pm24.git/include, branch v5.15-rc7

Merge tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2021-10-22T19:08:08Z

Pull ACPI fixes from Rafael Wysocki: "These fix two regressions, one related to ACPI power resources management and one that broke ACPI tools compilation. Specifics: - Stop turning off unused ACPI power resources in an unknown state to address a regression introduced during the 5.14 cycle (Rafael Wysocki). - Fix an ACPI tools build issue introduced recently when the minimal stdarg.h was added (Miguel Bernal Marin)" * tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PM: Do not turn off power resources in unknown state ACPI: tools: fix compilation error

Merge branch 'acpi-tools'

2021-10-22T18:45:10Z

Merge a fix for a recent ACPI tools bild regresson. * acpi-tools: ACPI: tools: fix compilation error

Merge branch 'ucount-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2021-10-22T03:27:17Z

Pull ucounts fixes from Eric Biederman: "There has been one very hard to track down bug in the ucount code that we have been tracking since roughly v5.14 was released. Alex managed to find a reliable reproducer a few days ago and then I was able to instrument the code and figure out what the issue was. It turns out the sigqueue_alloc single atomic operation optimization did not play nicely with ucounts multiple level rlimits. It turned out that either sigqueue_alloc or sigqueue_free could be operating on multiple levels and trigger the conditions for the optimization on more than one level at the same time. To deal with that situation I have introduced inc_rlimit_get_ucounts and dec_rlimit_put_ucounts that just focuses on the optimization and the rlimit and ucount changes. While looking into the big bug I found I couple of other little issues so I am including those fixes here as well. When I have time I would very much like to dig into process ownership of the shared signal queue and see if we could pick a single owner for the entire queue so that all of the rlimits can count to that owner. That should entirely remove the need to call get_ucounts and put_ucounts in sigqueue_alloc and sigqueue_free. It is difficult because Linux unlike POSIX supports setuid that works on a single thread" * 'ucount-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ucounts: Move get_ucounts from cred_alloc_blank to key_change_session_keyring ucounts: Proper error handling in set_cred_ucounts ucounts: Pair inc_rlimit_ucounts with dec_rlimit_ucoutns in commit_creds ucounts: Fix signal ucount refcounting

Merge tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-10-22T01:36:50Z

Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter, and can. We'll have one more fix for a socket accounting regression, it's still getting polished. Otherwise things look fine. Current release - regressions: - revert "vrf: reset skb conntrack connection on VRF rcv", there are valid uses for previous behavior - can: m_can: fix iomap_read_fifo() and iomap_write_fifo() Current release - new code bugs: - mlx5: e-switch, return correct error code on group creation failure Previous releases - regressions: - sctp: fix transport encap_port update in sctp_vtag_verify - stmmac: fix E2E delay mechanism (in PTP timestamping) Previous releases - always broken: - netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr - netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of init - netfilter: ipvs: make global sysctl read-only in non-init netns - tcp: md5: fix selection between vrf and non-vrf keys - ipv6: count rx stats on the orig netdev when forwarding - bridge: mcast: use multicast_membership_interval for IGMPv3 - can: - j1939: fix UAF for rx_kref of j1939_priv abort sessions on receiving bad messages - isotp: fix TX buffer concurrent access in isotp_sendmsg() fix return error on FC timeout on TX path - ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited - hns3: schedule the polling again when allocation fails, prevent stalls - drivers: add missing of_node_put() when aborting for_each_available_child_of_node() - ptp: fix possible memory leak and UAF in ptp_clock_register() - e1000e: fix packet loss in burst mode on Tiger Lake and later - mlx5e: ipsec: fix more checksum offload issues" * tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits) usbnet: sanity check for maxpacket net: enetc: make sure all traffic classes can send large frames net: enetc: fix ethtool counter name for PM0_TERR ptp: free 'vclock_index' in ptp_clock_release() sfc: Don't use netif_info before net_device setup sfc: Export fibre-specific supported link modes net/mlx5e: IPsec: Fix work queue entry ethernet segment checksum flags net/mlx5e: IPsec: Fix a misuse of the software parser's fields net/mlx5e: Fix vlan data lost during suspend flow net/mlx5: E-switch, Return correct error code on group creation failure net/mlx5: Lag, change multipath and bonding to be mutually exclusive ice: Add missing E810 device ids igc: Update I226_K device ID e1000e: Fix packet loss on Tiger Lake and later e1000e: Separate TGP board type from SPT ptp: Fix possible memory leak in ptp_clock_register() net: stmmac: Fix E2E delay mechanism nfc: st95hf: Make spi remove() callback return zero net: hns3: disable sriov before unload hclge layer net: hns3: fix vf reset workqueue cannot exit ...

