The following companies contribute to Btrfs code, not counting the treewide and other subsystem changes. Infrequent contributions are not reflected in this list, please have a look to the git history for complete list.
Sorted by amount of contributions:
- SUSE
- Western Digital
- Oracle
The following contributed in the past (sorted alphabetically): Fujitsu, Fusion-IO, Intel, Linux Foundation, Red Hat, STRATO AG.
 |
 |
 |
| Version | Contributors | SLOC | Raw lines | Patches | Diffstat |
|---|---|---|---|---|---|
| 6.0 | 24 | 109726 | 156988 | 192 | +4248 -3108 |
| 6.1 | 28 | 110850 | 159284 | 224 | +7738 -5442 |
| 6.2 | 23 | 111898 | 161197 | 289 | +11693 -9780 |
| 6.3 | 19 | 111615 | 160912 | 150 | +2824 -3108 |
| 6.4 | 18 | 110224 | 159150 | 180 | +3118 -4879 |
| 6.5 | 19 | 110377 | 159415 | 230 | +3193 -2928 |
| 6.6 | 21 | 110785 | 160152 | 153 | +2648 -1909 |
| 6.7 | 18 | 109562 | 159074 | 185 | +4376 -5476 |
| 6.8 | 17 | 109963 | 160078 | 134 | +4494 -3490 |
Legend:
- Files: fs/btrfs/*.[ch], fs/btrfs/tests/*.[ch], include/uapi/linux/btrfs.h, include/uapi/linux/btrfs_tree.h, include/linux/btrfs.h, include/trace/events/btrfs.h
- Version: mainline version
- Contributors: number of people that sent patches that modified ''Files'', direct btrfs development or originating from other tree-wide changes
- SLOC: lines of code, http://dwheeler.com/sloccount/ (generated by version 2.26)
- Raw lines: counted by ''wc -l'' over ''Files''
- Patches: number of patches from ''Contributors'', merge commits excluded
- Diffstat: lines added and deleted in ''Files''
| Version | Contributors | SLOC | Raw lines | Patches | Diffstat |
|---|---|---|---|---|---|
| 5.0 | 15 | 98298 | 134159 | 144 | +3173 -2297 |
| 5.1 | 18 | 98992 | 135308 | 116 | +2208 -1059 |
| 5.2 | 22 | 99888 | 136521 | 255 | +3524 -2311 |
| 5.3 | 20 | 100254 | 137224 | 124 | +4106 -3400 |
| 5.4 | 18 | 100660 | 137889 | 166 | +10752 -10087 |
| 5.5 | 17 | 100638 | 138212 | 168 | +3055 -2729 |
| 5.6 | 18 | 101482 | 139742 | 114 | +3370 -1840 |
| 5.7 | 22 | 101661 | 140694 | 221 | +4484 -3532 |
| 5.8 | 21 | 101562 | 140930 | 158 | +3176 -2940 |
| 5.9 | 18 | 101973 | 141748 | 188 | +2218 -1400 |
"5.10", "22", "102378", "142760", "187", "+3148 -2135" "5.11", "15", "102418", "143124", "229", "+4872 -4507" "5.12", "20", "105026", "147099", "195", "+5310 -1316" "5.13", "19", "105820", "148503", "145", "+3334 -1930" "5.14", "19", "106324", "149550", "121", "+2823 -1774" "5.15", "17", "106895", "151006", "133", "+2879 -1422" "5.16", "24", "107854", "152760", "173", "+4770 -3016" "5.17", "17", "107910", "153407", "154", "+4024 -3378" "5.18", "30", "109159", "155372", "143", "+3489 -1523" "5.19", "21", "109140", "155848", "202", "+4448 -3972"
| Version | Contributors | SLOC | Raw lines | Patches | Diffstat |
|---|---|---|---|---|---|
