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| author |   Uladzislau Rezki (Sony) <urezki@gmail.com> | 2025-04-17 18:12:14 +0200 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-05-11 17:48:34 -0700 |
| commit | 2d76e79315e403aab595d4c8830b7a46c19f0f3b (patch) | |
| tree | 3ea422dcc34cb2e3e85c645e5b9ed3ce9b157feb /lib | |
| parent | lib/test_vmalloc.c: replace RWSEM to SRCU for setup (diff) | |
| download | linux-rng-2d76e79315e403aab595d4c8830b7a46c19f0f3b.tar.xz linux-rng-2d76e79315e403aab595d4c8830b7a46c19f0f3b.zip | |
lib/test_vmalloc.c: allow built-in execution
Remove the dependency on module loading ("m") for the vmalloc test suite,
enabling it to be built directly into the kernel, so both ("=m") and
("=y") are supported.
Motivation:
- Faster debugging/testing of vmalloc code;
- It allows to configure the test via kernel-boot parameters.
Configuration example:
test_vmalloc.nr_threads=64
test_vmalloc.run_test_mask=7
test_vmalloc.sequential_test_order=1
Link: https://lkml.kernel.org/r/20250417161216.88318-2-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Adrian Huang <ahuang12@lenovo.com>
Tested-by: Adrian Huang <ahuang12@lenovo.com>
Cc: Christop Hellwig <hch@infradead.org>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 3 | ||||
| -rw-r--r-- | lib/test_vmalloc.c | 5 |
2 files changed, 4 insertions, 4 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index f9051ab610d5..166b9d830a85 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2574,8 +2574,7 @@ config TEST_BITOPS config TEST_VMALLOC tristate "Test module for stress/performance analysis of vmalloc allocator" default n - depends on MMU - depends on m + depends on MMU help This builds the "test_vmalloc" module that should be used for stress and performance analysis. So, any new change for vmalloc diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c index 399751022eea..1b0b59549aaf 100644 --- a/lib/test_vmalloc.c +++ b/lib/test_vmalloc.c @@ -591,10 +591,11 @@ static void do_concurrent_test(void) kvfree(tdriver); } -static int vmalloc_test_init(void) +static int __init vmalloc_test_init(void) { do_concurrent_test(); - return -EAGAIN; /* Fail will directly unload the module */ + /* Fail will directly unload the module */ + return IS_BUILTIN(CONFIG_TEST_VMALLOC) ? 0:-EAGAIN; } module_init(vmalloc_test_init) |