1# SPDX-License-Identifier: GPL-2.0-only 2config REISERFS_FS 3 tristate "Reiserfs support (deprecated)" 4 select BUFFER_HEAD 5 select CRC32 6 select LEGACY_DIRECT_IO 7 help 8 Reiserfs is deprecated and scheduled to be removed from the kernel 9 in 2025. If you are still using it, please migrate to another 10 filesystem or tell us your usecase for reiserfs. 11 12 Reiserfs stores not just filenames but the files themselves in a 13 balanced tree. Uses journalling. 14 15 Balanced trees are more efficient than traditional file system 16 architectural foundations. 17 18 In general, ReiserFS is as fast as ext2, but is very efficient with 19 large directories and small files. Additional patches are needed 20 for NFS and quotas, please see 21 <https://reiser4.wiki.kernel.org/index.php/Main_Page> for links. 22 23 It is more easily extended to have features currently found in 24 database and keyword search systems than block allocation based file 25 systems are. The next version will be so extended, and will support 26 plugins consistent with our motto ``It takes more than a license to 27 make source code open.'' 28 29 Read <https://reiser4.wiki.kernel.org/index.php/Main_Page> 30 to learn more about reiserfs. 31 32 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. 33 34 If you like it, you can pay us to add new features to it that you 35 need, buy a support contract, or pay us to port it to another OS. 36 37config REISERFS_CHECK 38 bool "Enable reiserfs debug mode" 39 depends on REISERFS_FS 40 help 41 If you set this to Y, then ReiserFS will perform every check it can 42 possibly imagine of its internal consistency throughout its 43 operation. It will also go substantially slower. More than once we 44 have forgotten that this was on, and then gone despondent over the 45 latest benchmarks.:-) Use of this option allows our team to go all 46 out in checking for consistency when debugging without fear of its 47 effect on end users. If you are on the verge of sending in a bug 48 report, say Y and you might get a useful error message. Almost 49 everyone should say N. 50 51config REISERFS_PROC_INFO 52 bool "Stats in /proc/fs/reiserfs" 53 depends on REISERFS_FS && PROC_FS 54 help 55 Create under /proc/fs/reiserfs a hierarchy of files, displaying 56 various ReiserFS statistics and internal data at the expense of 57 making your kernel or module slightly larger (+8 KB). This also 58 increases the amount of kernel memory required for each mount. 59 Almost everyone but ReiserFS developers and people fine-tuning 60 reiserfs or tracing problems should say N. 61 62config REISERFS_FS_XATTR 63 bool "ReiserFS extended attributes" 64 depends on REISERFS_FS 65 help 66 Extended attributes are name:value pairs associated with inodes by 67 the kernel or by users (see the attr(5) manual page for details). 68 69 If unsure, say N. 70 71config REISERFS_FS_POSIX_ACL 72 bool "ReiserFS POSIX Access Control Lists" 73 depends on REISERFS_FS_XATTR 74 select FS_POSIX_ACL 75 help 76 Posix Access Control Lists (ACLs) support permissions for users and 77 groups beyond the owner/group/world scheme. 78 79 If you don't know what Access Control Lists are, say N 80 81config REISERFS_FS_SECURITY 82 bool "ReiserFS Security Labels" 83 depends on REISERFS_FS_XATTR 84 help 85 Security labels support alternative access control models 86 implemented by security modules like SELinux. This option 87 enables an extended attribute handler for file security 88 labels in the ReiserFS filesystem. 89 90 If you are not using a security module that requires using 91 extended attributes for file security labels, say N. 92