VFS: security/: d_backing_inode() annotations
most of the ->d_inode uses there refer to the same inode IO would
go to, i.e. d_backing_inode()
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 1511965..14b316f 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -555,7 +555,7 @@
static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
struct dentry *root = sb->s_root;
- struct inode *inode = root->d_inode;
+ struct inode *inode = d_backing_inode(root);
struct superblock_smack *sp = sb->s_security;
struct inode_smack *isp;
struct smack_known *skp;
@@ -851,15 +851,15 @@
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, old_dentry);
- isp = smk_of_inode(old_dentry->d_inode);
+ isp = smk_of_inode(d_backing_inode(old_dentry));
rc = smk_curacc(isp, MAY_WRITE, &ad);
- rc = smk_bu_inode(old_dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_bu_inode(d_backing_inode(old_dentry), MAY_WRITE, rc);
if (rc == 0 && d_is_positive(new_dentry)) {
- isp = smk_of_inode(new_dentry->d_inode);
+ isp = smk_of_inode(d_backing_inode(new_dentry));
smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
rc = smk_curacc(isp, MAY_WRITE, &ad);
- rc = smk_bu_inode(new_dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_bu_inode(d_backing_inode(new_dentry), MAY_WRITE, rc);
}
return rc;
@@ -875,7 +875,7 @@
*/
static int smack_inode_unlink(struct inode *dir, struct dentry *dentry)
{
- struct inode *ip = dentry->d_inode;
+ struct inode *ip = d_backing_inode(dentry);
struct smk_audit_info ad;
int rc;
@@ -918,8 +918,8 @@
/*
* You need write access to the thing you're removing
*/
- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
- rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_curacc(smk_of_inode(d_backing_inode(dentry)), MAY_WRITE, &ad);
+ rc = smk_bu_inode(d_backing_inode(dentry), MAY_WRITE, rc);
if (rc == 0) {
/*
* You also need write access to the containing directory
@@ -957,15 +957,15 @@
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, old_dentry);
- isp = smk_of_inode(old_dentry->d_inode);
+ isp = smk_of_inode(d_backing_inode(old_dentry));
rc = smk_curacc(isp, MAY_READWRITE, &ad);
- rc = smk_bu_inode(old_dentry->d_inode, MAY_READWRITE, rc);
+ rc = smk_bu_inode(d_backing_inode(old_dentry), MAY_READWRITE, rc);
if (rc == 0 && d_is_positive(new_dentry)) {
- isp = smk_of_inode(new_dentry->d_inode);
+ isp = smk_of_inode(d_backing_inode(new_dentry));
smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
rc = smk_curacc(isp, MAY_READWRITE, &ad);
- rc = smk_bu_inode(new_dentry->d_inode, MAY_READWRITE, rc);
+ rc = smk_bu_inode(d_backing_inode(new_dentry), MAY_READWRITE, rc);
}
return rc;
}
@@ -1022,8 +1022,8 @@
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
- rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_curacc(smk_of_inode(d_backing_inode(dentry)), MAY_WRITE, &ad);
+ rc = smk_bu_inode(d_backing_inode(dentry), MAY_WRITE, rc);
return rc;
}
@@ -1037,7 +1037,7 @@
static int smack_inode_getattr(const struct path *path)
{
struct smk_audit_info ad;
- struct inode *inode = path->dentry->d_inode;
+ struct inode *inode = d_backing_inode(path->dentry);
int rc;
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
@@ -1104,8 +1104,8 @@
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
if (rc == 0) {
- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
- rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_curacc(smk_of_inode(d_backing_inode(dentry)), MAY_WRITE, &ad);
+ rc = smk_bu_inode(d_backing_inode(dentry), MAY_WRITE, rc);
}
return rc;
@@ -1126,7 +1126,7 @@
const void *value, size_t size, int flags)
{
struct smack_known *skp;
- struct inode_smack *isp = dentry->d_inode->i_security;
+ struct inode_smack *isp = d_backing_inode(dentry)->i_security;
if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0) {
isp->smk_flags |= SMK_INODE_TRANSMUTE;
@@ -1171,8 +1171,8 @@
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
- rc = smk_bu_inode(dentry->d_inode, MAY_READ, rc);
+ rc = smk_curacc(smk_of_inode(d_backing_inode(dentry)), MAY_READ, &ad);
+ rc = smk_bu_inode(d_backing_inode(dentry), MAY_READ, rc);
return rc;
}
@@ -1208,12 +1208,12 @@
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
- rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ rc = smk_curacc(smk_of_inode(d_backing_inode(dentry)), MAY_WRITE, &ad);
+ rc = smk_bu_inode(d_backing_inode(dentry), MAY_WRITE, rc);
if (rc != 0)
return rc;
- isp = dentry->d_inode->i_security;
+ isp = d_backing_inode(dentry)->i_security;
/*
* Don't do anything special for these.
* XATTR_NAME_SMACKIPIN