Cache for identifiers representing merged access control information

A system comprising:

• a processing system;
• a file system;
• and
• computer-readable storage media storing instructions that, when executed, cause the file system to perform operations comprising:
• receiving, from an application, a request to store an object in a directory, wherein the object is associated with a first identifier representing first access control information and a second identifier representing second access control information;
• creating, for the object, a first merged identifier based on the first identifier and the second identifier;
• determining that an entry in a cache includes a second merged identifier that matches the first merged identifier;
• in response to determining that the entry in the cache includes the second merged identifier, associating the object with merged access control information in the entry in the cache using a pointer, wherein:
• the merged access control information is based on the first access control information and the second access control information;
• and
• the merged access control information is associated with another object;
• and
• storing the object in the directory with the pointer.

Computer-readable storage media storing instructions that, when executed by a processing system, cause a file system to perform operations comprising:

• receiving, from an application, a request to store an object in a directory, wherein the object is associated with a first identifier representing first access control information and a second identifier representing second access control information;
• creating, for the object, a first merged identifier based on the first identifier and the second identifier;
• determining that an entry in a cache includes a second merged identifier that matches the first merged identifier;
• in response to determining that the entry in the cache includes the second merged identifier, associating the object with merged access control information in the entry in the cache using a pointer, wherein:
• the merged access control information is based on the first access control information and the second access control information;
• and
• the merged access control information is associated with another object;
• and
• storing the object in the directory with the pointer.