search for: xenbus_dev_error

...ertions(+), 1 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 5d45688..b53cae4 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1134,7 +1134,6 @@ blkfront_closing(struct blkfront_info *info) if (bdev->bd_openers) { xenbus_dev_error(xbdev, -EBUSY, "Device in use; refusing to close"); - xenbus_switch_state(xbdev, XenbusStateClosing); } else { xlvbd_release_gendisk(info); xenbus_frontend_closed(xbdev); -- 1.7.7.5

...ertions(+), 1 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 5d45688..b53cae4 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1134,7 +1134,6 @@ blkfront_closing(struct blkfront_info *info) if (bdev->bd_openers) { xenbus_dev_error(xbdev, -EBUSY, "Device in use; refusing to close"); - xenbus_switch_state(xbdev, XenbusStateClosing); } else { xlvbd_release_gendisk(info); xenbus_frontend_closed(xbdev); -- 1.7.7.5

...ertions(+), 1 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 5d45688..b53cae4 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1134,7 +1134,6 @@ blkfront_closing(struct blkfront_info *info) if (bdev->bd_openers) { xenbus_dev_error(xbdev, -EBUSY, "Device in use; refusing to close"); - xenbus_switch_state(xbdev, XenbusStateClosing); } else { xlvbd_release_gendisk(info); xenbus_frontend_closed(xbdev); -- 1.7.7.5

I accidentally realized today that any domU''s using the paravirt disk driver potentially suffer from poor performance when they get handed in a physical volume and partitioning is done inside the guest. The physical volume passed in has to be one that has the compat 512 logical sector size but hints its real sector size (eg. 4096) as physical sector size. In dom0 handling is correct and

...b/include/xen/xenbus.h index 5467369..aceeca7 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -223,7 +223,9 @@ int xenbus_free_evtchn(struct xenbus_device *dev, int port); enum xenbus_state xenbus_read_driver_state(const char *path); +__attribute__((format(printf, 3, 4))) void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...); +__attribute__((format(printf, 3, 4))) void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...); const char *xenbus_strstate(enum xenbus_state state); -- 1.7.6.rc1

...b/include/xen/xenbus.h index 5467369..aceeca7 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -223,7 +223,9 @@ int xenbus_free_evtchn(struct xenbus_device *dev, int port); enum xenbus_state xenbus_read_driver_state(const char *path); +__attribute__((format(printf, 3, 4))) void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...); +__attribute__((format(printf, 3, 4))) void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...); const char *xenbus_strstate(enum xenbus_state state); -- 1.7.6.rc1

...b/include/xen/xenbus.h index 5467369..aceeca7 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -223,7 +223,9 @@ int xenbus_free_evtchn(struct xenbus_device *dev, int port); enum xenbus_state xenbus_read_driver_state(const char *path); +__attribute__((format(printf, 3, 4))) void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...); +__attribute__((format(printf, 3, 4))) void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...); const char *xenbus_strstate(enum xenbus_state state); -- 1.7.6.rc1

...+ } + + if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, op, j)) + BUG(); + + node->nr_handles = 0; + + for (i = 0; i < j; i++) { + if (op[i].status != GNTST_okay) { + err = op[i].status; + xenbus_dev_error(dev, err, + "unmapping page %d at handle %d error %d", + i, op[i].handle, err); + } + } + + if (err == GNTST_okay) + free_vm_area(node->area); + + kfree(node); + + return err...

...+ } + + if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, op, j)) + BUG(); + + node->nr_handles = 0; + + for (i = 0; i < j; i++) { + if (op[i].status != GNTST_okay) { + err = op[i].status; + xenbus_dev_error(dev, err, + "unmapping page %d at handle %d error %d", + i, op[i].handle, err); + } + } + + if (err == GNTST_okay) + free_vm_area(node->area); + + kfree(node); + + return err...

...+ } + + if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, op, j)) + BUG(); + + node->nr_handles = 0; + + for (i = 0; i < j; i++) { + if (op[i].status != GNTST_okay) { + err = op[i].status; + xenbus_dev_error(dev, err, + "unmapping page %d at handle %d error %d", + i, op[i].handle, err); + } + } + + if (err == GNTST_okay) + free_vm_area(node->area); + + kfree(node); + + return err...

...nodename, "physical-device", "%x:%x", &major, &minor); @@ -322,6 +331,34 @@ static void backend_changed(struct xenbu kfree(device_type); } + /* gather information about QoS policy for this device. */ + err = blkback_name(be->blkif, name); + if (err) { + xenbus_dev_error(be->dev, err, "get blkback dev name"); + return; + } + + err = xenbus_gather(XBT_NIL, dev->otherend, + "tokens-rate", "%d", &be->blkif->reqrate, + NULL); + if(err){ + DPRINTK("%s xenbus_gather(tokens-min,tokens-rate) error",name); +...

...nodename, "physical-device", "%x:%x", &major, &minor); @@ -322,6 +331,34 @@ static void backend_changed(struct xenbu kfree(device_type); } + /* gather information about QoS policy for this device. */ + err = blkback_name(be->blkif, name); + if (err) { + xenbus_dev_error(be->dev, err, "get blkback dev name"); + return; + } + + err = xenbus_gather(XBT_NIL, dev->otherend, + "tokens-rate", "%d", &be->blkif->reqrate, + NULL); + if(err){ + DPRINTK("%s xenbus_gather(tokens-min,tokens-rate) error",name); +...

...op.status, "mapping in shared page %d from domain %d", gnt_ref, dev->otherend_id); @@ -508,7 +508,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) BUG(); if (op.status == GNTST_okay) - free_vm_area(area); + xen_free_vm_area(area); else xenbus_dev_error(dev, op.status, "unmapping page at handle %d error %d", diff --git a/include/asm-x86/xen/grant_table.h b/include/asm-x86/xen/grant_table.h new file mode 100644 index 0000000..2444d45 --- /dev/null +++ b/include/asm-x86/xen/grant_table.h @@ -0,0 +1,7 @@ +#ifndef __XEN_GRANT_TABLE_H +...

...op.status, "mapping in shared page %d from domain %d", gnt_ref, dev->otherend_id); @@ -508,7 +508,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) BUG(); if (op.status == GNTST_okay) - free_vm_area(area); + xen_free_vm_area(area); else xenbus_dev_error(dev, op.status, "unmapping page at handle %d error %d", diff --git a/include/asm-x86/xen/grant_table.h b/include/asm-x86/xen/grant_table.h new file mode 100644 index 0000000..2444d45 --- /dev/null +++ b/include/asm-x86/xen/grant_table.h @@ -0,0 +1,7 @@ +#ifndef __XEN_GRANT_TABLE_H +...

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *