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maple_tree: make test code work without debug enabled

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The test code is less useful without debug, but can still do general
validations.  Define mt_dump(), mas_dump() and mas_wr_dump() as a noop if
debug is not enabled and document it in the test module information that
more information can be obtained with another kernel config option.

MT_BUG_ON() will report a failures without tree dumps, and the output will
be less useful.

Link: https://lkml.kernel.org/r/20230518145544.1722059-17-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2023-05-18 10:55:25 -04:00 committed by Andrew Morton
parent acd4de60dd
commit a5199577b1
3 changed files with 31 additions and 7 deletions
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10
lib/Kconfig.debug
View File

@ -2302,9 +2302,13 @@ config TEST_XARRAY
tristate "Test the XArray code at runtime"
config TEST_MAPLE_TREE
depends on DEBUG_KERNEL
select DEBUG_MAPLE_TREE
tristate "Test the Maple Tree code at runtime"
tristate "Test the Maple Tree code at runtime or module load"
help
Enable this option to test the maple tree code functions at boot, or
when the module is loaded. Enable "Debug Maple Trees" will enable
more verbose output on failures.
If unsure, say N.
config TEST_RHASHTABLE
tristate "Perform selftest on resizable hash table"

27
lib/test_maple_tree.c
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@ -11,12 +11,33 @@
#include <linux/module.h>
#define MTREE_ALLOC_MAX 0x2000000000000Ul
#ifndef CONFIG_DEBUG_MAPLE_TREE
#define CONFIG_DEBUG_MAPLE_TREE
#endif
#define CONFIG_MAPLE_SEARCH
#define MAPLE_32BIT (MAPLE_NODE_SLOTS > 31)
#ifndef CONFIG_DEBUG_MAPLE_TREE
#define mt_dump(mt, fmt) do {} while (0)
#define mt_validate(mt) do {} while (0)
#define mt_cache_shrink() do {} while (0)
#define mas_dump(mas) do {} while (0)
#define mas_wr_dump(mas) do {} while (0)
atomic_t maple_tree_tests_run;
atomic_t maple_tree_tests_passed;
#undef MT_BUG_ON
#define MT_BUG_ON(__tree, __x) do { \
atomic_inc(&maple_tree_tests_run); \
if (__x) { \
pr_info("BUG at %s:%d (%u)\n", \
__func__, __LINE__, __x); \
pr_info("Pass: %u Run:%u\n", \
atomic_read(&maple_tree_tests_passed), \
atomic_read(&maple_tree_tests_run)); \
} else { \
atomic_inc(&maple_tree_tests_passed); \
} \
} while (0)
#endif
/* #define BENCH_SLOT_STORE */
/* #define BENCH_NODE_STORE */
/* #define BENCH_AWALK */

1
tools/testing/radix-tree/maple.c
View File

@ -22,7 +22,6 @@
#define dump_stack() assert(0)
#include "../../../lib/maple_tree.c"
#undef CONFIG_DEBUG_MAPLE_TREE
#include "../../../lib/test_maple_tree.c"
#define RCU_RANGE_COUNT 1000