1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 2b16ecfe2SAlexey Dobriyanconfig REISERFS_FS 3*eb103a51SJan Kara tristate "Reiserfs support (deprecated)" 4651d0623SColy Li select CRC32 5b16ecfe2SAlexey Dobriyan help 6*eb103a51SJan Kara Reiserfs is deprecated and scheduled to be removed from the kernel 7*eb103a51SJan Kara in 2025. If you are still using it, please migrate to another 8*eb103a51SJan Kara filesystem or tell us your usecase for reiserfs. 9*eb103a51SJan Kara 10*eb103a51SJan Kara Reiserfs stores not just filenames but the files themselves in a 11*eb103a51SJan Kara balanced tree. Uses journalling. 12b16ecfe2SAlexey Dobriyan 13b16ecfe2SAlexey Dobriyan Balanced trees are more efficient than traditional file system 14b16ecfe2SAlexey Dobriyan architectural foundations. 15b16ecfe2SAlexey Dobriyan 16b16ecfe2SAlexey Dobriyan In general, ReiserFS is as fast as ext2, but is very efficient with 17b16ecfe2SAlexey Dobriyan large directories and small files. Additional patches are needed 18631dd1a8SJustin P. Mattock for NFS and quotas, please see 19631dd1a8SJustin P. Mattock <https://reiser4.wiki.kernel.org/index.php/Main_Page> for links. 20b16ecfe2SAlexey Dobriyan 21b16ecfe2SAlexey Dobriyan It is more easily extended to have features currently found in 22b16ecfe2SAlexey Dobriyan database and keyword search systems than block allocation based file 23b16ecfe2SAlexey Dobriyan systems are. The next version will be so extended, and will support 24b16ecfe2SAlexey Dobriyan plugins consistent with our motto ``It takes more than a license to 25b16ecfe2SAlexey Dobriyan make source code open.'' 26b16ecfe2SAlexey Dobriyan 27631dd1a8SJustin P. Mattock Read <https://reiser4.wiki.kernel.org/index.php/Main_Page> 28631dd1a8SJustin P. Mattock to learn more about reiserfs. 29b16ecfe2SAlexey Dobriyan 30b16ecfe2SAlexey Dobriyan Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. 31b16ecfe2SAlexey Dobriyan 32b16ecfe2SAlexey Dobriyan If you like it, you can pay us to add new features to it that you 33b16ecfe2SAlexey Dobriyan need, buy a support contract, or pay us to port it to another OS. 34b16ecfe2SAlexey Dobriyan 35b16ecfe2SAlexey Dobriyanconfig REISERFS_CHECK 36b16ecfe2SAlexey Dobriyan bool "Enable reiserfs debug mode" 37b16ecfe2SAlexey Dobriyan depends on REISERFS_FS 38b16ecfe2SAlexey Dobriyan help 39b16ecfe2SAlexey Dobriyan If you set this to Y, then ReiserFS will perform every check it can 40b16ecfe2SAlexey Dobriyan possibly imagine of its internal consistency throughout its 41b16ecfe2SAlexey Dobriyan operation. It will also go substantially slower. More than once we 42b16ecfe2SAlexey Dobriyan have forgotten that this was on, and then gone despondent over the 43b16ecfe2SAlexey Dobriyan latest benchmarks.:-) Use of this option allows our team to go all 44b16ecfe2SAlexey Dobriyan out in checking for consistency when debugging without fear of its 45b16ecfe2SAlexey Dobriyan effect on end users. If you are on the verge of sending in a bug 46b16ecfe2SAlexey Dobriyan report, say Y and you might get a useful error message. Almost 47b16ecfe2SAlexey Dobriyan everyone should say N. 48b16ecfe2SAlexey Dobriyan 49b16ecfe2SAlexey Dobriyanconfig REISERFS_PROC_INFO 50b16ecfe2SAlexey Dobriyan bool "Stats in /proc/fs/reiserfs" 51b16ecfe2SAlexey Dobriyan depends on REISERFS_FS && PROC_FS 52b16ecfe2SAlexey Dobriyan help 53b16ecfe2SAlexey Dobriyan Create under /proc/fs/reiserfs a hierarchy of files, displaying 54b16ecfe2SAlexey Dobriyan various ReiserFS statistics and internal data at the expense of 55b16ecfe2SAlexey Dobriyan making your kernel or module slightly larger (+8 KB). This also 56b16ecfe2SAlexey Dobriyan increases the amount of kernel memory required for each mount. 57b16ecfe2SAlexey Dobriyan Almost everyone but ReiserFS developers and people fine-tuning 58b16ecfe2SAlexey Dobriyan reiserfs or tracing problems should say N. 59b16ecfe2SAlexey Dobriyan 60b16ecfe2SAlexey Dobriyanconfig REISERFS_FS_XATTR 61b16ecfe2SAlexey Dobriyan bool "ReiserFS extended attributes" 62b16ecfe2SAlexey Dobriyan depends on REISERFS_FS 63b16ecfe2SAlexey Dobriyan help 64b16ecfe2SAlexey Dobriyan Extended attributes are name:value pairs associated with inodes by 6591581e4cSAdam Borowski the kernel or by users (see the attr(5) manual page for details). 66b16ecfe2SAlexey Dobriyan 67b16ecfe2SAlexey Dobriyan If unsure, say N. 68b16ecfe2SAlexey Dobriyan 69b16ecfe2SAlexey Dobriyanconfig REISERFS_FS_POSIX_ACL 70b16ecfe2SAlexey Dobriyan bool "ReiserFS POSIX Access Control Lists" 71b16ecfe2SAlexey Dobriyan depends on REISERFS_FS_XATTR 72b16ecfe2SAlexey Dobriyan select FS_POSIX_ACL 73b16ecfe2SAlexey Dobriyan help 74b16ecfe2SAlexey Dobriyan Posix Access Control Lists (ACLs) support permissions for users and 75b16ecfe2SAlexey Dobriyan groups beyond the owner/group/world scheme. 76b16ecfe2SAlexey Dobriyan 77b16ecfe2SAlexey Dobriyan If you don't know what Access Control Lists are, say N 78b16ecfe2SAlexey Dobriyan 79b16ecfe2SAlexey Dobriyanconfig REISERFS_FS_SECURITY 80b16ecfe2SAlexey Dobriyan bool "ReiserFS Security Labels" 81b16ecfe2SAlexey Dobriyan depends on REISERFS_FS_XATTR 82b16ecfe2SAlexey Dobriyan help 83b16ecfe2SAlexey Dobriyan Security labels support alternative access control models 84b16ecfe2SAlexey Dobriyan implemented by security modules like SELinux. This option 85b16ecfe2SAlexey Dobriyan enables an extended attribute handler for file security 86b16ecfe2SAlexey Dobriyan labels in the ReiserFS filesystem. 87b16ecfe2SAlexey Dobriyan 88b16ecfe2SAlexey Dobriyan If you are not using a security module that requires using 89b16ecfe2SAlexey Dobriyan extended attributes for file security labels, say N. 90