From c6f493d631c4d40cea5c36055f9148f547b200af Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 17 Mar 2015 22:26:22 +0000 Subject: 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 Signed-off-by: Al Viro --- security/smack/smack_lsm.c | 46 +++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-) (limited to 'security/smack') diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 1511965549b8..14b316f60fc5 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -555,7 +555,7 @@ static int smack_sb_copy_data(char *orig, char *smackopts) 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 @@ static int smack_inode_link(struct dentry *old_dentry, struct inode *dir, 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_link(struct dentry *old_dentry, struct inode *dir, */ 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 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry) /* * 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 @@ static int smack_inode_rename(struct inode *old_inode, 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 @@ static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr) 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_setattr(struct dentry *dentry, struct iattr *iattr) 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 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name, 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 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name, 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 @@ static int smack_inode_getxattr(struct dentry *dentry, const char *name) 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 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name) 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 -- cgit v1.2.3-59-g8ed1b From ce0b16ddf18df35026164fda4a642ef10c01f442 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 19 Feb 2015 10:47:02 +0000 Subject: VFS: security/: d_inode() annotations ... except where that code acts as a filesystem driver, rather than working with dentries given to it. Signed-off-by: David Howells Signed-off-by: Al Viro --- security/apparmor/apparmorfs.c | 2 +- security/inode.c | 18 +++++++++--------- security/selinux/selinuxfs.c | 2 +- security/smack/smackfs.c | 2 +- 4 files changed, 12 insertions(+), 12 deletions(-) (limited to 'security/smack') diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c index 7db9954f1af2..ad4fa49ad1db 100644 --- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@ -365,7 +365,7 @@ void __aa_fs_profile_rmdir(struct aa_profile *profile) if (!profile->dents[i]) continue; - r = profile->dents[i]->d_inode->i_private; + r = d_inode(profile->dents[i])->i_private; securityfs_remove(profile->dents[i]); aa_put_replacedby(r); profile->dents[i] = NULL; diff --git a/security/inode.c b/security/inode.c index 131a3c49f766..91503b79c5f8 100644 --- a/security/inode.c +++ b/security/inode.c @@ -27,7 +27,7 @@ static int mount_count; static inline int positive(struct dentry *dentry) { - return dentry->d_inode && !d_unhashed(dentry); + return d_really_is_positive(dentry) && !d_unhashed(dentry); } static int fill_super(struct super_block *sb, void *data, int silent) @@ -102,14 +102,14 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode, if (!parent) parent = mount->mnt_root; - dir = parent->d_inode; + dir = d_inode(parent); mutex_lock(&dir->i_mutex); dentry = lookup_one_len(name, parent, strlen(name)); if (IS_ERR(dentry)) goto out; - if (dentry->d_inode) { + if (d_really_is_positive(dentry)) { error = -EEXIST; goto out1; } @@ -197,20 +197,20 @@ void securityfs_remove(struct dentry *dentry) return; parent = dentry->d_parent; - if (!parent || !parent->d_inode) + if (!parent || d_really_is_negative(parent)) return; - mutex_lock(&parent->d_inode->i_mutex); + mutex_lock(&d_inode(parent)->i_mutex); if (positive(dentry)) { - if (dentry->d_inode) { + if (d_really_is_positive(dentry)) { if (d_is_dir(dentry)) - simple_rmdir(parent->d_inode, dentry); + simple_rmdir(d_inode(parent), dentry); else - simple_unlink(parent->d_inode, dentry); + simple_unlink(d_inode(parent), dentry); dput(dentry); } } - mutex_unlock(&parent->d_inode->i_mutex); + mutex_unlock(&d_inode(parent)->i_mutex); simple_release_fs(&mount, &mount_count); } EXPORT_SYMBOL_GPL(securityfs_remove); diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 5fde34326dcf..d2787cca1fcb 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -1737,7 +1737,7 @@ static struct dentry *sel_make_dir(struct dentry *dir, const char *name, inc_nlink(inode); d_add(dentry, inode); /* bump link count on parent directory, too */ - inc_nlink(dir->d_inode); + inc_nlink(d_inode(dir)); return dentry; } diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index bce4e8f1b267..2611a651c344 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -2395,7 +2395,7 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent) return rc; } - root_inode = sb->s_root->d_inode; + root_inode = d_inode(sb->s_root); return 0; } -- cgit v1.2.3-59-g8ed1b