mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-27 11:06:41 -05:00
Code Issues Packages Projects Releases Wiki Activity

maple_tree: testing fix for spanning store on 32b

Browse Source 
32 bit nodes have a larger branching factor.  This affects the required
value to cause a height change.  Update the spanning store height test to
work for both 64 and 32 bit nodes.

Link: https://lkml.kernel.org/r/20250828003023.418966-3-Liam.Howlett@oracle.com
Fixes: f9d3a963fe ("maple_tree: use height and depth consistently")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett
2025-08-27 20:30:23 -04:00
committed by Andrew Morton
parent 82b5fe3059
commit 103e90626d
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
tools/testing/radix-tree/maple.c
View File

@@ -36327,13 +36327,18 @@ extern void test_kmem_cache_bulk(void);
static inline void check_spanning_store_height(struct maple_tree *mt)
{
int index = 0;
int last = 140;
MA_STATE(mas, mt, 0, 0);
mas_lock(&mas);
while (mt_height(mt) != 3) {
mas_store_gfp(&mas, xa_mk_value(index), GFP_KERNEL);
mas_set(&mas, ++index);
}
mas_set_range(&mas, 90, 140);
if (MAPLE_32BIT)
last = 155; /* 32 bit higher branching factor. */
mas_set_range(&mas, 90, last);
mas_store_gfp(&mas, xa_mk_value(index), GFP_KERNEL);
MT_BUG_ON(mt, mas_mt_height(&mas) != 2);
mas_unlock(&mas);