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linux-insides
  • README
  • Summary
    • Booting
      • From bootloader to kernel
      • First steps in the kernel setup code
      • Video mode initialization and transition to protected mode
      • Transition to 64-bit mode
      • Kernel decompression
      • Kernel load address randomization
    • Initialization
      • First steps in the kernel
      • Early interrupts handler
      • Last preparations before the kernel entry point
      • Kernel entry point
      • Continue architecture-specific boot-time initializations
      • Architecture-specific initializations, again...
      • End of the architecture-specific initializations, almost...
      • Scheduler initialization
      • RCU initialization
      • End of initialization
    • Interrupts
      • Introduction
      • Start to dive into interrupts
      • Interrupt handlers
      • Initialization of non-early interrupt gates
      • Implementation of some exception handlers
      • Handling Non-Maskable interrupts
      • Dive into external hardware interrupts
      • Initialization of external hardware interrupts structures
      • Softirq, Tasklets and Workqueues
      • Last part
    • System calls
      • Introduction to system calls
      • How the Linux kernel handles a system call
      • vsyscall and vDSO
      • How the Linux kernel runs a program
      • Implementation of the open system call
      • Limits on resources in Linux
    • Timers and time management
      • Introduction
      • Clocksource framework
      • The tick broadcast framework and dyntick
      • Introduction to timers
      • Clockevents framework
      • x86 related clock sources
      • Time related system calls
    • Synchronization primitives
      • Introduction to spinlocks
      • Queued spinlocks
      • Semaphores
      • Mutex
      • Reader/Writer semaphores
      • SeqLock
      • RCU
      • Lockdep
    • Memory management
      • Memblock
      • Fixmaps and ioremap
      • kmemcheck
    • Cgroups
      • Introduction to Control Groups
    • SMP
    • Concepts
      • Per-CPU variables
      • Cpumasks
      • The initcall mechanism
      • Notification Chains
    • Data Structures in the Linux Kernel
      • Doubly linked list
      • Radix tree
      • Bit arrays
    • Theory
      • Paging
      • Elf64
      • Inline assembly
      • CPUID
      • MSR
    • Initial ram disk
    • Misc
      • Linux kernel development
      • How the kernel is compiled
      • Linkers
      • Program startup process in userspace
      • Write and Submit your first Linux kernel Patch
      • Data types in the kernel
    • KernelStructures
      • IDT
    • Useful links
    • Contributors
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  1. Summary

Synchronization primitives

This chapter describes synchronization primitives in the Linux kernel.

  • Introduction to spinlocks - the first part of this chapter describes implementation of spinlock mechanism in the Linux kernel.

  • Queued spinlocks - the second part describes another type of spinlocks - queued spinlocks.

  • Semaphores - this part describes implementation of semaphore synchronization primitive in the Linux kernel.

  • Mutual exclusion - this part describes - mutex in the Linux kernel.

  • Reader/Writer semaphores - this part describes special type of semaphores - reader/writer semaphores.

  • Sequential locks - this part describes sequential locks in the Linux kernel.

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Last updated 4 years ago

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