1menu "XFS support" 2 3config XFS_FS 4 tristate "XFS filesystem support" 5 select EXPORTFS if NFSD!=n 6 help 7 XFS is a high performance journaling filesystem which originated 8 on the SGI IRIX platform. It is completely multi-threaded, can 9 support large files and large filesystems, extended attributes, 10 variable block sizes, is extent based, and makes extensive use of 11 Btrees (directories, extents, free space) to aid both performance 12 and scalability. 13 14 Refer to the documentation at <http://oss.sgi.com/projects/xfs/> 15 for complete details. This implementation is on-disk compatible 16 with the IRIX version of XFS. 17 18 To compile this file system support as a module, choose M here: the 19 module will be called xfs. Be aware, however, that if the file 20 system of your root partition is compiled as a module, you'll need 21 to use an initial ramdisk (initrd) to boot. 22 23config XFS_EXPORT 24 bool 25 default y if XFS_FS && EXPORTFS 26 27config XFS_RT 28 bool "Realtime support (EXPERIMENTAL)" 29 depends on XFS_FS && EXPERIMENTAL 30 help 31 If you say Y here you will be able to mount and use XFS filesystems 32 which contain a realtime subvolume. The realtime subvolume is a 33 separate area of disk space where only file data is stored. The 34 realtime subvolume is designed to provide very deterministic 35 data rates suitable for media streaming applications. 36 37 See the xfs man page in section 5 for a bit more information. 38 39 This feature is unsupported at this time, is not yet fully 40 functional, and may cause serious problems. 41 42 If unsure, say N. 43 44config XFS_QUOTA 45 bool "Quota support" 46 depends on XFS_FS 47 help 48 If you say Y here, you will be able to set limits for disk usage on 49 a per user and/or a per group basis under XFS. XFS considers quota 50 information as filesystem metadata and uses journaling to provide a 51 higher level guarantee of consistency. The on-disk data format for 52 quota is also compatible with the IRIX version of XFS, allowing a 53 filesystem to be migrated between Linux and IRIX without any need 54 for conversion. 55 56 If unsure, say N. More comprehensive documentation can be found in 57 README.quota in the xfsprogs package. XFS quota can be used either 58 with or without the generic quota support enabled (CONFIG_QUOTA) - 59 they are completely independent subsystems. 60 61config XFS_SECURITY 62 bool "Security Label support" 63 depends on XFS_FS 64 help 65 Security labels support alternative access control models 66 implemented by security modules like SELinux. This option 67 enables an extended attribute namespace for inode security 68 labels in the XFS filesystem. 69 70 If you are not using a security module that requires using 71 extended attributes for inode security labels, say N. 72 73config XFS_POSIX_ACL 74 bool "POSIX ACL support" 75 depends on XFS_FS 76 help 77 POSIX Access Control Lists (ACLs) support permissions for users and 78 groups beyond the owner/group/world scheme. 79 80 To learn more about Access Control Lists, visit the POSIX ACLs for 81 Linux website <http://acl.bestbits.at/>. 82 83 If you don't know what Access Control Lists are, say N. 84 85endmenu 86