search for: preq

>>> On 03.04.13 at 15:25, William Dauchy <wdauchy@gmail.com> wrote: > On Wed, Apr 3, 2013 at 3:01 PM, Jan Beulich <JBeulich@suse.com> wrote: >> Iirc we requested the earlier commit to be removed from stable >> trees, and I think Greg also did so. > > I''m sorry but I''m unable to find a revert of 01c681d in stable tree. ChangeLog-3.8.3

Just moving a chunk of files from one filesysstem on xvba to another on xvdb, and was monitoring with xentop as it was taking longer than expected. The VBD_RD and VBD_WR counters were both clocking-up as expected, as was the VBD_RSECT counter, but the VBD_WSECT counter was stuck on zero, I toggled on the individual VBD device counters and these showed the same (with the RD and WR counters

Just moving a chunk of files from one filesysstem on xvba to another on xvdb, and was monitoring with xentop as it was taking longer than expected. The VBD_RD and VBD_WR counters were both clocking-up as expected, as was the VBD_RSECT counter, but the VBD_WSECT counter was stuck on zero, I toggled on the individual VBD device counters and these showed the same (with the RD and WR counters

...gt; + res = virtqueue_get_buf(vq, &len); > + if (res == NULL) > + return; > + > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > + vps->failed = 1; > +} > + > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > + struct virtio_pstore_req **preq, > + struct virtio_pstore_res **pres) > +{ > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > + > + *preq = &vps->req[idx]; > + *pres = &vps->res[idx]; > + > + memset(*preq, 0, sizeof(**preq)); > + memset(*pres, 0, sizeof(**pres)); > +} &...

...gt; + res = virtqueue_get_buf(vq, &len); > + if (res == NULL) > + return; > + > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > + vps->failed = 1; > +} > + > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > + struct virtio_pstore_req **preq, > + struct virtio_pstore_res **pres) > +{ > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > + > + *preq = &vps->req[idx]; > + *pres = &vps->res[idx]; > + > + memset(*preq, 0, sizeof(**preq)); > + memset(*pres, 0, sizeof(**pres)); > +} &...

...gt; + return; > > > + > > > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > > > + vps->failed = 1; > > > +} > > > + > > > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > > > + struct virtio_pstore_req **preq, > > > + struct virtio_pstore_res **pres) > > > +{ > > > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > > > + > > > + *preq = &vps->req[idx]; > > > + *pres = &vps->res[idx]; > > > + > > > + mems...

...gt; + return; > > > + > > > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > > > + vps->failed = 1; > > > +} > > > + > > > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > > > + struct virtio_pstore_req **preq, > > > + struct virtio_pstore_res **pres) > > > +{ > > > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > > > + > > > + *preq = &vps->req[idx]; > > > + *pres = &vps->res[idx]; > > > + > > > + mems...

...> > + if (res == NULL) > > + return; > > + > > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > > + vps->failed = 1; > > +} > > + > > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > > + struct virtio_pstore_req **preq, > > + struct virtio_pstore_res **pres) > > +{ > > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > > + > > + *preq = &vps->req[idx]; > > + *pres = &vps->res[idx]; > > + > > + memset(*preq, 0, sizeof(**preq)); > >...

...>>>> + >>>> + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) >>>> + vps->failed = 1; >>>> +} >>>> + >>>> +static void virt_pstore_get_reqs(struct virtio_pstore *vps, >>>> + struct virtio_pstore_req **preq, >>>> + struct virtio_pstore_res **pres) >>>> +{ >>>> + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; >>>> + >>>> + *preq = &vps->req[idx]; >>>> + *pres = &vps->res[idx]; >>>> + >&gt...

When I submitted the qcow2 patch for blktap, suggestions came up that the qemu block drivers should be used also for blktap to eliminate the current code duplication in ioemu and blktap. The attached patch adds support for a tap:ioemu pseudo driver. Devices using this driver won''t use tapdisk (containing the code duplication) any more, but will connect to the qemu-dm of the domain. In

...ct virtio_pstore_res *res; + unsigned int len; + + res = virtqueue_get_buf(vq, &len); + if (res == NULL) + return; + + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) + vps->failed = 1; +} + +static void virt_pstore_get_reqs(struct virtio_pstore *vps, + struct virtio_pstore_req **preq, + struct virtio_pstore_res **pres) +{ + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; + + *preq = &vps->req[idx]; + *pres = &vps->res[idx]; + + memset(*preq, 0, sizeof(**preq)); + memset(*pres, 0, sizeof(**pres)); +} + +static int virt_pstore_open(struct pstore_info *...

