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mm/slub: Replace sort_r() with sort() for debugfs stack trace sorting

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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>
This commit is contained in:
Kuan-Wei Chiu 2025-08-26 14:23:15 +08:00 committed by Vlastimil Babka
parent e1c4350327
commit ba7a896427
1 changed files with 3 additions and 3 deletions
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mm/slub.c
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@ -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;