kernel.git/net/sched/act_api.c, branch linux-5.5.y

sched: act: count in the size of action flags bitfield

2020-04-08T07:10:04Z

commit 1521a67e6016664941f0917d50cb20053a8826a2 upstream. The put of the flags was added by the commit referenced in fixes tag, however the size of the message was not extended accordingly. Fix this by adding size of the flags bitfield to the message size. Fixes: e38226786022 ("net: sched: update action implementations to support flags") Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2019-11-26T23:42:43Z

Pull RCU updates from Ingo Molnar: "The main changes in this cycle were: - Dynamic tick (nohz) updates, perhaps most notably changes to force the tick on when needed due to lengthy in-kernel execution on CPUs on which RCU is waiting. - Linux-kernel memory consistency model updates. - Replace rcu_swap_protected() with rcu_prepace_pointer(). - Torture-test updates. - Documentation updates. - Miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer() net/sched: Replace rcu_swap_protected() with rcu_replace_pointer() net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer() net/core: Replace rcu_swap_protected() with rcu_replace_pointer() bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer() fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer() drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer() drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer() x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer() rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer() rcu: Suppress levelspread uninitialized messages rcu: Fix uninitialized variable in nocb_gp_wait() rcu: Update descriptions for rcu_future_grace_period tracepoint rcu: Update descriptions for rcu_nocb_wake tracepoint rcu: Remove obsolete descriptions for rcu_barrier tracepoint rcu: Ensure that ->rcu_urgent_qs is set before resched IPI workqueue: Convert for_each_wq to use built-in list check rcu: Several rcu_segcblist functions can be static rcu: Remove unused function hlist_bl_del_init_rcu() Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch() ...

net/sched: actions: remove unused 'order'

2019-11-12T20:11:22Z

after commit 4097e9d250fb ("net: sched: don't use tc_action->order during action dump"), 'act->order' is initialized but then it's no more read, so we can just remove this member of struct tc_action. CC: Ivan Vecera Signed-off-by: Davide Caratti Acked-by: Jiri Pirko Reviewed-by: Ivan Vecera Signed-off-by: David S. Miller

net_sched: add TCA_STATS_PKT64 attribute

2019-11-06T02:20:55Z

Now the kernel uses 64bit packet counters in scheduler layer, we want to export these counters to user space. Instead risking breaking user space by adding fields to struct gnet_stats_basic, add a new TCA_STATS_PKT64. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

2019-10-31T08:33:19Z

Pull RCU and LKMM changes from Paul E. McKenney: - Documentation updates. - Miscellaneous fixes. - Dynamic tick (nohz) updates, perhaps most notably changes to force the tick on when needed due to lengthy in-kernel execution on CPUs on which RCU is waiting. - Replace rcu_swap_protected() with rcu_prepace_pointer(). - Torture-test updates. - Linux-kernel memory consistency model updates. Signed-off-by: Ingo Molnar

net: sched: update action implementations to support flags

2019-10-31T01:07:51Z

Extend struct tc_action with new "tcfa_flags" field. Set the field in tcf_idr_create() function and provide new helper tcf_idr_create_from_flags() that derives 'cpustats' boolean from flags value. Update individual hardware-offloaded actions init() to pass their "flags" argument to new helper in order to skip percpu stats allocation when user requested it through flags. Signed-off-by: Vlad Buslov Signed-off-by: David S. Miller

net: sched: extend TCA_ACT space with TCA_ACT_FLAGS

2019-10-31T01:07:50Z

Extend TCA_ACT space with nla_bitfield32 flags. Add TCA_ACT_FLAGS_NO_PERCPU_STATS as the only allowed flag. Parse the flags in tcf_action_init_1() and pass resulting value as additional argument to a_o->init(). Signed-off-by: Vlad Buslov Signed-off-by: David S. Miller

net: sched: modify stats helper functions to support regular stats

2019-10-31T01:07:50Z

Modify stats update helper functions introduced in previous patches in this series to fallback to regular tc_action->tcfa_{b|q}stats if cpu stats are not allocated for the action argument. If regular non-percpu allocated counters are in use, then obtain action tcfa_lock while modifying them. Signed-off-by: Vlad Buslov Acked-by: Jiri Pirko Signed-off-by: David S. Miller

net: sched: extract common action counters update code into function

2019-10-31T01:07:50Z

Currently, all implementations of tc_action_ops->stats_update() callback have almost exactly the same implementation of counters update code (besides gact which also updates drop counter). In order to simplify support for using both percpu-allocated and regular action counters depending on run-time flag in following patches, extract action counters update code into standalone function in act API. This commit doesn't change functionality. Signed-off-by: Vlad Buslov Acked-by: Jiri Pirko Signed-off-by: David S. Miller

net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()

2019-10-30T15:45:48Z

This commit replaces the use of rcu_swap_protected() with the more intuitively appealing rcu_replace_pointer() as a step towards removing rcu_swap_protected(). Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/ Reported-by: Linus Torvalds [ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ] Signed-off-by: Paul E. McKenney Cc: Jamal Hadi Salim Cc: Cong Wang Cc: Jiri Pirko Cc: "David S. Miller" Cc: Cc: