[PATCH V2 5/7] ext4: use IS_VERITY() to check inode's fsverity status

Chandan Rajendra
2018-12-04T09:57:45Z

This commit now uses IS_VERITY() macro to check if fsverity is
enabled on an inode.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
---
fs/ext4/ext4.h | 9 ---------
fs/ext4/file.c | 2 +-
fs/ext4/inode.c | 10 ++++++----
fs/ext4/readpage.c | 2 +-
fs/ext4/super.c | 1 +
5 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index db21df885186..64bf9fb7ef18 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2296,15 +2296,6 @@ 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_verity_inode(struct inode *inode)
-{
-#ifdef CONFIG_EXT4_FS_VERITY
- return ext4_test_inode_flag(inode, EXT4_INODE_VERITY);
-#else
- return false;
-#endif
-}
-
#ifdef CONFIG_FS_ENCRYPTION
static inline int ext4_fname_setup_filename(struct inode *dir,
const struct qstr *iname,
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index cb4b69ef01a2..30fbd663354f 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -444,7 +444,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
if (ret)
return ret;

- if (ext4_verity_inode(inode)) {
+ if (IS_VERITY(inode)) {
ret = fsverity_file_open(inode, filp);
if (ret)
return ret;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 09d8857b0e3c..79d14d8bbbf4 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3884,7 +3884,7 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
return 0;
#endif

- if (ext4_verity_inode(inode))
+ if (IS_VERITY(inode))
return 0;

/*
@@ -4726,7 +4726,7 @@ static bool ext4_should_use_dax(struct inode *inode)
return false;
if (ext4_test_inode_flag(inode, EXT4_INODE_ENCRYPT))
return false;
- if (ext4_verity_inode(inode))
+ if (ext4_test_inode_flag(inode, EXT4_INODE_VERITY))
return false;
return true;
}
@@ -4750,9 +4750,11 @@ void ext4_set_inode_flags(struct inode *inode)
new_fl |= S_DAX;
if (flags & EXT4_ENCRYPT_FL)
new_fl |= S_ENCRYPTED;
+ if (flags & EXT4_VERITY_FL)
+ new_fl |= S_VERITY;
inode_set_flags(inode, new_fl,
S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX|
- S_ENCRYPTED);
+ S_ENCRYPTED|S_VERITY);
}

static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
@@ -5510,7 +5512,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
if (error)
return error;

- if (ext4_verity_inode(inode)) {
+ if (IS_VERITY(inode)) {
error = fsverity_prepare_setattr(dentry, attr);
if (error)
return error;
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index 7252f0a60cdb..2c037df629dd 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -206,7 +206,7 @@ static void mpage_end_io(struct bio *bio)
static inline loff_t ext4_readpage_limit(struct inode *inode)
{
#ifdef CONFIG_EXT4_FS_VERITY
- if (ext4_verity_inode(inode)) {
+ if (IS_VERITY(inode)) {
if (inode->i_verity_info)
/* limit to end of metadata region */
return fsverity_full_i_size(inode);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 16fb483a6f4a..35ed3c48f8d2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1344,6 +1344,7 @@ static int ext4_set_verity(struct inode *inode, loff_t data_i_size)
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err == 0) {
ext4_set_inode_flag(inode, EXT4_INODE_VERITY);
+ ext4_set_inode_flags(inode);
EXT4_I(inode)->i_disksize = data_i_size;
err = ext4_mark_iloc_dirty(handle, inode, &iloc);
}
--
2.19.1