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ext4: use IS_ENCRYPTED() to check encryption status

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This commit removes the ext4 specific ext4_encrypted_inode() and makes
use of the generic IS_ENCRYPTED() macro to check for the encryption
status of an inode.

Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Chandan Rajendra 2018-12-12 15:20:10 +05:30 committed by Theodore Ts'o
parent 1058ef0dcb
commit 592ddec757
10 changed files with 22 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
fs/ext4/dir.c
View File

@ -111,7 +111,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
int dir_has_error = 0;
struct fscrypt_str fstr = FSTR_INIT(NULL, 0);
if (ext4_encrypted_inode(inode)) {
if (IS_ENCRYPTED(inode)) {
err = fscrypt_get_encryption_info(inode);
if (err && err != -ENOKEY)
return err;
@ -138,7 +138,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
return err;
}
if (ext4_encrypted_inode(inode)) {
if (IS_ENCRYPTED(inode)) {
err = fscrypt_fname_alloc_buffer(inode, EXT4_NAME_LEN, &fstr);
if (err < 0)
return err;
@ -245,7 +245,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
offset += ext4_rec_len_from_disk(de->rec_len,
sb->s_blocksize);
if (le32_to_cpu(de->inode)) {
if (!ext4_encrypted_inode(inode)) {
if (!IS_ENCRYPTED(inode)) {
if (!dir_emit(ctx, de->name,
de->name_len,
le32_to_cpu(de->inode),
@ -613,7 +613,7 @@ finished:
static int ext4_dir_open(struct inode * inode, struct file * filp)
{
if (ext4_encrypted_inode(inode))
if (IS_ENCRYPTED(inode))
return fscrypt_get_encryption_info(inode) ? -EACCES : 0;
return 0;
}

5
fs/ext4/ext4.h
View File

@ -2279,11 +2279,6 @@ extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
struct ext4_group_desc *gdp);
ext4_fsblk_t ext4_inode_to_goal_block(struct inode *);
static inline bool ext4_encrypted_inode(struct inode *inode)
{
return ext4_test_inode_flag(inode, EXT4_INODE_ENCRYPT);
}
#ifdef CONFIG_EXT4_FS_ENCRYPTION
static inline int ext4_fname_setup_filename(struct inode *dir,
const struct qstr *iname,

2
fs/ext4/ext4_jbd2.h
View File

@ -411,7 +411,7 @@ static inline int ext4_inode_journal_mode(struct inode *inode)
(ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
!test_opt(inode->i_sb, DELALLOC))) {
/* We do not support data journalling for encrypted data */
if (S_ISREG(inode->i_mode) && ext4_encrypted_inode(inode))
if (S_ISREG(inode->i_mode) && IS_ENCRYPTED(inode))
return EXT4_INODE_ORDERED_DATA_MODE; /* ordered */
return EXT4_INODE_JOURNAL_DATA_MODE; /* journal data */
}

4
fs/ext4/extents.c
View File

@ -3631,7 +3631,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
max_zeroout = sbi->s_extent_max_zeroout_kb >>
(inode->i_sb->s_blocksize_bits - 10);
if (ext4_encrypted_inode(inode))
if (IS_ENCRYPTED(inode))
max_zeroout = 0;
/*
@ -4818,7 +4818,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
* leave it disabled for encrypted inodes for now. This is a
* bug we should fix....
*/
if (ext4_encrypted_inode(inode) &&
if (IS_ENCRYPTED(inode) &&
(mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE |
FALLOC_FL_ZERO_RANGE)))
return -EOPNOTSUPP;

2
fs/ext4/ialloc.c
View File

@ -771,7 +771,7 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
if (unlikely(ext4_forced_shutdown(sbi)))
return ERR_PTR(-EIO);
if ((ext4_encrypted_inode(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
if ((IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
(S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) &&
!(i_flags & EXT4_EA_INODE_FL)) {
err = fscrypt_get_encryption_info(dir);

