Commit d7d75352 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

fscrypto: use dget_parent() in fscrypt_d_revalidate() 



This patch updates fscrypto along with the below ext4 crypto change.

Fixes: 3d43bcfe ("ext4 crypto: use dget_parent() in ext4_d_revalidate()")
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent bf162006

fs/crypto/crypto.c

+8 −3
Original line number Diff line number Diff line
@@ -345,13 +345,17 @@ EXPORT_SYMBOL(fscrypt_zeroout_range); 
 */

static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)

{

	struct inode *dir = d_inode(dentry->d_parent);

	struct fscrypt_info *ci = dir->i_crypt_info;

	struct dentry *dir;

	struct fscrypt_info *ci;

	int dir_has_key, cached_with_key;



	if (!dir->i_sb->s_cop->is_encrypted(dir))

	dir = dget_parent(dentry);

	if (!d_inode(dir)->i_sb->s_cop->is_encrypted(d_inode(dir))) {

		dput(dir);

		return 0;

	}



	ci = d_inode(dir)->i_crypt_info;

	if (ci && ci->ci_keyring_key &&

	    (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |

					  (1 << KEY_FLAG_REVOKED) |
@@ -363,6 +367,7 @@ static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags) 
	cached_with_key = dentry->d_flags & DCACHE_ENCRYPTED_WITH_KEY;

	spin_unlock(&dentry->d_lock);

	dir_has_key = (ci != NULL);

	dput(dir);



	/*

	 * If the dentry was cached without the key, and it is a