|  | # SPDX-License-Identifier: GPL-2.0-only | 
|  | config CEPH_FS | 
|  | tristate "Ceph distributed file system" | 
|  | depends on INET | 
|  | select CEPH_LIB | 
|  | select LIBCRC32C | 
|  | select CRYPTO_AES | 
|  | select CRYPTO | 
|  | select NETFS_SUPPORT | 
|  | default n | 
|  | help | 
|  | Choose Y or M here to include support for mounting the | 
|  | experimental Ceph distributed file system.  Ceph is an extremely | 
|  | scalable file system designed to provide high performance, | 
|  | reliable access to petabytes of storage. | 
|  |  | 
|  | More information at https://ceph.io/. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | if CEPH_FS | 
|  | config CEPH_FSCACHE | 
|  | bool "Enable Ceph client caching support" | 
|  | depends on CEPH_FS=m && FSCACHE || CEPH_FS=y && FSCACHE=y | 
|  | help | 
|  | Choose Y here to enable persistent, read-only local | 
|  | caching support for Ceph clients using FS-Cache | 
|  |  | 
|  | endif | 
|  |  | 
|  | config CEPH_FS_POSIX_ACL | 
|  | bool "Ceph POSIX Access Control Lists" | 
|  | depends on CEPH_FS | 
|  | select FS_POSIX_ACL | 
|  | help | 
|  | POSIX Access Control Lists (ACLs) support permissions for users and | 
|  | groups beyond the owner/group/world scheme. | 
|  |  | 
|  | If you don't know what Access Control Lists are, say N | 
|  |  | 
|  | config CEPH_FS_SECURITY_LABEL | 
|  | bool "CephFS Security Labels" | 
|  | depends on CEPH_FS && SECURITY | 
|  | help | 
|  | Security labels support alternative access control models | 
|  | implemented by security modules like SELinux. This option | 
|  | enables an extended attribute handler for file security | 
|  | labels in the Ceph filesystem. | 
|  |  | 
|  | If you are not using a security module that requires using | 
|  | extended attributes for file security labels, say N. |