Struct tvec_base

Author: pnlm

August undefined, 2024

WebAug 28, 2010 · Originally Posted by crabboy. In C, static means that the function is only visible within the same source file. inline is a suggestion to the compiler to replace the function call with the code within the function. This is done to reduce the overhead of a function call. Pushing the parameters on the stack then a jump. Web- * of base in timer_list is guaranteed to be zero. Use them for flags. - * * A deferrable timer will work normally when the system is busy, but * will not cause a CPU to come out of idle just to service it; instead, * the timer will be serviced when the CPU eventually wakes up with a @@ -65,17 +58,18 @@ extern struct tvec_base boot_tvec_bases;

Add support for deferrable timers (respun) [LWN.net]

Weblinux操作系统下，加载驱动的方式有二：静态加载驱动；动态加载驱动；作为前者，静态加载驱动是通过将驱动程序编译到内核而进行的一系列配置操作；对于后者而言则是向内核注册设备信息，从而在kernel启动后，再通过insmod指令，关联好主 Webstruct tvec_base; struct timer_list {/* * All fields that change during normal runtime grouped to the * same cacheline */ struct list_head entry; unsigned long expires; struct tvec_base * base; void (* function)(unsigned long); unsigned long data; int slack; #ifdef CONFIG_TIMER_STATS: int start_pid; void * start_site; char start_comm [16]; # ... cpccbl3016

[tip:timers/core] timer: Generalize timer->base flags handling

WebIn C, static means that the function is only visible within the same source file. inline is a suggestion to the compiler to replace the function call with the code within the function. WebJan 20, 2013 · Look at line 707 (RIP) and we do following. 707 struct tvec_base *prelock_base = timer->base; 0xffffffff8106ecf3 <+35>: mov 0x0 (%r13),%rbx backtrace says rbx is 0000000000000000. and rbx should be containing the value of timer->base. So I suspect that timer->base is null and that's why we are looping. Webstruct tvec_base { spinlock_t lock; struct timer_list *running_timer; unsigned long timer_jiffies; unsigned long next_timer; struct tvec_root tv1; struct tvec tv2; struct tvec tv3; struct tvec tv4; struct tvec tv5; }; static inline void timer_set_base ( struct timer_list *timer, struct tvec_base *new_base) { timer-> base = new_base; } maglie calcio shop

0013241: Kernel panics: Bad RIP value and unable to handle

Web> Regardless of the previous CPU a timer was on, add_timer_on() > currently simply sets timer->flags to the new CPU. As the caller must > be seeing the timer as idle, this is locally fine, but the timer > leaving the old base while unlocked can lead to race conditions as > follows. nice detective work. This has been there forever. WebYes. A Vec is the owned variant of a & [T]. & [T] is a reference to a set of T s laid out sequentially in memory (a.k.a. a slice ). It represents a pointer to the beginning of the … cpccca3005bWeb*timer: catching new timers in migrated tvec_base @ 2013-12-06 20:13 Sherman Yin 0 siblings, 0 replies; only message in thread From: Sherman Yin @ 2013-12-06 20:13 UTC (permalink / raw) To: Thomas Gleixner; +Cc: linux-kernel Hi all, I'm looking for feedback regarding explicitly invalidating the list_heads in tvec_base.tv1 .. tv5 after a migration, for … cpccca3003

"WebAug 19, 2024 · 函数：. int event_base_loop (struct event_base *, int); 等待事件被触发，然后调用它们的回调函数。. 这是 event_base_dispatch的更灵活版本。. 默认情况下，这个循环会一直运行，直到没有添加的事件，或者直到调用了event_base_loopbreak ()或者evenet_base_loopexit ().你可以通过flags ... " - Struct tvec_base

Struct tvec_base

Understanding per cpu structure in linux kernel

Web- tvec_base_t *base = &per_cpu(tvec_bases, cpu); + tvec_base_t *base = per_cpu(tvec_bases, cpu); unsigned long flags; BUG_ON(timer_pending(timer) !timer … Webstruct timer_list is defined in include/linux/timer.h. 10 struct timer_list {11 struct list_head entry; 12 unsigned long expires; 13 14 void (*function)(unsigned long); 15 unsigned long …

Did you know?

