Merge remote-tracking branch 'kwolf/for-anthony' into staging

* kwolf/for-anthony: (30 commits)
  qemu-iotests: add tests for streaming error handling
  qemu-iotests: map underscore to dash in QMP argument names
  blkdebug: process all set_state rules in the old state
  stream: add on-error argument
  block: introduce block job error
  iostatus: reorganize io error code
  iostatus: change is_read to a bool
  iostatus: move BlockdevOnError declaration to QAPI
  iostatus: rename BlockErrorAction, BlockQMPEventAction
  qemu-iotests: add test for pausing a streaming operation
  qmp: add block-job-pause and block-job-resume
  block: add support for job pause/resume
  qmp: add 'busy' member to BlockJobInfo
  block: add block_job_query
  block: move job APIs to separate files
  block: fix documentation of block_job_cancel_sync
  qerror/block: introduce QERR_BLOCK_JOB_NOT_ACTIVE
  qemu-iotests: add initial tests for live block commit
  QAPI: add command for live block commit, 'block-commit'
  block: helper function, to find the base image of a chain
  ...

6 files changed, 27 insertions, 55 deletions

diff --git a/hw/fdc.c b/hw/fdc.c
index 08830c1ba2..43b0f20503 100644
--- a/hw/fdc.c
+++ b/hw/fdc.c
@@ -1994,11 +1994,11 @@ static int fdctrl_connect_drives(FDCtrl *fdctrl)
         drive->fdctrl = fdctrl;
 
         if (drive->bs) {
-            if (bdrv_get_on_error(drive->bs, 0) != BLOCK_ERR_STOP_ENOSPC) {
+            if (bdrv_get_on_error(drive->bs, 0) != BLOCKDEV_ON_ERROR_ENOSPC) {
                 error_report("fdc doesn't support drive option werror");
                 return -1;
             }
-            if (bdrv_get_on_error(drive->bs, 1) != BLOCK_ERR_REPORT) {
+            if (bdrv_get_on_error(drive->bs, 1) != BLOCKDEV_ON_ERROR_REPORT) {
                 error_report("fdc doesn't support drive option rerror");
                 return -1;
             }
diff --git a/hw/ide/core.c b/hw/ide/core.c
index d6fb69c634..d683a8cc84 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -556,32 +556,22 @@ void ide_dma_error(IDEState *s)
 
 static int ide_handle_rw_error(IDEState *s, int error, int op)
 {
-    int is_read = (op & BM_STATUS_RETRY_READ);
-    BlockErrorAction action = bdrv_get_on_error(s->bs, is_read);
+    bool is_read = (op & BM_STATUS_RETRY_READ) != 0;
+    BlockErrorAction action = bdrv_get_error_action(s->bs, is_read, error);
 
-    if (action == BLOCK_ERR_IGNORE) {
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_IGNORE, is_read);
-        return 0;
-    }
-
-    if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
-            || action == BLOCK_ERR_STOP_ANY) {
+    if (action == BDRV_ACTION_STOP) {
         s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
         s->bus->error_status = op;
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_STOP, is_read);
-        vm_stop(RUN_STATE_IO_ERROR);
-        bdrv_iostatus_set_err(s->bs, error);
-    } else {
+    } else if (action == BDRV_ACTION_REPORT) {
         if (op & BM_STATUS_DMA_RETRY) {
             dma_buf_commit(s);
             ide_dma_error(s);
         } else {
             ide_rw_error(s);
         }
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_REPORT, is_read);
     }
-
-    return 1;
+    bdrv_error_action(s->bs, action, is_read, error);
+    return action != BDRV_ACTION_IGNORE;
 }
 
 void ide_dma_cb(void *opaque, int ret)
diff --git a/hw/ide/pci.c b/hw/ide/pci.c
index 88c0942e34..644533f777 100644
--- a/hw/ide/pci.c
+++ b/hw/ide/pci.c
@@ -188,7 +188,7 @@ static void bmdma_restart_bh(void *opaque)
 {
     BMDMAState *bm = opaque;
     IDEBus *bus = bm->bus;
-    int is_read;
+    bool is_read;
     int error_status;
 
     qemu_bh_delete(bm->bh);
@@ -198,7 +198,7 @@ static void bmdma_restart_bh(void *opaque)
         return;
     }
 
-    is_read = !!(bus->error_status & BM_STATUS_RETRY_READ);
+    is_read = (bus->error_status & BM_STATUS_RETRY_READ) != 0;
 
     /* The error status must be cleared before resubmitting the request: The
      * request may fail again, and this case can only be distinguished if the
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 95e91585e6..99bb02ebf8 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -386,23 +386,11 @@ static void scsi_read_data(SCSIRequest *req)
  */
 static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
 {
-    int is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV);
+    bool is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV);
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
-    BlockErrorAction action = bdrv_get_on_error(s->qdev.conf.bs, is_read);
+    BlockErrorAction action = bdrv_get_error_action(s->qdev.conf.bs, is_read, error);
 
-    if (action == BLOCK_ERR_IGNORE) {
-        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_IGNORE, is_read);
-        return 0;
-    }
-
-    if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
-            || action == BLOCK_ERR_STOP_ANY) {
-
-        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_STOP, is_read);
-        vm_stop(RUN_STATE_IO_ERROR);
-        bdrv_iostatus_set_err(s->qdev.conf.bs, error);
-        scsi_req_retry(&r->req);
-    } else {
+    if (action == BDRV_ACTION_REPORT) {
         switch (error) {
         case ENOMEDIUM:
             scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
@@ -417,9 +405,12 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
             scsi_check_condition(r, SENSE_CODE(IO_ERROR));
             break;
         }
-        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_REPORT, is_read);
     }
-    return 1;
+    bdrv_error_action(s->qdev.conf.bs, action, is_read, error);
+    if (action == BDRV_ACTION_STOP) {
+        scsi_req_retry(&r->req);
+    }
+    return action != BDRV_ACTION_IGNORE;
 }
 
 static void scsi_write_complete(void * opaque, int ret)
diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index a5eb663ecf..d9045341ba 100644
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -400,11 +400,11 @@ static int scsi_generic_initfn(SCSIDevice *s)
         return -1;
     }
 
-    if (bdrv_get_on_error(s->conf.bs, 0) != BLOCK_ERR_STOP_ENOSPC) {
+    if (bdrv_get_on_error(s->conf.bs, 0) != BLOCKDEV_ON_ERROR_ENOSPC) {
         error_report("Device doesn't support drive option werror");
         return -1;
     }
-    if (bdrv_get_on_error(s->conf.bs, 1) != BLOCK_ERR_REPORT) {
+    if (bdrv_get_on_error(s->conf.bs, 1) != BLOCKDEV_ON_ERROR_REPORT) {
         error_report("Device doesn't support drive option rerror");
         return -1;
     }
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 6f6d172fd0..e25cc96477 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -64,31 +64,22 @@ static void virtio_blk_req_complete(VirtIOBlockReq *req, int status)
 }
 
 static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
-    int is_read)
+    bool is_read)
 {
-    BlockErrorAction action = bdrv_get_on_error(req->dev->bs, is_read);
+    BlockErrorAction action = bdrv_get_error_action(req->dev->bs, is_read, error);
     VirtIOBlock *s = req->dev;
 
-    if (action == BLOCK_ERR_IGNORE) {
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_IGNORE, is_read);
-        return 0;
-    }
-
-    if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
-            || action == BLOCK_ERR_STOP_ANY) {
+    if (action == BDRV_ACTION_STOP) {
         req->next = s->rq;
         s->rq = req;
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_STOP, is_read);
-        vm_stop(RUN_STATE_IO_ERROR);
-        bdrv_iostatus_set_err(s->bs, error);
-    } else {
+    } else if (action == BDRV_ACTION_REPORT) {
         virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
         bdrv_acct_done(s->bs, &req->acct);
         g_free(req);
-        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_REPORT, is_read);
     }
 
-    return 1;
+    bdrv_error_action(s->bs, action, is_read, error);
+    return action != BDRV_ACTION_IGNORE;
 }
 
 static void virtio_blk_rw_complete(void *opaque, int ret)
@@ -98,7 +89,7 @@ static void virtio_blk_rw_complete(void *opaque, int ret)
     trace_virtio_blk_rw_complete(req, ret);
 
     if (ret) {
-        int is_read = !(ldl_p(&req->out->type) & VIRTIO_BLK_T_OUT);
+        bool is_read = !(ldl_p(&req->out->type) & VIRTIO_BLK_T_OUT);
         if (virtio_blk_handle_rw_error(req, -ret, is_read))
             return;
     }