...ct virtio_pstore_res *res; + unsigned int len; + + res = virtqueue_get_buf(vq, &len); + if (res == NULL) + return; + + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) + vps->failed = 1; +} + +static void virt_pstore_get_reqs(struct virtio_pstore *vps, + struct virtio_pstore_req **preq, + struct virtio_pstore_res **pres) +{ + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; + + *preq = &vps->req[idx]; + *pres = &vps->res[idx]; + + memset(*preq, 0, sizeof(**preq)); + memset(*pres, 0, sizeof(**pres)); +} + +static int virt_pstore_open(struct pstore_info *...

...*bio = NULL; int ret, i; int operation; + struct timeval cur_time; + + *done_nr_sects = 0; switch (req->operation) { case BLKIF_OP_READ: @@ -582,6 +654,12 @@ static int dispatch_rw_block_io(blkif_t else if (operation == WRITE || operation == WRITE_BARRIER) blkif->st_wr_sect += preq.nr_sects; + *done_nr_sects = preq.nr_sects; + jiffies_to_timeval(jiffies, &cur_time); + if ((log_stats == 2) && (cur_time.tv_sec % 10 ==1 )) + printk(KERN_DEBUG " operation=%s sects=%d\n", + operation2str(req->operation),preq.nr_sects); + return 0; fail_flush: @...

...*bio = NULL; int ret, i; int operation; + struct timeval cur_time; + + *done_nr_sects = 0; switch (req->operation) { case BLKIF_OP_READ: @@ -582,6 +654,12 @@ static int dispatch_rw_block_io(blkif_t else if (operation == WRITE || operation == WRITE_BARRIER) blkif->st_wr_sect += preq.nr_sects; + *done_nr_sects = preq.nr_sects; + jiffies_to_timeval(jiffies, &cur_time); + if ((log_stats == 2) && (cur_time.tv_sec % 10 ==1 )) + printk(KERN_DEBUG " operation=%s sects=%d\n", + operation2str(req->operation),preq.nr_sects); + return 0; fail_flush: @...

...gt; + res = virtqueue_get_buf(vq, &len); > + if (res == NULL) > + return; > + > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > + vps->failed = 1; > +} > + > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > + struct virtio_pstore_req **preq, > + struct virtio_pstore_res **pres) > +{ > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > + > + *preq = &vps->req[idx]; > + *pres = &vps->res[idx]; > + > + memset(*preq, 0, sizeof(**preq)); > + memset(*pres, 0, sizeof(**pres)); > +} &...

...gt; + res = virtqueue_get_buf(vq, &len); > + if (res == NULL) > + return; > + > + if (virtio32_to_cpu(vq->vdev, res->ret) < 0) > + vps->failed = 1; > +} > + > +static void virt_pstore_get_reqs(struct virtio_pstore *vps, > + struct virtio_pstore_req **preq, > + struct virtio_pstore_res **pres) > +{ > + unsigned int idx = vps->req_id++ % VIRT_PSTORE_NR_REQ; > + > + *preq = &vps->req[idx]; > + *pres = &vps->res[idx]; > + > + memset(*preq, 0, sizeof(**preq)); > + memset(*pres, 0, sizeof(**pres)); > +} &...

I am proposing these two patches for 3.2. They allow the backend to process the REQ_FUA request as well. Previous to these patches it only did REQ_FLUSH. There is also a bug-fix for the logic of how barrier/flushes were handled. The patches are based on a branch which also has ''feature-discard'' patches, so they won''t apply nativly on top of 3.1-rc5. Please review and

Hello, This is another iteration of the virtio-pstore work. I've addressed all comments from Daniel Berrange on the qemu side. * changes in v4) - use qio_channel_file_new_path() (Daniel) - rename to delete_old_pstore_file (Daniel) - convert G_REMOVE_SOURCE to FALSE (Daniel) * changes in v3) - use QIOChannel API (Stefan, Daniel) - add bound check for malcious guests

...tch_rw_block_io(struct xen_blkif *blkif, - struct blkif_request *req, struct pending_req *pending_req) { + struct blkif_request *req = (struct blkif_request *)blkif->req; + struct blkif_request_segment *seg_req = blkif->seg_req; struct phys_req preq; - struct seg_buf seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + struct seg_buf *seg = pending_req->seg; unsigned int nseg; struct bio *bio = NULL; - struct bio *biolist[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + struct bio **biolist = pending_req->biolist; int i, nbio = 0; int op...

Hello, This is another iteration of the virtio-pstore work. I've addressed all comments from Daniel Berrange on the qemu side. * changes in v4) - use qio_channel_file_new_path() (Daniel) - rename to delete_old_pstore_file (Daniel) - convert G_REMOVE_SOURCE to FALSE (Daniel) * changes in v3) - use QIOChannel API (Stefan, Daniel) - add bound check for malcious guests