When resolving a pathname to its corresponding data, the VFS first ________, then _________ and finally _________.
A) calls the file system's lookup function, checks the inode cache, checks the dentry cache
B) checks the dentry cache, checks the inode cache, calls the file system's lookup function
C) checks the dentry cache, calls the file system's lookup function, returns a file not found error.
D) calls the file system's lookup function, checks the dentry cache, checks the inode cache

Question

Quizplus · Accepted Answer

The Virtual File System (VFS) first checks the dentry cache to quickly resolve the pathname. If not found, it checks the inode cache. If still unresolved, it calls the file system's lookup function to find the data.

When Resolving a Pathname to Its Corresponding Data, the VFS