raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-07 02:19:54 +00:00
Code Issues Projects Releases Wiki Activity

lib/rbtree: add random seed

Browse Source 
Current test use pseudo rand function with fixed seed, which means the
test data is the same pattern each time.

Add random seed parameter to randomize the test.

Link: https://lkml.kernel.org/r/20250310074938.26756-4-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michel Lespinasse <michel@lespinasse.org>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Wei Yang
2025-03-10 07:49:34 +00:00
committed by Andrew Morton
parent 3e1d58cd5d
commit 16b1936ae6
6 changed files with 15 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/rbtree_test.c
View File

@@ -14,6 +14,7 @@
__param(int, nnodes, 100, "Number of nodes in the rb-tree");
__param(int, perf_loops, 1000, "Number of iterations modifying the rb-tree");
__param(int, check_loops, 100, "Number of iterations modifying and verifying the rb-tree");
__param(ullong, seed, 3141592653589793238ULL, "Random seed");
struct test_node {
u32 key;
@@ -402,7 +403,7 @@ static int __init rbtree_test_init(void)
if (!nodes)
return -ENOMEM;
prandom_seed_state(&rnd, 3141592653589793238ULL);
prandom_seed_state(&rnd, seed);
basic_check();
augmented_check();