linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2021-04-30	vm/test_vmalloc.sh: adapt for updated driver interface	Uladzislau Rezki (Sony)	1	-10/+11
	A 'single_cpu_test' parameter is odd and it does not exist anymore. Instead there was introduced a 'nr_threads' one. If it is not set it behaves as the former parameter. That is why update a "stress mode" according to this change specifying number of workers which are equal to number of CPUs. Also update an output of help message based on a new interface. Link: https://lkml.kernel.org/r/20210402202237.20334-3-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Hillf Danton <hdanton@sina.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-11	tools: mark 'test_vmalloc.sh' executable	Linus Torvalds	1	-0/+0
	Several of these scripts have come in as old-fashioned patches, and in the process lost the executable bit. In most cases it doesn't matter, since the test infrastructure will explicitly execute them using the proper shell interpreter, but at least in the case of the new vmalloc test, the lack of execurable bit caused the test to fail with ./run_vmtests: line 217: ./test_vmalloc.sh: Permission denied because of the lacking exectuable permissions bit. This patch fixes that up. NOTE! A simple script to look for non-executable scripts in the kernel, something like git ls-files --stage -- '*.sh' \| grep 100644 \| cut -f2 \| xargs grep -l '#!' will show that there's a lot of other files that _look_ like executable shell scripts, but don't have the executable bit set. I considered just scripting them all to be executable, but since it looks like the common pattern is to not really require it, I'm just doing the minimal fix as pointed out by the kernel test robot. Fixes: a05ef00c9790 ("selftests/vm: add script helper for CONFIG_TEST_VMALLOC_MODULE") Reported-by: kernel test robot <rong.a.chen@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Uladzislau Rezki <urezki@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-05	selftests/vm: add script helper for CONFIG_TEST_VMALLOC_MODULE	Uladzislau Rezki (Sony)	1	-0/+176
	Add the test script for the kernel test driver to analyse vmalloc allocator for benchmarking and stressing purposes. It is just a kernel module loader. You can specify and pass different parameters in order to investigate allocations behaviour. See "usage" output for more details. Also add basic vmalloc smoke test to the "run_vmtests" suite. Link: http://lkml.kernel.org/r/20190103142108.20744-4-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Reviewed-by: Shuah Khan <shuah@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>