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Hi, using btrfs with LVM snapshots seems to be confusing /proc/mounts After mounting a snapshot of an original filesystem, the devicename of the original filesystem is overwritten with that of the snapshot in /proc/mounts. Steps to reproduce: arnd@kallisto:/mnt$ sudo mount /dev/vg0/original /mnt/original [ 107.041432] device fsid 5c3e8ca2-da56-4ade-9fef-103a6a8a70c2 devid 1 transid 4 /dev/mapper/vg0-original [ 107.044691] btrfs: no dev_stats entry found for device /dev/mapper/vg0-original (devid 1) (OK on first mount after mkfs) arnd@kall...

On Wed, Dec 30, 2015 at 02:49:53PM +0100, Arnd Bergmann wrote: > On Wednesday 30 December 2015 15:24:12 Michael S. Tsirkin wrote: > > This is really trying to cleanup some virt code, as suggested by Peter, who > > said > > > You could of course go fix that instead of mutilating things into > > > sort-of function...

On Wed, Dec 30, 2015 at 02:49:53PM +0100, Arnd Bergmann wrote: > On Wednesday 30 December 2015 15:24:12 Michael S. Tsirkin wrote: > > This is really trying to cleanup some virt code, as suggested by Peter, who > > said > > > You could of course go fix that instead of mutilating things into > > > sort-of function...

From: Arnd Bergmann <arnd at arndb.de> tu102_gr_load() is completely unused and can be removed to address this warning: drivers/gpu/drm/nouveau/dispnv50/disp.c:2517:1: error: no previous prototype for 'nv50_display_create' Another patch was sent in the meantime to mark the function static but...

From: Arnd Bergmann <arnd at arndb.de> nv50_display_create() is declared in another header, along with a couple of declarations that are now outdated: drivers/gpu/drm/nouveau/dispnv50/disp.c:2517:1: error: no previous prototype for 'nv50_display_create' Fixes: ba801ef068c1 ("drm/nouveau/...

...d to add all five patches to that tree before they make it into mainline. It's likely that some of these have already been fixed since this morning's linux-next, so just ignore the ones are no longer needed. [resending because of missing Cc list for the actual patches, sorry about that] Arnd Bergmann (5): headers_check: don't warn about c++ guards drm: mediatek: add CONFIG_OF dependency drm: mediatek: fixup drm_gem_object_lookup API change drm: exynos: mark pm functions as __maybe_unused drm: remove unused dev variables drivers/gpu/drm/armada/armada_crtc.c | 1 - driv...

...tested VEPA operation with the hairpin support added to the bridge driver by Anna Fischer. My current plan is to submit this for inclusion in 2.6.33 when people are happy with it and I tracked down any remaining bugs, and possibly to do the communication with the lower device one release later. Arnd <>< --- Arnd Bergmann (3): macvlan: implement VEPA and private mode macvlan: export macvlan mode through netlink iplink: add macvlan options for bridge mode Eric Biederman (1): macvlan: Reflect macvlan packets meant for other macvlan devices linux/drivers/net/macvlan.c | 17...

...tested VEPA operation with the hairpin support added to the bridge driver by Anna Fischer. My current plan is to submit this for inclusion in 2.6.33 when people are happy with it and I tracked down any remaining bugs, and possibly to do the communication with the lower device one release later. Arnd <>< --- Arnd Bergmann (3): macvlan: implement VEPA and private mode macvlan: export macvlan mode through netlink iplink: add macvlan options for bridge mode Eric Biederman (1): macvlan: Reflect macvlan packets meant for other macvlan devices linux/drivers/net/macvlan.c | 17...

...tested VEPA operation with the hairpin support added to the bridge driver by Anna Fischer. My current plan is to submit this for inclusion in 2.6.33 when people are happy with it and I tracked down any remaining bugs, and possibly to do the communication with the lower device one release later. Arnd <>< --- Arnd Bergmann (3): macvlan: implement VEPA and private mode macvlan: export macvlan mode through netlink iplink: add macvlan options for bridge mode Eric Biederman (1): macvlan: Reflect macvlan packets meant for other macvlan devices linux/drivers/net/macvlan.c | 17...

On Wed, Oct 7, 2015 at 1:23 PM, Arnd Bergmann <arnd at arndb.de> wrote: > On Wednesday 07 October 2015 13:04:06 Arnd Bergmann wrote: >> On Wednesday 07 October 2015 11:45:02 Russell King - ARM Linux wrote: >> > On Wed, Oct 07, 2015 at 12:41:21PM +0200, Arnd Bergmann wrote: >> > > The virtgpu driver...

On Wed, Oct 7, 2015 at 1:23 PM, Arnd Bergmann <arnd at arndb.de> wrote: > On Wednesday 07 October 2015 13:04:06 Arnd Bergmann wrote: >> On Wednesday 07 October 2015 11:45:02 Russell King - ARM Linux wrote: >> > On Wed, Oct 07, 2015 at 12:41:21PM +0200, Arnd Bergmann wrote: >> > > The virtgpu driver...

...ate_balloon_stats instead of filling the buffer with invalid tags. * Add BUG_ON to update_balloon_stats to formalize the invariant that all slots in the buffer must be initialized. v2->v3: * Remove BUG_ON and return the actual number of counters from update_balloon_stats instead. * Added Arnd's patch to omit VM stats if CONFIG_VM_EVENT_COUNTERS is not defined. Arnd Bergmann (1): virtio_balloon: prevent uninitialized variable use Ladi Prosek (2): virtio_balloon: don't push uninitialized buffers to stats virtqueue virtio-balloon: use actual number of stats f...

...ate_balloon_stats instead of filling the buffer with invalid tags. * Add BUG_ON to update_balloon_stats to formalize the invariant that all slots in the buffer must be initialized. v2->v3: * Remove BUG_ON and return the actual number of counters from update_balloon_stats instead. * Added Arnd's patch to omit VM stats if CONFIG_VM_EVENT_COUNTERS is not defined. Arnd Bergmann (1): virtio_balloon: prevent uninitialized variable use Ladi Prosek (2): virtio_balloon: don't push uninitialized buffers to stats virtqueue virtio-balloon: use actual number of stats f...

...N_SHIFT); ^ kernel/resource.c:1654:48: error: use of undeclared identifier 'MAX_PHYSMEM_BITS' Add a dependency for Nouveau to avoid broken randconfig builds. Fixes: d2c63df2242e ("mm/hmm: make CONFIG_DEVICE_PRIVATE into a select") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/gpu/drm/nouveau/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index af5793f3e7c2..996ec5475908 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kc...

...eeze_down(struct virtio_device *vdev) A more robust way to do this is to remove the #ifdef around the callers and instead mark them as __maybe_unused. The compiler will now just silently drop the unused code. Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/net/virtio_net.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index d4751ce23b4f..1902701e15a9 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -270...

...eeze_down(struct virtio_device *vdev) A more robust way to do this is to remove the #ifdef around the callers and instead mark them as __maybe_unused. The compiler will now just silently drop the unused code. Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/net/virtio_net.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index d4751ce23b4f..1902701e15a9 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -270...

When building the new vsock code without vhost, we get a build error: drivers/built-in.o: In function `vhost_vsock_flush': :(.text+0x24d29c): undefined reference to `vhost_poll_flush' This adds an explicit 'select' like we have for the other vhost drivers. Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/vhost/Kconfig.vsock | 2 ++ 1 file changed, 2 insertions(+) The patch causing the problem is currently in net-next, so the fix should be applied on top of that. diff --git a/drivers/vhost/Kconfig.vsock b/drivers/vhost/Kconfig.vsock index 3491865d3eb9...

When building the new vsock code without vhost, we get a build error: drivers/built-in.o: In function `vhost_vsock_flush': :(.text+0x24d29c): undefined reference to `vhost_poll_flush' This adds an explicit 'select' like we have for the other vhost drivers. Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/vhost/Kconfig.vsock | 2 ++ 1 file changed, 2 insertions(+) The patch causing the problem is currently in net-next, so the fix should be applied on top of that. diff --git a/drivers/vhost/Kconfig.vsock b/drivers/vhost/Kconfig.vsock index 3491865d3eb9...

...n extra check to prevent copying uninitialized stack data into the statistics. >From all I can tell, this has been broken since the statistics code was originally added in 2.6.34. Fixes: 9564e138b1f6 ("virtio: Add memory statistics reporting to the balloon driver (V4)") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/virtio/virtio_balloon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 4e1191508228..cd5c54e2003d 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_ba...

...n extra check to prevent copying uninitialized stack data into the statistics. >From all I can tell, this has been broken since the statistics code was originally added in 2.6.34. Fixes: 9564e138b1f6 ("virtio: Add memory statistics reporting to the balloon driver (V4)") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/virtio/virtio_balloon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 4e1191508228..cd5c54e2003d 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_ba...