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ubifs: switch to fscrypt_prepare_rename()

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Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Eric Biggers 2017-11-29 12:43:15 -08:00 committed by Richard Weinberger
parent 5653878c8c
commit 0c1ad5242d
1 changed files with 7 additions and 13 deletions
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20
fs/ubifs/dir.c
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@ -1353,12 +1353,6 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
if (unlink)
ubifs_assert(inode_is_locked(new_inode));
if (old_dir != new_dir) {
if (ubifs_crypt_is_encrypted(new_dir) &&
!fscrypt_has_permitted_context(new_dir, old_inode))
return -EPERM;
}
if (unlink && is_dir) {
err = ubifs_check_dir_empty(new_inode);
if (err)
@ -1573,13 +1567,6 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
ubifs_assert(fst_inode && snd_inode);
if ((ubifs_crypt_is_encrypted(old_dir) ||
ubifs_crypt_is_encrypted(new_dir)) &&
(old_dir != new_dir) &&
(!fscrypt_has_permitted_context(new_dir, fst_inode) ||
!fscrypt_has_permitted_context(old_dir, snd_inode)))
return -EPERM;
err = fscrypt_setup_filename(old_dir, &old_dentry->d_name, 0, &fst_nm);
if (err)
return err;
@ -1624,12 +1611,19 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
int err;
if (flags & ~(RENAME_NOREPLACE | RENAME_WHITEOUT | RENAME_EXCHANGE))
return -EINVAL;
ubifs_assert(inode_is_locked(old_dir));
ubifs_assert(inode_is_locked(new_dir));
err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
flags);
if (err)
return err;
if (flags & RENAME_EXCHANGE)
return ubifs_xrename(old_dir, old_dentry, new_dir, new_dentry);