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ext4 crypto: migrate into vfs's crypto engine

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This patch removes the most parts of internal crypto codes.
And then, it modifies and adds some ext4-specific crypt codes to use the generic
facility.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jaegeuk Kim 2016-07-10 14:01:03 -04:00 • committed by Theodore Ts'o
parent ff0031d848
commit a7550b30ab
19 changed files with 303 additions and 2003 deletions
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7
fs/ext4/ialloc.c
View file

@ -767,10 +767,10 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
if ((ext4_encrypted_inode(dir) ||
DUMMY_ENCRYPTION_ENABLED(EXT4_SB(dir->i_sb))) &&
(S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) {
err = ext4_get_encryption_info(dir);
err = fscrypt_get_encryption_info(dir);
if (err)
return ERR_PTR(err);
if (ext4_encryption_info(dir) == NULL)
if (!fscrypt_has_encryption_key(dir))
return ERR_PTR(-EPERM);
if (!handle)
nblocks += EXT4_DATA_TRANS_BLOCKS(dir->i_sb);
@ -1115,7 +1115,8 @@ got:
}
if (encrypt) {
err = ext4_inherit_context(dir, inode);
/* give pointer to avoid set_context with journal ops. */
err = fscrypt_inherit_context(dir, inode, &encrypt, true);
if (err)
goto fail_free_drop;
}