net/mlx5: Lag, change multipath and bonding to be mutually exclusive

2021-10-20T17:42:49Z

Both multipath and bonding events are changing the HW LAG state independently. Handling one of the features events while the other is already enabled can cause unwanted behavior, for example handling bonding event while multipath enabled will disable the lag and cause multipath to stop working. Fix it by ignoring bonding event while in multipath and ignoring FIB events while in bonding mode. Fixes: 544fe7c2e654 ("net/mlx5e: Activate HW multipath and handle port affinity based on FIB events") Signed-off-by: Maor Dickman Reviewed-by: Roi Dayan Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed

Merge tag 'trace-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2021-10-20T16:02:58Z

Pull tracing fix from Steven Rostedt: "Recursion fix for tracing. While cleaning up some of the tracing recursion protection logic, I discovered a scenario that the current design would miss, and would allow an infinite recursion. Removing an optimization trick that opened the hole fixes the issue and cleans up the code as well" * tag 'trace-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Have all levels of checks prevent recursion

mm/secretmem: fix NULL page->mapping dereference in page_is_secretmem()

2021-10-19T06:22:03Z

Check for a NULL page->mapping before dereferencing the mapping in page_is_secretmem(), as the page's mapping can be nullified while gup() is running, e.g. by reclaim or truncation. BUG: kernel NULL pointer dereference, address: 0000000000000068 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 6 PID: 4173897 Comm: CPU 3/KVM Tainted: G W RIP: 0010:internal_get_user_pages_fast+0x621/0x9d0 Code: <48> 81 7a 68 80 08 04 bc 0f 85 21 ff ff 8 89 c7 be RSP: 0018:ffffaa90087679b0 EFLAGS: 00010046 RAX: ffffe3f37905b900 RBX: 00007f2dd561e000 RCX: ffffe3f37905b934 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffe3f37905b900 ... CR2: 0000000000000068 CR3: 00000004c5898003 CR4: 00000000001726e0 Call Trace: get_user_pages_fast_only+0x13/0x20 hva_to_pfn+0xa9/0x3e0 try_async_pf+0xa1/0x270 direct_page_fault+0x113/0xad0 kvm_mmu_page_fault+0x69/0x680 vmx_handle_exit+0xe1/0x5d0 kvm_arch_vcpu_ioctl_run+0xd81/0x1c70 kvm_vcpu_ioctl+0x267/0x670 __x64_sys_ioctl+0x83/0xa0 do_syscall_64+0x56/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae Link: https://lkml.kernel.org/r/20211007231502.3552715-1-seanjc@google.com Fixes: 1507f51255c9 ("mm: introduce memfd_secret system call to create "secret" memory areas") Signed-off-by: Sean Christopherson Reported-by: Darrick J. Wong Reported-by: Stephen Tested-by: Darrick J. Wong Reviewed-by: David Hildenbrand Reviewed-by: Mike Rapoport Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