Web1 /* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_TIMER_H 3#define _LINUX_TIMER_H 4 5#include 6#include 7#include 8#include 9#include 10 11struct tvec_base; 12 13struct timer_list { 14 /* 15 * All fields that change during normal runtime … WebThe documentation for this struct was generated from the following files: type_mat.hpp; type_vec3.hpp; rtabmap Author(s): Mathieu Labbe autogenerated on Mon Dec 14 2024 …

Webtypedef struct tvec_t_base_s tvec_base_t; -static DEFINE_PER_CPU(tvec_base_t, tvec_bases); +static DEFINE_PER_CPU(tvec_base_t *, tvec_bases); +static tvec_base_t boot_tvec_bases; static inline void set_running_timer(tvec_base_t *base, struct timer_list *timer) @@ -157,7 +158,7 @@ EXPORT_SYMBOL(__init_timer_base); WebA struct in the C programming language (and many derivatives) is a composite data type (or record) declaration that defines a physically grouped list of variables under one name in a …

WebApr 11, 2024 · struct timer_list {struct list_head entry; unsigned long expires; /* 定时器超时时间，单位是节拍数 */ struct tvec_base * base; void (* function) (unsigned long); /* 定时处理函数 */ unsigned long data; /* 要传递给 function 函数的参数 */ int slack;}; 初始化定时器函数： ①init_timer：初始化timer_list类型 ... WebMar 27, 2007 · It uses last bit in 'base' pointer of timer_list structure to store this deferrable timer flag. __next_timer_interrupt () function skips over these deferrable timers when CPU looks for next timer event for which it has to wake up. This is exported by a new interface init_timer_deferrable () that can be called in place of regular init_timer ().

Web* * When the timer's base is locked and removed from the list, the * TIMER_MIGRATING flag is set, FIXME */ static struct tvec_base * lock_timer_base (struct timer_list * timer, unsigned long * flags) __acquires (timer-> base-> lock) {for (;;) {struct tvec_base * base; u32 tf; /* * We need to use READ_ONCE() here, otherwise the compiler * might ...

Web17 rows · It indeed has embedded timer_list, and it's size falls into kmalloc-512 slab. timer_list offset is 0x58, looking back at "kmem" output we see that the base address for … cpccca3005Web//timer_list-4.15之前版本 struct timer_list {struct list_head entry //定时器列表 unsigned long expires; //设置定时器到期时间，用jiffies作为基准值 struct tvec_base * base //管理检测时间 void (* function)(unsigned long); //类似中断服务函数，设置定时器到时后处理的函数 unsigned long data; //中断服务函数的参数 } cpccca3012aWeb@@ -58,7 +58,9 @@ extern struct tvec_base boot_tvec_bases; * the timer will be serviced when the CPU eventually wakes up with a * subsequent non-deferrable timer. */-#define TBASE_DEFERRABLE_FLAG (0x1) +#define TIMER_DEFERRABLE 0x1LU + +#define TIMER_FLAG_MASK 0x1LU maglie cashmere donnaWebThe material number i must be in the range 1-50. create keyword. begin f f. Set the location of the first node of the cable. If the first node is inside an excavation, it will be moded to … maglie calcio storicheWebtvec_base_t: Functions : DECLARE_INITVAR (dde26_timer) struct tvec_base boot_tvec_bases : __attribute__ ((unused)) static : DEFINE_PER_CPU (struct tvec_base *, … maglie calcio serie a 2022WebMay 31, 2024 · In line 5 of the code, we first get a struct tasklet_struct object, and then traverse the list, call the function pointed to by the func member, and pass the data member as a parameter. Data is the parameter passed to the lower half of the function. cpccca3015aWebSince the last 3 bits of the tvec_base is guaranteed to be 0, and since the last bit is being used to indicate deferrable timers, I'm using the second last bit to indicate cpu-pinned … cpcc bolton