mm: shrinkers: fix debugfs file permissions

The permissions for the files here are swapped as "count" is read-only and
"scan" is write-only.  While this doesn't really matter as these
permissions don't stop the files being opened for reading/writing as
appropriate, they are shown by "ls -l" and are confusing.

Link: https://lkml.kernel.org/r/20230418101906.3131303-1-john@metanate.com
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/shrinker_debug.c b/mm/shrinker_debug.c
index fdd155fd35ed89a212bdf949eb9e6ec1b45a262d..3f83b10c5031c09e8ac24b3e0605477753fc5651 100644 (file)
--- a/mm/shrinker_debug.c
+++ b/mm/shrinker_debug.c
@@ -189,9 +189,9 @@ int shrinker_debugfs_add(struct shrinker *shrinker)
        }
        shrinker->debugfs_entry = entry;
 
-       debugfs_create_file("count", 0220, entry, shrinker,
+       debugfs_create_file("count", 0440, entry, shrinker,
                            &shrinker_debugfs_count_fops);
-       debugfs_create_file("scan", 0440, entry, shrinker,
+       debugfs_create_file("scan", 0220, entry, shrinker,
                            &shrinker_debugfs_scan_fops);
        return 0;
 }