ static int blk_connect(struct XenDevice *xendev)
     blkdev->dinfo = drive_get(IF_XEN, 0, index);
     if (!blkdev->dinfo) {
         Error *local_err = NULL;
+        BlockDriver *drv;
+
         /* setup via xenbus -> create new block driver instance */
         xen_be_printf(&blkdev->xendev, 2, "create new bdrv (xenbus setup)\n");
-        blkdev->bs = bdrv_new(blkdev->dev, &local_err);
-        if (local_err) {
-            blkdev->bs = NULL;
-        }
-        if (blkdev->bs) {
-            BlockDriver *drv = bdrv_find_whitelisted_format(blkdev->fileproto,
-                                                           readonly);
-            if (bdrv_open(&blkdev->bs, blkdev->filename, NULL, NULL, qflags,
-                          drv, &local_err) != 0)
-            {
-                xen_be_printf(&blkdev->xendev, 0, "error: %s\n",
-                              error_get_pretty(local_err));
-                error_free(local_err);
-                bdrv_unref(blkdev->bs);
-                blkdev->bs = NULL;
-            }
-        }
+        blkdev->bs = bdrv_new(blkdev->dev, NULL);
         if (!blkdev->bs) {
             return -1;
         }
+
+        drv = bdrv_find_whitelisted_format(blkdev->fileproto, readonly);
+        if (bdrv_open(&blkdev->bs, blkdev->filename, NULL, NULL, qflags,
+                      drv, &local_err) != 0) {
+            xen_be_printf(&blkdev->xendev, 0, "error: %s\n",
+                          error_get_pretty(local_err));
+            error_free(local_err);
+            bdrv_unref(blkdev->bs);
+            blkdev->bs = NULL;
+            return -1;
+        }
     } else {
         /* setup via qemu cmdline -> already setup for us */
         xen_be_printf(&blkdev->xendev, 2, "get configured bdrv (cmdline setup)\n");