# Synchronization primitives in the Linux kernel. This chapter describes synchronization primitives in the Linux kernel. * [Introduction to spinlocks](http://0xax.gitbooks.io/linux-insides/content/SyncPrim/sync-1.html) - the first part of this chapter describes implementation of spinlock mechanism in the Linux kernel. * [Queued spinlocks](https://0xax.gitbooks.io/linux-insides/content/SyncPrim/sync-2.html) - the second part describes another type of spinlocks - queued spinlocks. * [Semaphores](https://0xax.gitbooks.io/linux-insides/content/SyncPrim/sync-3.html) - this part describes implementation of `semaphore` synchronization primitive in the Linux kernel. * [Mutual exclusion](https://0xax.gitbooks.io/linux-insides/content/SyncPrim/sync-4.html) - this part describes - `mutex` in the Linux kernel. * [Reader/Writer semaphores](https://0xax.gitbooks.io/linux-insides/content/SyncPrim/sync-5.html) - this part describes special type of semaphores - `reader/writer` semaphores.