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#vfs

2 posts

FreeBSDDeep Dive July 11, 2026 5 min read

FreeBSD's VFS Layer: How Multiple Filesystems Share One Interface

How the Virtual File System abstraction lets FreeBSD run UFS, ZFS, tmpfs, and NFS behind the exact same open()/read()/write() calls, and what that abstraction actually costs.

#vfs#filesystems#kernel

LinuxDeep Dive July 9, 2026 4 min read

The Linux Virtual File System: One Interface, Many Filesystems

How the VFS layer lets ext4, XFS, Btrfs, NFS, and procfs all answer to the same read/write/open calls.

#vfs#filesystems#kernel