Update AUFS kernel to 4.9

Signed-off-by: Justin Cormack <justin.cormack@docker.com>

alpine/kernel/Dockerfile

@@ -20,7 +20,7 @@ RUN if [ $DEBUG -ne "0" ]; then \
     fi
 
 # Apply local patches
-COPY patches /patches
+COPY patches-4.9 /patches
 RUN cd /linux && \
     set -e && for patch in /patches/*.patch; do \
         echo "Applying $patch"; \

alpine/kernel/Dockerfile.aufs

@@ -1,7 +1,7 @@
 # Tag: 3da0b0ea0da2724232603094e67c75b41adab551
 FROM mobylinux/alpine-build-c@sha256:0236d6599f6c8f7aa42829285e04202fbe99984df2818af0f5a453a59de8b090
 
-ARG KERNEL_VERSION=4.8.15
+ARG KERNEL_VERSION=4.9
 
 ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz
 
@@ -9,10 +9,10 @@ RUN curl -fsSL -o linux-${KERNEL_VERSION}.tar.xz ${KERNEL_SOURCE}
 
 RUN cat linux-${KERNEL_VERSION}.tar.xz | tar --absolute-names -xJ &&  mv /linux-${KERNEL_VERSION} /linux
 
-# this is aufs4.8 20161010
+# this is aufs4.9 20161219
 ENV AUFS_REPO       https://github.com/sfjro/aufs4-standalone
-ENV AUFS_BRANCH     aufs4.8
+ENV AUFS_BRANCH     aufs4.9
-ENV AUFS_COMMIT     e9fd128dcb16167417683e199a5feb14f3c9eca8
+ENV AUFS_COMMIT     0d8e71c28da317ec6371b6b95b46a70cefe13777
 
 # Download AUFS
 RUN git clone -b "$AUFS_BRANCH" "$AUFS_REPO" /aufs && \
@@ -58,7 +58,7 @@ RUN if [ $DEBUG -ne "0" ]; then \
     fi
 
 # Apply local patches
-COPY patches-aufs /patches
+COPY patches-4.9 /patches
 RUN cd /linux && \
     set -e && for patch in /patches/*.patch; do \
         echo "Applying $patch"; \

alpine/kernel/Makefile

@@ -3,7 +3,7 @@ DEBUG ?= 0
 all:	x86_64/vmlinuz64
 
 ifdef AUFS
-x86_64/vmlinuz64: Dockerfile.aufs kernel_config kernel_config.debug kernel_config.aufs patches-aufs
+x86_64/vmlinuz64: Dockerfile.aufs kernel_config kernel_config.debug kernel_config.aufs patches-4.9
 	mkdir -p x86_64 etc lib usr sbin
 	BUILD=$$( tar cf - $^ | docker build -f Dockerfile.aufs --build-arg DEBUG=$(DEBUG) -q - ) && [ -n "$$BUILD" ] && echo "Built $$BUILD" && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /kernel-modules.tar | tar xf - && \
@@ -12,9 +12,9 @@ x86_64/vmlinuz64: Dockerfile.aufs kernel_config kernel_config.debug kernel_confi
 	docker run --rm --net=none --log-driver=none $$BUILD cat /linux/vmlinux > x86_64/vmlinux && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /linux/arch/x86_64/boot/bzImage > $@ && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /kernel-headers.tar > x86_64/kernel-headers.tar && \
-	cp -a patches-aufs etc/kernel-patches
+	cp -a patches-4.9 etc/kernel-patches
 else
-x86_64/vmlinuz64: Dockerfile kernel_config kernel_config.debug patches
+x86_64/vmlinuz64: Dockerfile kernel_config kernel_config.debug patches-4.9
 	mkdir -p x86_64 etc lib usr sbin
 	BUILD=$$( tar cf - $^ | docker build --build-arg DEBUG=$(DEBUG) -q - ) && [ -n "$$BUILD" ] && echo "Built $$BUILD" && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /kernel-modules.tar | tar xf - && \
@@ -22,7 +22,7 @@ x86_64/vmlinuz64: Dockerfile kernel_config kernel_config.debug patches
 	docker run --rm --net=none --log-driver=none $$BUILD cat /linux/vmlinux > x86_64/vmlinux && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /linux/arch/x86_64/boot/bzImage > $@ && \
 	docker run --rm --net=none --log-driver=none $$BUILD cat /kernel-headers.tar > x86_64/kernel-headers.tar && \
-	cp -a patches etc/kernel-patches
+	cp -a patches-4.9 etc/kernel-patches
 endif
 
 clean:

alpine/kernel/patches-aufs/0002-Drivers-hv-vmbus-fix-the-race-when-querying-updating.patch

