kernel.git/drivers/virtio/virtio_balloon.c, branch linux-3.13.y

virtio_balloon: update_balloon_size(): update correct field

2013-12-05T02:42:39Z

According to the virtio spec, the device configuration field that should be updated after an inflation or deflation operation is the 'actual' field, not the 'num_pages' one. Commit 855e0c5288177bcb193f6f6316952d2490478e1c swapped them in update_balloon_size(). Fix it. Signed-off-by: Luiz Capitulino Signed-off-by: Rusty Russell Fixes: 855e0c5288177bcb193f6f6316952d2490478e1c

virtio: use size-based config accessors.

2013-10-17T00:25:37Z

This lets the transport do endian conversion if necessary, and insulates the drivers from the difference. Most drivers can use the simple helpers virtio_cread() and virtio_cwrite(). Signed-off-by: Rusty Russell

virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM

2013-09-23T06:15:58Z

The freeze and restore functions defined in virtio drivers are used for suspend and hibernate, so CONFIG_PM_SLEEP is more appropriate than CONFIG_PM. This patch replace all CONFIG_PM with CONFIG_PM_SLEEP for virtio drivers that implement freeze and restore callbacks. Signed-off-by: Aaron Lu Reviewed-by: Amit Shah Signed-off-by: Rusty Russell

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2013-07-10T21:50:58Z

Pull virtio updates from Rusty Russell: "No real surprises" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MAINTAINERS: add tools/virtio/ under virtio tools/virtio: move module license stub to module.h virtio: include asm/barrier explicitly virtio: VIRTIO_F_ANY_LAYOUT feature lguest: fix example launcher compilation for broken glibc headers. virtio-net: fix the race between channels setting and refill tools/lguest: real barriers. tools/lguest: fix missing rmb(). virtio_balloon: leak_balloon(): only tell host if we got pages deflated virtio-pci: fix leaks of msix_affinity_masks Fix comment typo "CONFIG_PAE"

mm: correctly update zone->managed_pages

2013-07-03T23:07:33Z

Enhance adjust_managed_page_count() to adjust totalhigh_pages for highmem pages. And change code which directly adjusts totalram_pages to use adjust_managed_page_count() because it adjusts totalram_pages, totalhigh_pages and zone->managed_pages altogether in a safe way. Remove inc_totalhigh_pages() and dec_totalhigh_pages() from xen/balloon driver bacause adjust_managed_page_count() has already adjusted totalhigh_pages. This patch also fixes two bugs: 1) enhances virtio_balloon driver to adjust totalhigh_pages when reserve/unreserve pages. 2) enhance memory_hotplug.c to adjust totalhigh_pages when hot-removing memory. We still need to deal with modifications of totalram_pages in file arch/powerpc/platforms/pseries/cmm.c, but need help from PPC experts. [akpm@linux-foundation.org: remove ifdef, per Wanpeng Li, virtio_balloon.c cleanup, per Sergei] [akpm@linux-foundation.org: export adjust_managed_page_count() to modules, for drivers/virtio/virtio_balloon.c] Signed-off-by: Jiang Liu Cc: Chris Metcalf Cc: Rusty Russell Cc: "Michael S. Tsirkin" Cc: Konrad Rzeszutek Wilk Cc: Jeremy Fitzhardinge Cc: Wen Congyang Cc: Tang Chen Cc: Yasuaki Ishimatsu Cc: Mel Gorman Cc: Minchan Kim Cc: "H. Peter Anvin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: David Howells Cc: Geert Uytterhoeven Cc: Ingo Molnar Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Marek Szyprowski Cc: Michel Lespinasse Cc: Rik van Riel Cc: Tejun Heo Cc: Thomas Gleixner Cc: Will Deacon Cc: Yinghai Lu Cc: Russell King Cc: Sergei Shtylyov Cc: Wu Fengguang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

virtio_balloon: leak_balloon(): only tell host if we got pages deflated

2013-07-02T06:12:03Z

balloon_page_dequeue() can return NULL. If it does for the first page being freed then leak_balloon() will create a scatter list with len=0. Which in turn seems to generate an invalid virtio request. I didn't get this in practice, I found it by code review. On the other hand, such an invalid virtio request will cause errors in QEMU and fill_balloon() also performs the same check implemented by this commit. This bug was introduced in e2250429. Signed-off-by: Luiz Capitulino Acked-by: Rafael Aquini Signed-off-by: Andrew Morton Signed-off-by: Rusty Russell Cc: stable@kernel.org # 3.9

virtio_balloon: use simplified virtqueue accessors.

2013-03-20T05:15:06Z

We never add buffers with input and output parts, so use the new accessors. Signed-off-by: Rusty Russell

virtio: use module_virtio_driver.

2013-02-13T06:30:37Z

Signed-off-by: Rusty Russell

Drivers: virtio: remove __dev* attributes.

2013-01-03T23:57:01Z

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton Cc: Rusty Russell Cc: "Michael S. Tsirkin" Signed-off-by: Greg Kroah-Hartman

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-20T16:37:05Z

Pull virtio update from Rusty Russell: "Some nice cleanups, and even a patch my wife did as a "live" demo for Latinoware 2012. There's a slightly non-trivial merge in virtio-net, as we cleaned up the virtio add_buf interface while DaveM accepted the mq virtio-net patches." * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits) virtio_console: Add support for remoteproc serial virtio_console: Merge struct buffer_token into struct port_buffer virtio: add drv_to_virtio to make code clearly virtio: use dev_to_virtio wrapper in virtio virtio-mmio: Fix irq parsing in command line parameter virtio_console: Free buffers from out-queue upon close virtio: Convert dev_printk(KERN_ to dev_( virtio_console: Use kmalloc instead of kzalloc virtio_console: Free buffer if splice fails virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: make virtqueue_add_buf() returning 0 on success, not capacity. virtio: console: don't rely on virtqueue_add_buf() returning capacity. virtio_net: don't rely on virtqueue_add_buf() returning capacity. virtio-net: remove unused skb_vnet_hdr->num_sg field virtio-net: correct capacity math on ring full virtio: move queue_index and num_free fields into core struct virtqueue. ...