The patch titled
Subject: maple_tree: make test code work without debug enabled
has been added to the -mm mm-unstable branch. Its filename is
maple_tree-make-test-code-work-without-debug-enabled.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/maple_tree-make-test-code-work-without-debug-enabled.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: maple_tree: make test code work without debug enabled
Date: Fri, 5 May 2023 13:41:44 -0400
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/20230505174204.2665599-17-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: David Binderman <dcb314@xxxxxxxxxxx>
Cc: Peng Zhang <zhangpeng.00@xxxxxxxxxxxxx>
Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 10 +++++++---
lib/test_maple_tree.c | 27 ++++++++++++++++++++++++---
tools/testing/radix-tree/maple.c | 1 -
3 files changed, 31 insertions(+), 7 deletions(-)
--- a/lib/Kconfig.debug~maple_tree-make-test-code-work-without-debug-enabled
+++ a/lib/Kconfig.debug
@@ -2293,9 +2293,13 @@ 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"
--- a/lib/test_maple_tree.c~maple_tree-make-test-code-work-without-debug-enabled
+++ a/lib/test_maple_tree.c
@@ -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 */
--- a/tools/testing/radix-tree/maple.c~maple_tree-make-test-code-work-without-debug-enabled
+++ a/tools/testing/radix-tree/maple.c
@@ -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
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
maple_tree-fix-static-analyser-cppcheck-issue.patch
maple_tree-avoid-unnecessary-ascending.patch
maple_tree-clean-up-mas_dfs_postorder.patch
maple_tree-add-debug-bug_on-and-warn_on-variants.patch
maple_tree-use-mas_bug_on-when-setting-a-leaf-node-as-a-parent.patch
maple_tree-use-mas_bug_on-in-mas_set_height.patch
maple_tree-use-mas_bug_on-from-mas_topiary_range.patch
maple_tree-use-mas_wr_bug_on-in-mas_store_prealloc.patch
maple_tree-use-mas_bug_on-prior-to-calling-mas_meta_gap.patch
maple_tree-return-error-on-mte_pivots-out-of-range.patch
maple_tree-make-test-code-work-without-debug-enabled.patch
mm-update-validate_mm-to-use-vma-iterator.patch
mm-update-vma_iter_store-to-use-mas_warn_on.patch
maple_tree-add-__init-and-__exit-to-test-module.patch
maple_tree-remove-unnecessary-check-from-mas_destroy.patch
maple_tree-mas_start-reset-depth-on-dead-node.patch
mm-mmap-change-do_vmi_align_munmap-for-maple-tree-iterator-changes.patch
maple_tree-try-harder-to-keep-active-node-after-mas_next.patch
maple_tree-try-harder-to-keep-active-node-with-mas_prev.patch
maple_tree-revise-limit-checks-in-mas_empty_area_rev.patch
maple_tree-fix-testing-mas_empty_area.patch
maple_tree-introduce-mas_next_slot-interface.patch
maple_tree-add-mas_next_range-and-mas_find_range-interfaces.patch
maple_tree-relocate-mas_rewalk-and-mas_rewalk_if_dead.patch
maple_tree-introduce-mas_prev_slot-interface.patch
maple_tree-add-mas_prev_range-and-mas_find_range_rev-interface.patch
maple_tree-clear-up-index-and-last-setting-in-single-entry-tree.patch
maple_tree-update-testing-code-for-mas_nextprevwalk.patch
mm-add-vma_iter_nextprev_range-to-vma-iterator.patch
mm-avoid-rewalk-in-mmap_region.patch
maple_tree-add-gap-to-check_alloc_rev_range-testcase.patch