@@ -1,133 +0,0 @@
-From 0ee181462b9f52d60ca5188e3013870621068864 Mon Sep 17 00:00:00 2001
-From: Dexuan Cui <decui@microsoft.com>
-Date: Sat, 21 May 2016 16:55:50 +0800
-Subject: [PATCH 2/5] Drivers: hv: vmbus: fix the race when querying & updating
- the percpu list
-
-There is a rare race when we remove an entry from the global list
-hv_context.percpu_list[cpu] in hv_process_channel_removal() ->
-percpu_channel_deq() -> list_del(): at this time, if vmbus_on_event() ->
-process_chn_event() -> pcpu_relid2channel() is trying to query the list,
-we can get the general protection fault:
-
-general protection fault: 0000 [#1] SMP
-...
-RIP: 0010:[<ffffffff81461b6b>]  [<ffffffff81461b6b>] vmbus_on_event+0xc4/0x149
-
-Similarly, we also have the issue in the code path: vmbus_process_offer() ->
-percpu_channel_enq().
-
-We can resolve the issue by disabling the tasklet when updating the list.
-
-Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
-Signed-off-by: Dexuan Cui <decui@microsoft.com>
-Origin: https://github.com/dcui/linux/commit/fbcca73228b9b90911ab30fdf75f532b2b7c07e5
----
- drivers/hv/channel.c      |  1 +
- drivers/hv/channel_mgmt.c | 18 ++++++++++++++++--
- 2 files changed, 17 insertions(+), 2 deletions(-)
-
-diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
-index 56dd261..75343e0 100644
---- a/drivers/hv/channel.c
-+++ b/drivers/hv/channel.c
-@@ -592,6 +592,7 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
- 
- out:
- 	tasklet_enable(tasklet);
-+	tasklet_schedule(tasklet);
- 
- 	return ret;
- }
-diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
-index b6c1211..8f4e6070 100644
---- a/drivers/hv/channel_mgmt.c
-+++ b/drivers/hv/channel_mgmt.c
-@@ -21,6 +21,7 @@
- #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- 
- #include <linux/kernel.h>
-+#include <linux/interrupt.h>
- #include <linux/sched.h>
- #include <linux/wait.h>
- #include <linux/mm.h>
-@@ -307,12 +308,13 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
- {
- 	unsigned long flags;
- 	struct vmbus_channel *primary_channel;
--
--	vmbus_release_relid(relid);
-+	struct tasklet_struct *tasklet;
- 
- 	BUG_ON(!channel->rescind);
- 	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));
- 
-+	tasklet = hv_context.event_dpc[channel->target_cpu];
-+	tasklet_disable(tasklet);
- 	if (channel->target_cpu != get_cpu()) {
- 		put_cpu();
- 		smp_call_function_single(channel->target_cpu,
-@@ -321,6 +323,8 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
- 		percpu_channel_deq(channel);
- 		put_cpu();
- 	}
-+	tasklet_enable(tasklet);
-+	tasklet_schedule(tasklet);
- 
- 	if (channel->primary_channel == NULL) {
- 		list_del(&channel->listentry);
-@@ -342,6 +346,8 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
- 			  &primary_channel->alloced_cpus_in_node);
- 
- 	free_channel(channel);
-+
-+	vmbus_release_relid(relid);
- }
- 
- void vmbus_free_channels(void)
-@@ -363,6 +369,7 @@ void vmbus_free_channels(void)
-  */
- static void vmbus_process_offer(struct vmbus_channel *newchannel)
- {
-+	struct tasklet_struct *tasklet;
- 	struct vmbus_channel *channel;
- 	bool fnew = true;
- 	unsigned long flags;
-@@ -409,6 +416,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
- 
- 	init_vp_index(newchannel, dev_type);
- 
-+	tasklet = hv_context.event_dpc[newchannel->target_cpu];
-+	tasklet_disable(tasklet);
- 	if (newchannel->target_cpu != get_cpu()) {
- 		put_cpu();
- 		smp_call_function_single(newchannel->target_cpu,
-@@ -418,6 +427,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
- 		percpu_channel_enq(newchannel);
- 		put_cpu();
- 	}
-+	tasklet_enable(tasklet);
-+	tasklet_schedule(tasklet);
- 
- 	/*
- 	 * This state is used to indicate a successful open
-@@ -469,6 +480,7 @@ err_deq_chan:
- 	list_del(&newchannel->listentry);
- 	mutex_unlock(&vmbus_connection.channel_mutex);
- 
-+	tasklet_disable(tasklet);
- 	if (newchannel->target_cpu != get_cpu()) {
- 		put_cpu();
- 		smp_call_function_single(newchannel->target_cpu,
-@@ -477,6 +489,8 @@ err_deq_chan:
- 		percpu_channel_deq(newchannel);
- 		put_cpu();
- 	}
-+	tasklet_enable(tasklet);
-+	tasklet_schedule(tasklet);
- 
- err_free_chan:
- 	free_channel(newchannel);
--- 
-2.10.2
-

alpine/kernel/patches/0001-VSOCK-Only-allow-host-network-namespace-to-use-AF_VS.patch

@@ -1,30 +0,0 @@
-From afc48615e62910f37b6076f9118c80d2f9613064 Mon Sep 17 00:00:00 2001
-From: Ian Campbell <ian.campbell@docker.com>
-Date: Mon, 4 Apr 2016 14:50:10 +0100
-Subject: [PATCH 1/5] VSOCK: Only allow host network namespace to use AF_VSOCK.
-
-The VSOCK addressing schema does not really lend itself to simply creating an
-alternative end point address within a namespace.
-
-Signed-off-by: Ian Campbell <ian.campbell@docker.com>
----
- net/vmw_vsock/af_vsock.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
-index 8a398b3..0edc54c 100644
---- a/net/vmw_vsock/af_vsock.c
-+++ b/net/vmw_vsock/af_vsock.c
-@@ -1852,6 +1852,9 @@ static const struct proto_ops vsock_stream_ops = {
- static int vsock_create(struct net *net, struct socket *sock,
- 			int protocol, int kern)
- {
-+	if (!net_eq(net, &init_net))
-+		return -EAFNOSUPPORT;
-+
- 	if (!sock)
- 		return -EINVAL;
- 
--- 
-2.10.2
-

alpine/kernel/patches/0004-vmbus-Don-t-spam-the-logs-with-unknown-GUIDs.patch

@@ -1,30 +0,0 @@
-From e8c7a6dee61819c36b77108bc2cddafde26b9876 Mon Sep 17 00:00:00 2001
-From: Rolf Neugebauer <rolf.neugebauer@gmail.com>
-Date: Mon, 23 May 2016 18:55:45 +0100
-Subject: [PATCH 4/5] vmbus: Don't spam the logs with unknown GUIDs
-
-With Hyper-V sockets device types are introduced on the fly. The pr_info()
-then prints a message on every connection, which is way too verbose.  Since
-there doesn't seem to be an easy way to check for registered services,
-disable the pr_info() completely.
-
-Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
----
- drivers/hv/channel_mgmt.c | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
-index 8f4e6070..ef4a512 100644
---- a/drivers/hv/channel_mgmt.c
-+++ b/drivers/hv/channel_mgmt.c
-@@ -147,7 +147,6 @@ static u16 hv_get_dev_type(const uuid_le *guid)
- 		if (!uuid_le_cmp(*guid, vmbus_devs[i].guid))
- 			return i;
- 	}
--	pr_info("Unknown GUID: %pUl\n", guid);
- 	return i;
- }
- 
--- 
-2.10.2
-