#ifndef __NET_TC_SAMPLE_H #define __NET_TC_SAMPLE_H #include #include #include struct tcf_sample { struct tc_action common; u32 rate; bool truncate; u32 trunc_size; struct psample_group __rcu *psample_group; u32 psample_group_num; struct list_head tcfm_list; struct rcu_head rcu; }; #define to_sample(a) ((struct tcf_sample *)a) static inline bool is_tcf_sample(const struct tc_action *a) { #ifdef CONFIG_NET_CLS_ACT return a->ops && a->ops->type == TCA_ACT_SAMPLE; #else return false; #endif } static inline __u32 tcf_sample_rate(const struct tc_action *a) { return to_sample(a)->rate; } static inline bool tcf_sample_truncate(const struct tc_action *a) { return to_sample(a)->truncate; } static inline int tcf_sample_trunc_size(const struct tc_action *a) { return to_sample(a)->trunc_size; } static inline struct psample_group * tcf_sample_psample_group(const struct tc_action *a) { return rcu_dereference(to_sample(a)->psample_group); } #endif /* __NET_TC_SAMPLE_H */ lite-cleanup'>emaclite-cleanup net-next plumbingsTobias Klauser
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /fs/xfs/libxfs/xfs_bmap.h
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_bmap.h')