elfcore: correct reference to CONFIG_UML

2021-10-19T06:22:03Z

Commit 6e7b64b9dd6d ("elfcore: fix building with clang") introduces special handling for two architectures, ia64 and User Mode Linux. However, the wrong name, i.e., CONFIG_UM, for the intended Kconfig symbol for User-Mode Linux was used. Although the directory for User Mode Linux is ./arch/um; the Kconfig symbol for this architecture is called CONFIG_UML. Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs: UM Referencing files: include/linux/elfcore.h Similar symbols: UML, NUMA Correct the name of the config to the intended one. [akpm@linux-foundation.org: fix um/x86_64, per Catalin] Link: https://lkml.kernel.org/r/20211006181119.2851441-1-catalin.marinas@arm.com Link: https://lkml.kernel.org/r/YV6pejGzLy5ppEpt@arm.com Link: https://lkml.kernel.org/r/20211006082209.417-1-lukas.bulwahn@gmail.com Fixes: 6e7b64b9dd6d ("elfcore: fix building with clang") Signed-off-by: Lukas Bulwahn Cc: Arnd Bergmann Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Catalin Marinas Cc: Barret Rhoden Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/migrate: fix CPUHP state to update node demotion order

2021-10-19T06:22:03Z

The node demotion order needs to be updated during CPU hotplug. Because whether a NUMA node has CPU may influence the demotion order. The update function should be called during CPU online/offline after the node_states[N_CPU] has been updated. That is done in CPUHP_AP_ONLINE_DYN during CPU online and in CPUHP_MM_VMSTAT_DEAD during CPU offline. But in commit 884a6e5d1f93 ("mm/migrate: update node demotion order on hotplug events"), the function to update node demotion order is called in CPUHP_AP_ONLINE_DYN during CPU online/offline. This doesn't satisfy the order requirement. For example, there are 4 CPUs (P0, P1, P2, P3) in 2 sockets (P0, P1 in S0 and P2, P3 in S1), the demotion order is - S0 -> NUMA_NO_NODE - S1 -> NUMA_NO_NODE After P2 and P3 is offlined, because S1 has no CPU now, the demotion order should have been changed to - S0 -> S1 - S1 -> NO_NODE but it isn't changed, because the order updating callback for CPU hotplug doesn't see the new nodemask. After that, if P1 is offlined, the demotion order is changed to the expected order as above. So in this patch, we added CPUHP_AP_MM_DEMOTION_ONLINE and CPUHP_MM_DEMOTION_DEAD to be called after CPUHP_AP_ONLINE_DYN and CPUHP_MM_VMSTAT_DEAD during CPU online and offline, and register the update function on them. Link: https://lkml.kernel.org/r/20210929060351.7293-1-ying.huang@intel.com Fixes: 884a6e5d1f93 ("mm/migrate: update node demotion order on hotplug events") Signed-off-by: "Huang, Ying" Cc: Thomas Gleixner Cc: Dave Hansen Cc: Yang Shi Cc: Zi Yan Cc: Michal Hocko Cc: Wei Xu Cc: Oscar Salvador Cc: David Rientjes Cc: Dan Williams Cc: David Hildenbrand Cc: Greg Thelen Cc: Keith Busch Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/migrate: add CPU hotplug to demotion #ifdef

2021-10-19T06:22:02Z

Once upon a time, the node demotion updates were driven solely by memory hotplug events. But now, there are handlers for both CPU and memory hotplug. However, the #ifdef around the code checks only memory hotplug. A system that has HOTPLUG_CPU=y but MEMORY_HOTPLUG=n would miss CPU hotplug events. Update the #ifdef around the common code. Add memory and CPU-specific #ifdefs for their handlers. These memory/CPU #ifdefs avoid unused function warnings when their Kconfig option is off. [arnd@arndb.de: rework hotplug_memory_notifier() stub] Link: https://lkml.kernel.org/r/20211013144029.2154629-1-arnd@kernel.org Link: https://lkml.kernel.org/r/20210924161255.E5FE8F7E@davehans-spike.ostc.intel.com Fixes: 884a6e5d1f93 ("mm/migrate: update node demotion order on hotplug events") Signed-off-by: Dave Hansen Signed-off-by: Arnd Bergmann Cc: "Huang, Ying" Cc: Michal Hocko Cc: Wei Xu Cc: Oscar Salvador Cc: David Rientjes Cc: Dan Williams Cc: David Hildenbrand Cc: Greg Thelen Cc: Yang Shi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds