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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-04-11 15:10:11 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-04-12 10:24:04 -0700 |
| commit | d7d75352890447b55c13a81df316a6894ff32ecf (patch) | |
| tree | 8204d591641df8bf7c63ddf464fb9f3e2ab40944 | |
| parent | bf16200689118d19de1b8d2a3c314fc21f5dc7bb (diff) | |
| download | linux-stable-d7d75352890447b55c13a81df316a6894ff32ecf.tar.gz linux-stable-d7d75352890447b55c13a81df316a6894ff32ecf.tar.bz2 linux-stable-d7d75352890447b55c13a81df316a6894ff32ecf.zip | |
fscrypto: use dget_parent() in fscrypt_d_revalidate()
This patch updates fscrypto along with the below ext4 crypto change.
Fixes: 3d43bcfef5f0 ("ext4 crypto: use dget_parent() in ext4_d_revalidate()")
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/crypto/crypto.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index 7f5804537d30..58ae0ba91ca2 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -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 |