]> git.ipfire.org Git - thirdparty/kmod.git/blob - TODO
rmmod: Deprecate --wait option
[thirdparty/kmod.git] / TODO
1 Features:
2 =========
3
4 * testsuite:
5 - when fake delete_module() succeeds, remove its entry from /sys/module
6
7 * review API, maybe unify all of these getters:
8 - kmod_module_version_get_symbol()
9 - kmod_module_version_get_crc()
10 - kmod_module_symbol_get_symbol()
11 - kmod_module_symbol_get_crc()
12 - kmod_module_dependency_symbol_get_symbol()
13 - kmod_module_dependency_symbol_get_crc()
14 - kmod_module_versions_free_list()
15 - kmod_module_symbols_free_list()
16 - kmod_module_dependency_symbols_free_list(
17
18 Main reason for this is that they need to open and read the module to get
19 this information. If module is compressed, that means uncompressing +
20 allocating necessary space + deallocating for each of them. depmod uses most
21 of these functions and in the end it uncompresses the module ~6x times more
22 than needed, which makes depmod very slow if compared to module-init-tools.
23
24 We might want to either cache the elf file within kmod_module or create
25 another struct that the user ref()/unref().
26
27 * Stop using system() inside the library and use fork + exec instead
28
29 * config: configs that do not need to be matched by fnmatch() could be using a
30 vector instead of a list. This way we could search in it by calling
31 bsearch().
32
33 * index: drop the "open(), seek(), read()" implementation and use another one
34 with mmap(). When lookup() is called and the file is not mmaped, mmap it.
35
36 * Implement actions in kmod tool like 'insert', 'remove', 'info', etc
37
38 * Finish removal of "rmmod -w" when it's gone from kernel.
39
40 * Deprecate not using KMOD_REMOVE_NOWAIT on libkmod.
41
42 Things to be added/removed in kernel (check what is really needed):
43 ===================================================================
44
45 * list of currently loaded modules
46 - readdir() in /sys/modules: dir without a 'initstate' file means the
47 module is builtin.
48
49 * module's size should be available under /sys
50 - DONE in 3.3: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=cca3e707301862ca9b9327e6a732463982f8cd1b
51
52 * kill /proc/modules ?
53 - Unlikely, given other tools might depend on it
54
55 Things that are different from module-init-tools on purpose (!TODO)
56 ===================================================================
57
58 modprobe
59 --------
60
61 * 'modprobe -l' was marked as deprecated and does not exist anymore
62
63 * 'modprobe -t' is gone, together with 'modprobe -l'
64
65 * there's and additional '--remove-dependencies' flags to modprobe so we
66 can remove modules depending on that one
67
68 * modprobe doesn't parse configuration files with names not ending in
69 '.alias' or '.conf'. modprobe used to warn about these files.
70
71 * modprobe doesn't parse 'config' and 'include' commands in configuration
72 files.
73
74 * modprobe from m-i-t does not honour softdeps for install commands. E.g.:
75 config:
76
77 install bli "echo bli"
78 install bla "echo bla"
79 softdep bla pre: bli
80
81 With m-i-t, the output of 'modprobe --show-depends bla' will be:
82 install "echo bla"
83
84 While with kmod:
85 install "echo bli"
86 install "echo bla"
87
88 * kmod doesn't dump the configuration as is in the config files. Instead it
89 dumps the configuration as it was parsed. Therefore, comments and file names
90 are not dumped, but on the good side we know what the exact configuration
91 kmod is using. We did this because if we only want to know the entire content
92 of configuration files, it's enough to use find(1) in modprobe.d directories
93
94 depmod
95 ------
96
97 * there's no 'depmod -m' option: legacy modules.*map files are gone
98
99 lsmod
100 -----
101
102 * information is parsed from /sys instead of /proc/modules