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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 126 |
1 files changed, 126 insertions, 0 deletions
@@ -1,3 +1,129 @@ +kmod 30 +======= + +- Improvements + - Stop adding duplicate information on modules.builtin.alias.bin, just use + the modules.builtin.bin index + + - Speedup depmod, particularly under qemu with emulated arch, by + avoiding a lot of open/read/close of modules.alias.bin. On an + emulated ARM rootfs, depmod with only 2 modules was taking ~32s + vs ~0.07s now. + + - Add kmod_module_new_from_name_lookup() which allows doing a lookup by + module name, without considering the aliases. Other than that search + order is similar to kmod_module_new_from_lookup(). + + - modinfo learned the --modname option to explicitely show information + about the module, even if there is an alias with the same name. This + allows showing information about e.g. kernel/lib/crc32.ko, even if + kernel also exports a crc32 alias in modules.alias: + + alias crc32 crc32_pclmul + alias crc32 crc32_generic + + Same behavior will be used to other modules and to aliases provided + by user/distro. + + - depmod.conf learned a new "excludedir" directive so distro/user can + configure more directories to be excluded from its search, besides + the hardcoded values "build" and "source". + + - Better group modprobe options on help output under "Management, Query and General". + + - modprobe learned a --wait <MSEC> option to be used together with -r + when removing a module. This allows modprobe to keep trying the + removal if it fails because the module is still in use. An exponential backoff + time is used for further retries. + + The wait behavior provided by the kernel when not passing O_NONBLOCK + to delete_module() was removed in v3.13 due to not be used and the + consequences of having to support it in the kernel. However there may + be some users, particularly on testsuites for individual susbsystems, that + would want that. So provide a userspace implementation inside modprobe for + such users. "rmmod" doesn't have a --wait as it remains a bare minimal over + the API provided by the kernel. In future the --wait behavior can be added + to libkmod for testsuites not exec'ing modprobe for module removal. + + - kmod_module_remove_module() learned a new flag to silence output when + caller wants to handle them - this is particularly important for the + --wait flag to modprobe, as it's not desired to keep seeing error messages + while waiting for the module to be unused. + + - Add SM3 hash algo support to modinfo output, as already available in the kernel. + +- Bug Fixes + - Fix modinfo output when showing information for a .ko module when running + on a kernel that has that module as builtin. + + - Fix kmod_module_new_from_lookup() returning > 0 rather than 0 + when it matches an alias. + + - Fix modinfo segfault when module doesn't exist. + + - Add missing function in the html documentation: kmod_get_dirname(). + + - Fix modprobe incorrectly handling number of arguments when prepending values from + MODPROBE_OPTIONS environment variable. + + - Fix modprobe -r --remove-dependencies and since "dependencies" was a + misnomer, add the preferred argument option: "--remove-holders". This + is the same name used by the kernel. It allows users to also remove + other modules holding the one that is being removed. + + - Fix off-by-one in max module name length in depmod. + +- Infra/internal + - Start some changes in the out-of-tree test modules in kmod so they are useful + for being really inserted in the kernel rather than relying on kmod's mock + interface. This helps manual testing and may be used to exercise to test + changes in the kernel. + +kmod 29 +======= + +- Improvements + - Add support to use /usr/local as a place for configuration files. This makes it easier + to install locally without overriding distro files. + +- Bug fixes + - Fix `modinfo -F` when module is builtin: when we asked by a specific field from modinfo, + it was not working correctly if the module was builtin + + - Documentation fixes on precedence order of /etc and /run: the correct order is + /etc/modprobe.d, /run/modprobe.d, /lib/modprobe.d + + - Fix the priority order that we use for searching configuration files. The + correct one is /etc, /run, /usr/local/lib, /lib, for both modprobe.d + and depmo.d + + - Fix kernel command line parsing when there are quotes present. Grub + mangles the command line and changes it from 'module.option="val with + spaces"' to '"module.option=val with spaces"'. Although this is weird + behavior and grub could have been fixed, the kernel understands it + correctly for builtin modules. So change libkmod to also parse it + correctly. This also brings another hidden behavior from the kernel: + newline in the kernel command line is also allowed and can be used to + separate options. + + - Fix a memory leak, overflow and double free on error path + + - Fix documentation for return value from kmod_module_get_info(): we + return the number of entries we added to the list + + - Fix output of modules.builtin.alias.bin index: we were writing an empty file due to + the misuse of kmod_module_get_info() + +- Infra/internal + - Retire integration with semaphoreci + + - Declare the github mirror also as an official upstream source: now besides accepting + patches via mailing list, PRs on github are also acceptable + + - Misc improvements to testsuite, so we can use it reliably regardless + of the configuration used: now tests will skip if we don't have the + build dependencies) + kmod 28 ======= |