How does the Linux Kernel handle memory allocation for different types of file systems?

Linux supports a variety of file systems, each with its unique characteristics and requirements. Understanding how the Linux Kernel manages memory for these diverse file systems is crucial for developers and system administrators aiming to optimize performance. From traditional file systems like ext4 to newer ones like Btrfs or ZFS, each requires distinct memory allocation strategies for metadata, caching, and data storage. How does the Linux Kernel differentiate and optimally allocate memory resources for these varied file systems, and what mechanisms are in place to ensure efficient utilization across different use cases?