From: Eric Biggers <ebiggers@xxxxxxxxxx>
The call to fscrypt_get_encryption_info() in dx_show_leaf() is too low
in the call tree; fscrypt_get_encryption_info() should have already been
called when starting the directory operation. And indeed, it already
is. Moreover, the encryption key is guaranteed to already be available
because dx_show_leaf() is only called when adding a new directory entry.
And even if the key wasn't available, dx_show_leaf() uses
fscrypt_fname_disk_to_usr() which knows how to create a no-key name.
So for the above reasons, and because it would be desirable to stop
exporting fscrypt_get_encryption_info() directly to filesystems, remove
the call to fscrypt_get_encryption_info() from dx_show_leaf().
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
fs/ext4/namei.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 793fc7db9d28..7b31aea3e025 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -643,13 +643,7 @@ static struct stats dx_show_leaf(struct inode *dir,
name = de->name;
len = de->name_len;
- if (IS_ENCRYPTED(dir))
- res = fscrypt_get_encryption_info(dir);
- if (res) {
- printk(KERN_WARNING "Error setting up"
- " fname crypto: %d\n", res);
- }
- if (!fscrypt_has_encryption_key(dir)) {
+ if (!IS_ENCRYPTED(dir)) {
/* Directory is not encrypted */
ext4fs_dirhash(dir, de->name,
de->name_len, &h);
--
2.29.2
