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* Linux: Remove ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST autotools checkRichard Yao2022-10-131-33/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | On older kernels, the definition for `module_param_call()` typecasts function pointers to `(void *)`, which triggers -Werror, causing the check to return false when it should return true. Fixing this breaks the build process on some older kernels because they define a `__check_old_set_param()` function in their headers that checks for a non-constified `->set()`. We workaround that through the c preprocessor by defining `__check_old_set_param(set)` to `(set)`, which prevents the build failures. However, it is now apparent that all kernels that we support have adopted the GRSecurity change, so there is no need to have an explicit autotools check for it anymore. We therefore remove the autotools check, while adding the workaround to our headers for the build time non-constified `->set()` check done by older kernel headers. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Alexander Motin <[email protected]> Signed-off-by: Richard Yao <[email protected]> Closes #13984 Closes #14004
* Perform KABI checks in parallelBrian Behlendorf2019-10-011-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #8547 Closes #9132 Closes #9341
* Linux compat: Grsecurity kernelGvozden Neskovic2016-08-221-0/+30
API Change: Module parameter set/get methods take const parameter in Grsecurity kernel v4.7.1 Signed-off-by: Gvozden Neskovic <[email protected]> Signed-off-by: Jason Zaman <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #4997 Closes #5001