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authorKuan-Wei Chiu <visitorckw@gmail.com>2025-08-26 14:23:15 +0800
committerVlastimil Babka <vbabka@suse.cz>2025-09-10 22:52:33 +0200
commitba7a896427cbade13d30f3c7e18c15e8be243c18 (patch)
treec6d87e4b45a38d99f39cff2795f2ab87276a105a
parente1c4350327b39c9cad27b6c5779b3754384f26c8 (diff)
mm/slub: Replace sort_r() with sort() for debugfs stack trace sorting
The comparison function used to sort stack trace locations in debugfs never relied on the third argument. Therefore, sort_r() is unnecessary. Switch to sort() with a two-argument comparison function to keep the code simple and aligned with the intended usage. Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Harry Yoo <harry.yoo@oracle.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
-rw-r--r--mm/slub.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 264fc76455d7..9074ce914e9e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -7726,7 +7726,7 @@ static void *slab_debugfs_next(struct seq_file *seq, void *v, loff_t *ppos)
return NULL;
}
-static int cmp_loc_by_count(const void *a, const void *b, const void *data)
+static int cmp_loc_by_count(const void *a, const void *b)
{
struct location *loc1 = (struct location *)a;
struct location *loc2 = (struct location *)b;
@@ -7793,8 +7793,8 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep)
}
/* Sort locations by count */
- sort_r(t->loc, t->count, sizeof(struct location),
- cmp_loc_by_count, NULL, NULL);
+ sort(t->loc, t->count, sizeof(struct location),
+ cmp_loc_by_count, NULL);
bitmap_free(obj_map);
return 0;