| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2019-12-04 | lib/test_meminit.c: add bulk alloc/free tests | Laura Abbott | 1 | -1/+19 | |
| kmem_cache_alloc_bulk/kmem_cache_free_bulk are used to make multiple allocations of the same size to avoid the overhead of multiple kmalloc/kfree calls. Extend the kmem_cache tests to make some calls to these APIs. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Laura Abbott <[email protected]> Reviewed-by: Kees Cook <[email protected]> Tested-by: Alexander Potapenko <[email protected]> Cc: Laura Abbott <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Kostya Serebryany <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Sandeep Patil <[email protected]> Cc: Jann Horn <[email protected]> Cc: Marco Elver <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2019-10-14 | lib/test_meminit: add a kmem_cache_alloc_bulk() test | Alexander Potapenko | 1 | -0/+27 | |
| Make sure allocations from kmem_cache_alloc_bulk() and kmem_cache_free_bulk() are properly initialized. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Alexander Potapenko <[email protected]> Cc: Kees Cook <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Laura Abbott <[email protected]> Cc: Thibaut Sautereau <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2019-08-03 | lib/test_meminit.c: use GFP_ATOMIC in RCU critical section | Alexander Potapenko | 1 | -1/+1 | |
| kmalloc() shouldn't sleep while in RCU critical section, therefore use GFP_ATOMIC instead of GFP_KERNEL. The bug was spotted by the 0day kernel testing robot. Link: http://lkml.kernel.org/r/[email protected] Fixes: 7e659650cbda ("lib: introduce test_meminit module") Signed-off-by: Alexander Potapenko <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reported-by: kernel test robot <[email protected]> Cc: Kees Cook <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2019-07-16 | lib/test_meminit.c: minor test fixes | Alexander Potapenko | 1 | -6/+6 | |
| Fix the following issues in test_meminit.c: - |size| in fill_with_garbage_skip() should be signed so that it doesn't overflow if it's not aligned on sizeof(*p); - fill_with_garbage_skip() should actually skip |skip| bytes; - do_kmem_cache_size() should deallocate memory in the RCU case. Link: http://lkml.kernel.org/r/[email protected] Fixes: 7e659650cbda ("lib: introduce test_meminit module") Fixes: 94e8988d91c7 ("lib/test_meminit.c: fix -Wmaybe-uninitialized false positive") Signed-off-by: Alexander Potapenko <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Kees Cook <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2019-07-16 | lib/test_meminit.c: fix -Wmaybe-uninitialized false positive | Arnd Bergmann | 1 | -24/+26 | |
| The conditional logic is too complicated for the compiler to fully comprehend: lib/test_meminit.c: In function 'test_meminit_init': lib/test_meminit.c:236:5: error: 'buf_copy' may be used uninitialized in this function [-Werror=maybe-uninitialized] kfree(buf_copy); ^~~~~~~~~~~~~~~ lib/test_meminit.c:201:14: note: 'buf_copy' was declared here Simplify it by splitting out the non-rcu section. Link: http://lkml.kernel.org/r/[email protected] Fixes: af734ee6ec85 ("lib: introduce test_meminit module") Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Alexander Potapenko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2019-07-16 | lib: introduce test_meminit module | Alexander Potapenko | 1 | -0/+362 | |
| Add tests for heap and pagealloc initialization. These can be used to check init_on_alloc and init_on_free implementations as well as other approaches to initialization. Expected test output in the case the kernel provides heap initialization (e.g. when running with either init_on_alloc=1 or init_on_free=1): test_meminit: all 10 tests in test_pages passed test_meminit: all 40 tests in test_kvmalloc passed test_meminit: all 60 tests in test_kmemcache passed test_meminit: all 10 tests in test_rcu_persistent passed test_meminit: all 120 tests passed! Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Alexander Potapenko <[email protected]> Acked-by: Kees Cook <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Kostya Serebryany <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Sandeep Patil <[email protected]> Cc: Laura Abbott <[email protected]> Cc: Jann Horn <[email protected]> Cc: Marco Elver <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||