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Violators will be prosecuted for from ; Sat, 8 Dec 2018 06:52:11 -0000 From: Chandan Rajendra To: linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-doc@vger.kernel.org, linux-mips@linux-mips.org, linux-s390@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org Cc: Chandan Rajendra , tytso@mit.edu, adilger.kernel@dilger.ca, ebiggers@kernel.org, jaegeuk@kernel.org, yuchao0@huawei.com, corbet@lwn.net, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, green.hu@gmail.com, deanbo422@gmail.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, richard@nod.at, dedekind1@gmail.com, adrian.hunter@intel.com, viro@zeniv.linux.org.uk Subject: [PATCH V3 1/9] ext4: use IS_ENCRYPTED() to check encryption status Date: Sat, 8 Dec 2018 12:21:36 +0530 In-Reply-To: <20181208065144.19486-1-chandan@linux.vnet.ibm.com> References: <20181208065144.19486-1-chandan@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20181208065144.19486-2-chandan@linux.vnet.ibm.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: 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 Signed-off-by: Chandan Rajendra --- fs/ext4/dir.c | 8 ++++---- fs/ext4/ext4.h | 5 ----- fs/ext4/ext4_jbd2.h | 2 +- fs/ext4/extents.c | 4 ++-- fs/ext4/ialloc.c | 2 +- fs/ext4/inode.c | 16 +++++++--------- fs/ext4/move_extent.c | 3 +-- fs/ext4/namei.c | 8 ++++---- fs/ext4/page-io.c | 3 +-- fs/ext4/readpage.c | 2 +- 10 files changed, 22 insertions(+), 31 deletions(-) diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index f93f9881ec18..fb7a64ea5679 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -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 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx) 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; } diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 80957f9d3cbe..2ae6ab88f218 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2297,11 +2297,6 @@ 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); -} - static inline bool ext4_verity_inode(struct inode *inode) { #ifdef CONFIG_EXT4_FS_VERITY diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index 15b6dd733780..a1ac7e9245ec 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -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 */ } diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 240b6dea5441..79d986dbf5af 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -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; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 2addcb8730e1..3002f110eb4f 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -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); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d7019f5dca6f..0efa30f921b0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -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); } } /* @@ -3880,7 +3879,7 @@ 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 @@ -4067,8 +4066,7 @@ 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); @@ -4144,7 +4142,7 @@ 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; @@ -4724,7 +4722,7 @@ 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; if (ext4_verity_inode(inode)) return false; @@ -5050,7 +5048,7 @@ 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)) { diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index 2f5be02fc6f6..1083a9f3f16a 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -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; diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 67a38532032a..0de60207a963 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -620,7 +620,7 @@ 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" @@ -985,7 +985,7 @@ 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); @@ -1014,7 +1014,7 @@ 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, @@ -1577,7 +1577,7 @@ 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, diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 2aa62d58d8dd..c398b55da854 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -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: diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c index d3dd1ff745db..45e707fb9749 100644 --- a/fs/ext4/readpage.c +++ b/fs/ext4/readpage.c @@ -156,7 +156,7 @@ static struct bio_post_read_ctx *get_bio_post_read_ctx(struct inode *inode, unsigned int post_read_steps = 0; struct bio_post_read_ctx *ctx = NULL; - if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode)) + if (IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode)) post_read_steps |= 1 << STEP_DECRYPT; #ifdef CONFIG_EXT4_FS_VERITY if (inode->i_verity_info != NULL && -- 2.19.1