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ext4: switch to fscrypt_prepare_lookup()

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Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Eric Biggers 2017-10-18 20:21:58 -04:00 committed by Theodore Ts'o
parent 07543d164b
commit 8990427501
1 changed files with 6 additions and 16 deletions
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22
fs/ext4/namei.c
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@ -1538,24 +1538,14 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
struct inode *inode;
struct ext4_dir_entry_2 *de;
struct buffer_head *bh;
int err;
if (ext4_encrypted_inode(dir)) {
int res = fscrypt_get_encryption_info(dir);
err = fscrypt_prepare_lookup(dir, dentry, flags);
if (err)
return ERR_PTR(err);
/*
* DCACHE_ENCRYPTED_WITH_KEY is set if the dentry is
* created while the directory was encrypted and we
* have access to the key.
*/
if (fscrypt_has_encryption_key(dir))
fscrypt_set_encrypted_dentry(dentry);
fscrypt_set_d_op(dentry);
if (res && res != -ENOKEY)
return ERR_PTR(res);
}
if (dentry->d_name.len > EXT4_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
if (dentry->d_name.len > EXT4_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
if (IS_ERR(bh))