16
fs/ext4/inode.c
View File

@ -415,7 +415,7 @@ int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk, ext4_fsblk_t pblk,
{
int ret;
if (ext4_encrypted_inode(inode))
if (IS_ENCRYPTED(inode))
return fscrypt_zeroout_range(inode, lblk, pblk, len);
ret = sb_issue_zeroout(inode->i_sb, pblk, len, GFP_NOFS);
@ -1217,8 +1217,7 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
(block_start < from || block_end > to)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++ = bh;
decrypt = ext4_encrypted_inode(inode) &&
S_ISREG(inode->i_mode);
decrypt = IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
}
}
/*
@ -3881,7 +3880,7 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
ssize_t ret;
#ifdef CONFIG_EXT4_FS_ENCRYPTION
if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode))
if (IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode))
return 0;
#endif
@ -4065,8 +4064,7 @@ static int __ext4_block_zero_page_range(handle_t *handle,
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
goto unlock;
if (S_ISREG(inode->i_mode) &&
ext4_encrypted_inode(inode)) {
if (S_ISREG(inode->i_mode) && IS_ENCRYPTED(inode)) {
/* We expect the key to be set. */
BUG_ON(!fscrypt_has_encryption_key(inode));
BUG_ON(blocksize != PAGE_SIZE);
@ -4142,7 +4140,7 @@ static int ext4_block_truncate_page(handle_t *handle,
struct inode *inode = mapping->host;
/* If we are processing an encrypted inode during orphan list handling */
if (ext4_encrypted_inode(inode) && !fscrypt_has_encryption_key(inode))
if (IS_ENCRYPTED(inode) && !fscrypt_has_encryption_key(inode))
return 0;
blocksize = inode->i_sb->s_blocksize;
@ -4722,7 +4720,7 @@ static bool ext4_should_use_dax(struct inode *inode)
return false;
if (ext4_has_inline_data(inode))
return false;
if (ext4_encrypted_inode(inode))
if (ext4_test_inode_flag(inode, EXT4_INODE_ENCRYPT))
return false;
return true;
}
@ -5072,7 +5070,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
ret = -EFSCORRUPTED;
goto bad_inode;
}
if (ext4_encrypted_inode(inode)) {
if (IS_ENCRYPTED(inode)) {
inode->i_op = &ext4_encrypted_symlink_inode_operations;
ext4_set_aops(inode);
} else if (ext4_inode_is_fast_symlink(inode)) {

3
fs/ext4/move_extent.c
View File

@ -592,8 +592,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk,
return -EOPNOTSUPP;
}
if (ext4_encrypted_inode(orig_inode) ||
ext4_encrypted_inode(donor_inode)) {
if (IS_ENCRYPTED(orig_inode) || IS_ENCRYPTED(donor_inode)) {
ext4_msg(orig_inode->i_sb, KERN_ERR,
"Online defrag not supported for encrypted files");
return -EOPNOTSUPP;

8
fs/ext4/namei.c
View File

@ -621,7 +621,7 @@ static struct stats dx_show_leaf(struct inode *dir,
name = de->name;
len = de->name_len;
if (ext4_encrypted_inode(dir))
if (IS_ENCRYPTED(dir))
res = fscrypt_get_encryption_info(dir);
if (res) {
printk(KERN_WARNING "Error setting up"
@ -986,7 +986,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
EXT4_DIR_REC_LEN(0));
#ifdef CONFIG_EXT4_FS_ENCRYPTION
/* Check if the directory is encrypted */
if (ext4_encrypted_inode(dir)) {
if (IS_ENCRYPTED(dir)) {
err = fscrypt_get_encryption_info(dir);
if (err < 0) {
brelse(bh);
@ -1015,7 +1015,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
continue;
if (de->inode == 0)
continue;
if (!ext4_encrypted_inode(dir)) {
if (!IS_ENCRYPTED(dir)) {
tmp_str.name = de->name;
tmp_str.len = de->name_len;
err = ext4_htree_store_dirent(dir_file,
@ -1578,7 +1578,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
ino);
return ERR_PTR(-EFSCORRUPTED);
}
if (!IS_ERR(inode) && ext4_encrypted_inode(dir) &&
if (!IS_ERR(inode) && IS_ENCRYPTED(dir) &&
(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
!fscrypt_has_permitted_context(dir, inode)) {
ext4_warning(inode->i_sb,

3
fs/ext4/page-io.c
View File

@ -477,8 +477,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
bh = head = page_buffers(page);
if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode) &&
nr_to_submit) {
if (IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode) && nr_to_submit) {
gfp_t gfp_flags = GFP_NOFS;
retry_encrypt:

3
fs/ext4/readpage.c
View File

@ -242,8 +242,7 @@ int ext4_mpage_readpages(struct address_space *mapping,
if (bio == NULL) {
struct fscrypt_ctx *ctx = NULL;
if (ext4_encrypted_inode(inode) &&
S_ISREG(inode->i_mode)) {
if (IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode)) {
ctx = fscrypt_get_ctx(inode, GFP_NOFS);
if (IS_ERR(ctx))
goto set_error_page;