[PATCH v2 17/21] slub: don't mess with ->d_name

[Al Viro <viro@xxxxxxxxxxxxxxxxxx>]

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
 mm/slub.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index c2151c9fee22..4f006b047552 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -7513,10 +7513,7 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep)
 		return -ENOMEM;
 	}
 
-	if (strcmp(filep->f_path.dentry->d_name.name, "alloc_traces") == 0)
-		alloc = TRACK_ALLOC;
-	else
-		alloc = TRACK_FREE;
+	alloc = debugfs_get_aux_num(filep);
 
 	if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL)) {
 		bitmap_free(obj_map);
@@ -7572,11 +7569,11 @@ static void debugfs_slab_add(struct kmem_cache *s)
 
 	slab_cache_dir = debugfs_create_dir(s->name, slab_debugfs_root);
 
-	debugfs_create_file("alloc_traces", 0400,
-		slab_cache_dir, s, &slab_debugfs_fops);
+	debugfs_create_file_aux_num("alloc_traces", 0400, slab_cache_dir, s,
+					TRACK_ALLOC, &slab_debugfs_fops);
 
-	debugfs_create_file("free_traces", 0400,
-		slab_cache_dir, s, &slab_debugfs_fops);
+	debugfs_create_file_aux_num("free_traces", 0400, slab_cache_dir, s,
+					TRACK_FREE, &slab_debugfs_fops);
 }
 
 void debugfs_slab_release(struct kmem_cache *s)
-- 
2.39.5