Optimized network file system client for read-only exports/mounts

Abstract

A mechanism is provided in a data processing system comprising at least one processor and a memory comprising instructions which, when executed by the at least one processor, causes the at least one processor to implement a network protocol based file system client for read-only exports. The file system client receives a mount request to mount an export at a file system server. The file system client stores an access type of the mounted export. Responsive to the file system client receiving from a user a modification request to perform a modification on an object in the mounted export, the file system client sends an attribute check request to the file system server. Responsive to the file system client receiving a first read-only file system error from the file system server, the file system client sets a read-only file system error flag. Responsive to the file system client receiving a subsequent modification request to perform a modification on an object in the mounted export, the file system client determines whether the read-only file system error flag is set. Responsive to the file system client determining that the read-only file system error flag is set and the access type of the export is read-only, the file system client returns a second read-only file system error to the user.