| 4.0 | 22 | 85849 | 115716 | 97 | +1622 -937 |
| 4.1 | 25 | 87596 | 118253 | 120 | +2415 -1062 |
| 4.2 | 19 | 87935 | 118790 | 119 | +2392 -1855 |
| 4.3 | 23 | 88384 | 119576 | 74 | +1516 -730 |
| 4.4 | 26 | 89543 | 121456 | 138 | +3184 -1304 |
| 4.5 | 26 | 91708 | 124363 | 127 | +4370 -1462 |
| 4.6 | 29 | 92134 | 125045 | 100 | +1890 -1208 |
| 4.7 | 33 | 92922 | 126264 | 161 | +3721 -2502 |
| 4.8 | 22 | 93769 | 127392 | 114 | +2732 -1604 |
| 4.9 | 25 | 94237 | 128040 | 64 | +1959 -1311 |
"4.10", "24", "94303", "128156", "105", "+4874 -4758" "4.11", "24", "94365", "128340", "210", "+2084 -1900" "4.12", "21", "94931", "129230", "85", "+1803 -913" "4.13", "29", "93892", "127970", "135", "+2017 -1607" "4.14", "28", "94296", "124346", "132", "+2114 -1520" "4.15", "30", "97091", "132221", "128", "+3761 -1795" "4.16", "25", "97637", "133305", "188", "+2562 -1481" "4.17", "21", "98027", "133003", "194", "+2723 -3024" "4.18", "26", "98387", "133667", "200", "+3643 -2979" "4.19", "25", "97547", "132655", "193", "+2058 -3070" "4.20", "22", "97830", "133283", "128", "+1560 -932"
| Version | Contributors | SLOC | Raw lines | Patches | Diffstat |
|---|---|---|---|---|---|
| 3.0 | 25 | 48665 | 65192 | 126 | +7508 -5175 |
| 3.1 | 24 | 48647 | 65248 | 106 | +1762 -1586 |
| 3.2 | 30 | 51574 | 69552 | 184 | +6344 -2040 |
| 3.3 | 27 | 56216 | 75485 | 129 | +7151 -1218 |
| 3.4 | 25 | 57865 | 77671 | 118 | +4597 -2411 |
| 3.5 | 21 | 59683 | 79983 | 108 | +3570 -1258 |
| 3.6 | 25 | 65894 | 88123 | 104 | +9145 -1005 |
| 3.7 | 30 | 67348 | 90171 | 151 | +3802 -1754 |
| 3.8 | 25 | 70289 | 93916 | 161 | +5599 -1854 |
| 3.9 | 29 | 73414 | 98602 | 160 | +6430 -1242 |
"3.10", "24", "74449", "99980", "133", "+3529 -2151" "3.11", "21", "74875", "100657", "100", "+2538 -1857" "3.12", "32", "76265", "102497", "158", "+4373 -2533" "3.13", "24", "77532", "104108", "123", "+2741 -1123" "3.14", "28", "79879", "107069", "171", "+5290 -2329" "3.15", "27", "80308", "107544", "152", "+2389 -1914" "3.16", "29", "82292", "110331", "137", "+4361 -1574" "3.17", "19", "82625", "110841", "44", "+1060 -550" "3.18", "25", "83910", "112906", "149", "+3696 -1631" "3.19", "18", "85420", "115031", "82", "+2802 -677"
| Version | Contributors | SLOC | Raw lines | Patches | Diffstat |
|---|---|---|---|---|---|
| 2.6.30 | 22 | 33838 | 45377 | 70 | +4403 -2632 |
| 2.6.31 | 19 | 38825 | 51693 | 68 | +9207 -2862 |
| 2.6.32 | 15 | 40211 | 53515 | 95 | +4291 -2469 |
| 2.6.33 | 17 | 40408 | 53806 | 43 | +1332 -1041 |
| 2.6.34 | 18 | 41100 | 54715 | 54 | +1374 -465 |
| 2.6.35 | 14 | 43014 | 57082 | 50 | +5230 -2863 |
| 2.6.36 | 4 | 43016 | 57088 | 6 | +39 -33 |
| 2.6.37 | 17 | 44781 | 59491 | 83 | +3104 -701 |
| 2.6.38 | 23 | 46573 | 61980 | 90 | +3472 -983 |
| 2.6.39 | 28 | 47206 | 62859 | 102 | +2115 -1236 |