write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/fs/f2fs/hash.c
..
..
@@ -12,7 +12,6 @@
12
12
 #include <linux/types.h>
13
13
 #include <linux/fs.h>
14
14
 #include <linux/f2fs_fs.h>
15
-#include <linux/cryptohash.h>
16
15
 #include <linux/pagemap.h>
17
16
 #include <linux/unicode.h>
18
17
 
..
..
@@ -92,7 +91,7 @@
92
91
 /*
93
92
  * Compute @fname->hash.  For all directories, @fname->disk_name must be set.
94
93
  * For casefolded directories, @fname->usr_fname must be set, and also
95
- * @fname->cf_name if the filename is valid Unicode.
94
+ * @fname->cf_name if the filename is valid Unicode and is not "." or "..".
96
95
  */
97
96
 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname)
98
97
 {
..
..
@@ -111,10 +110,11 @@
111
110
 		/*
112
111
 		 * If the casefolded name is provided, hash it instead of the
113
112
 		 * on-disk name.  If the casefolded name is *not* provided, that
114
-		 * should only be because the name wasn't valid Unicode, so fall
115
-		 * back to treating the name as an opaque byte sequence.  Note
116
-		 * that to handle encrypted directories, the fallback must use
117
-		 * usr_fname (plaintext) rather than disk_name (ciphertext).
113
+		 * should only be because the name wasn't valid Unicode or was
114
+		 * "." or "..", so fall back to treating the name as an opaque
115
+		 * byte sequence.  Note that to handle encrypted directories,
116
+		 * the fallback must use usr_fname (plaintext) rather than
117
+		 * disk_name (ciphertext).
118
118
 		 */
119
119
 		WARN_ON_ONCE(!fname->usr_fname->name);
120
120
 		if (fname->cf_name.name) {