Page object caching for variably sized access control lists in data storage systems

摘要

Technologies are described herein for caching variably sized access control lists (ACLs) in a data storage system utilizing page object caching. A request to access a file is received. An inode number of the requested file is identified. A hash key based on the inode number and a predefined hash value is determined. A determination is made as to whether the hash key is contained in a hash list. In response to determining that the hash key is contained in the hash list, access to a page object in the memory is provided. The page object contains an access control list (ACL) associated with the requested file. The ACL is retrieved from the page object.

主权项

1. A computer-implemented method for caching variably sized access control lists (ACLs) in a data storage system having a memory and a disk, the computer-implemented method comprising computer-implemented operations for:
receiving a request to access a file; identifying an inode number of the requested file; determining a hash key based on the inode number and a predefined hash value; determining whether the hash key is contained in a hash list; in response to determining that the hash key is contained in the hash list, providing access to a page object in the memory, the page object storing a plurality of access control lists (ACLs) including an ACL associated with the requested file; and retrieving the ACL associated with the requested file from the page object.