1# SPDX-License-Identifier: GPL-2.0-only 2config REISERFS_FS 3 tristate "Reiserfs support (deprecated)" 4 select CRC32 5 select LEGACY_DIRECT_IO 6 help 7 Reiserfs is deprecated and scheduled to be removed from the kernel 8 in 2025. If you are still using it, please migrate to another 9 filesystem or tell us your usecase for reiserfs. 10 11 Reiserfs stores not just filenames but the files themselves in a 12 balanced tree. Uses journalling. 13 14 Balanced trees are more efficient than traditional file system 15 architectural foundations. 16 17 In general, ReiserFS is as fast as ext2, but is very efficient with 18 large directories and small files. Additional patches are needed 19 for NFS and quotas, please see 20 <https://reiser4.wiki.kernel.org/index.php/Main_Page> for links. 21 22 It is more easily extended to have features currently found in 23 database and keyword search systems than block allocation based file 24 systems are. The next version will be so extended, and will support 25 plugins consistent with our motto ``It takes more than a license to 26 make source code open.'' 27 28 Read <https://reiser4.wiki.kernel.org/index.php/Main_Page> 29 to learn more about reiserfs. 30 31 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. 32 33 If you like it, you can pay us to add new features to it that you 34 need, buy a support contract, or pay us to port it to another OS. 35 36config REISERFS_CHECK 37 bool "Enable reiserfs debug mode" 38 depends on REISERFS_FS 39 help 40 If you set this to Y, then ReiserFS will perform every check it can 41 possibly imagine of its internal consistency throughout its 42 operation. It will also go substantially slower. More than once we 43 have forgotten that this was on, and then gone despondent over the 44 latest benchmarks.:-) Use of this option allows our team to go all 45 out in checking for consistency when debugging without fear of its 46 effect on end users. If you are on the verge of sending in a bug 47 report, say Y and you might get a useful error message. Almost 48 everyone should say N. 49 50config REISERFS_PROC_INFO 51 bool "Stats in /proc/fs/reiserfs" 52 depends on REISERFS_FS && PROC_FS 53 help 54 Create under /proc/fs/reiserfs a hierarchy of files, displaying 55 various ReiserFS statistics and internal data at the expense of 56 making your kernel or module slightly larger (+8 KB). This also 57 increases the amount of kernel memory required for each mount. 58 Almost everyone but ReiserFS developers and people fine-tuning 59 reiserfs or tracing problems should say N. 60 61config REISERFS_FS_XATTR 62 bool "ReiserFS extended attributes" 63 depends on REISERFS_FS 64 help 65 Extended attributes are name:value pairs associated with inodes by 66 the kernel or by users (see the attr(5) manual page for details). 67 68 If unsure, say N. 69 70config REISERFS_FS_POSIX_ACL 71 bool "ReiserFS POSIX Access Control Lists" 72 depends on REISERFS_FS_XATTR 73 select FS_POSIX_ACL 74 help 75 Posix Access Control Lists (ACLs) support permissions for users and 76 groups beyond the owner/group/world scheme. 77 78 If you don't know what Access Control Lists are, say N 79 80config REISERFS_FS_SECURITY 81 bool "ReiserFS Security Labels" 82 depends on REISERFS_FS_XATTR 83 help 84 Security labels support alternative access control models 85 implemented by security modules like SELinux. This option 86 enables an extended attribute handler for file security 87 labels in the ReiserFS filesystem. 88 89 If you are not using a security module that requires using 90 extended attributes for file security labels, say N. 91