How Linux’s VFS Handles open() – Inside the Kernel’s File System Layers

This article explains the Linux virtual file system (VFS) architecture, detailing the key data structures such as superblock, inode, dentry, and file objects, and walks through the step‑by‑step process of the open() system call from user space down to kernel internals.

Kernelopen syscallvfs

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How Linux’s VFS Handles open() – Inside the Kernel’s File System Layers