diff options
Diffstat (limited to 'fs/ecryptfs/inode.c')
| -rw-r--r-- | fs/ecryptfs/inode.c | 164 |
1 files changed, 82 insertions, 82 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index b08b518..fc850b5 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -41,13 +41,13 @@ static struct dentry *lock_parent(struct dentry *dentry) struct dentry *dir; dir = dget_parent(dentry); - mutex_lock_nested(&(dir->d_inode->i_mutex), I_MUTEX_PARENT); + mutex_lock_nested(&(d_inode(dir)->i_mutex), I_MUTEX_PARENT); return dir; } static void unlock_dir(struct dentry *dir) { - mutex_unlock(&dir->d_inode->i_mutex); + mutex_unlock(&d_inode(dir)->i_mutex); dput(dir); } @@ -131,7 +131,7 @@ struct inode *ecryptfs_get_inode(struct inode *lower_inode, static int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry, struct super_block *sb) { - struct inode *inode = ecryptfs_get_inode(lower_dentry->d_inode, sb); + struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb); if (IS_ERR(inode)) return PTR_ERR(inode); @@ -189,21 +189,21 @@ ecryptfs_do_create(struct inode *directory_inode, lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry); lower_dir_dentry = lock_parent(lower_dentry); - rc = vfs_create(lower_dir_dentry->d_inode, lower_dentry, mode, true); + rc = vfs_create(d_inode(lower_dir_dentry), lower_dentry, mode, true); if (rc) { printk(KERN_ERR "%s: Failure to create dentry in lower fs; " "rc = [%d]\n", __func__, rc); inode = ERR_PTR(rc); goto out_lock; } - inode = __ecryptfs_get_inode(lower_dentry->d_inode, + inode = __ecryptfs_get_inode(d_inode(lower_dentry), directory_inode->i_sb); if (IS_ERR(inode)) { - vfs_unlink(lower_dir_dentry->d_inode, lower_dentry, NULL); + vfs_unlink(d_inode(lower_dir_dentry), lower_dentry, NULL); goto out_lock; } - fsstack_copy_attr_times(directory_inode, lower_dir_dentry->d_inode); - fsstack_copy_inode_size(directory_inode, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(directory_inode, d_inode(lower_dir_dentry)); + fsstack_copy_inode_size(directory_inode, d_inode(lower_dir_dentry)); out_lock: unlock_dir(lower_dir_dentry); return inode; @@ -332,7 +332,7 @@ static int ecryptfs_lookup_interpose(struct dentry *dentry, struct dentry *lower_dentry, struct inode *dir_inode) { - struct inode *inode, *lower_inode = lower_dentry->d_inode; + struct inode *inode, *lower_inode = d_inode(lower_dentry); struct ecryptfs_dentry_info *dentry_info; struct vfsmount *lower_mnt; int rc = 0; @@ -347,14 +347,14 @@ static int ecryptfs_lookup_interpose(struct dentry *dentry, } lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(dentry->d_parent)); - fsstack_copy_attr_atime(dir_inode, lower_dentry->d_parent->d_inode); + fsstack_copy_attr_atime(dir_inode, d_inode(lower_dentry->d_parent)); BUG_ON(!d_count(lower_dentry)); ecryptfs_set_dentry_private(dentry, dentry_info); dentry_info->lower_path.mnt = lower_mnt; dentry_info->lower_path.dentry = lower_dentry; - if (!lower_dentry->d_inode) { + if (d_really_is_negative(lower_dentry)) { /* We want to add because we couldn't find in lower */ d_add(dentry, NULL); return 0; @@ -400,11 +400,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode, int rc = 0; lower_dir_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry->d_parent); - mutex_lock(&lower_dir_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dir_dentry)->i_mutex); lower_dentry = lookup_one_len(ecryptfs_dentry->d_name.name, lower_dir_dentry, ecryptfs_dentry->d_name.len); - mutex_unlock(&lower_dir_dentry->d_inode->i_mutex); + mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex); if (IS_ERR(lower_dentry)) { rc = PTR_ERR(lower_dentry); ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned " @@ -412,7 +412,7 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode, ecryptfs_dentry); goto out; } - if (lower_dentry->d_inode) + if (d_really_is_positive(lower_dentry)) goto interpose; mount_crypt_stat = &ecryptfs_superblock_to_private( ecryptfs_dentry->d_sb)->mount_crypt_stat; @@ -429,11 +429,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode, "filename; rc = [%d]\n", __func__, rc); goto out; } - mutex_lock(&lower_dir_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dir_dentry)->i_mutex); lower_dentry = lookup_one_len(encrypted_and_encoded_name, lower_dir_dentry, encrypted_and_encoded_name_size); - mutex_unlock(&lower_dir_dentry->d_inode->i_mutex); + mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex); if (IS_ERR(lower_dentry)) { rc = PTR_ERR(lower_dentry); ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned " @@ -458,24 +458,24 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir, u64 file_size_save; int rc; - file_size_save = i_size_read(old_dentry->d_inode); + file_size_save = i_size_read(d_inode(old_dentry)); lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); dget(lower_old_dentry); dget(lower_new_dentry); lower_dir_dentry = lock_parent(lower_new_dentry); - rc = vfs_link(lower_old_dentry, lower_dir_dentry->d_inode, + rc = vfs_link(lower_old_dentry, d_inode(lower_dir_dentry), lower_new_dentry, NULL); - if (rc || !lower_new_dentry->d_inode) + if (rc || d_really_is_negative(lower_new_dentry)) goto out_lock; rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb); if (rc) goto out_lock; - fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); - fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); - set_nlink(old_dentry->d_inode, - ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink); - i_size_write(new_dentry->d_inode, file_size_save); + fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry)); + fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry)); + set_nlink(d_inode(old_dentry), + ecryptfs_inode_to_lower(d_inode(old_dentry))->i_nlink); + i_size_write(d_inode(new_dentry), file_size_save); out_lock: unlock_dir(lower_dir_dentry); dput(lower_new_dentry); @@ -485,7 +485,7 @@ out_lock: static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry) { - return ecryptfs_do_unlink(dir, dentry, dentry->d_inode); + return ecryptfs_do_unlink(dir, dentry, d_inode(dentry)); } static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry, @@ -510,20 +510,20 @@ static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry, strlen(symname)); if (rc) goto out_lock; - rc = vfs_symlink(lower_dir_dentry->d_inode, lower_dentry, + rc = vfs_symlink(d_inode(lower_dir_dentry), lower_dentry, encoded_symname); kfree(encoded_symname); - if (rc || !lower_dentry->d_inode) + if (rc || d_really_is_negative(lower_dentry)) goto out_lock; rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb); if (rc) goto out_lock; - fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); - fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry)); + fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry)); out_lock: unlock_dir(lower_dir_dentry); dput(lower_dentry); - if (!dentry->d_inode) + if (d_really_is_negative(dentry)) d_drop(dentry); return rc; } @@ -536,18 +536,18 @@ static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode lower_dentry = ecryptfs_dentry_to_lower(dentry); lower_dir_dentry = lock_parent(lower_dentry); - rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode); - if (rc || !lower_dentry->d_inode) + rc = vfs_mkdir(d_inode(lower_dir_dentry), lower_dentry, mode); + if (rc || d_really_is_negative(lower_dentry)) goto out; rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb); if (rc) goto out; - fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); - fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); - set_nlink(dir, lower_dir_dentry->d_inode->i_nlink); + fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry)); + fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry)); + set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink); out: unlock_dir(lower_dir_dentry); - if (!dentry->d_inode) + if (d_really_is_negative(dentry)) d_drop(dentry); return rc; } @@ -562,12 +562,12 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry) dget(dentry); lower_dir_dentry = lock_parent(lower_dentry); dget(lower_dentry); - rc = vfs_rmdir(lower_dir_dentry->d_inode, lower_dentry); + rc = vfs_rmdir(d_inode(lower_dir_dentry), lower_dentry); dput(lower_dentry); - if (!rc && dentry->d_inode) - clear_nlink(dentry->d_inode); - fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); - set_nlink(dir, lower_dir_dentry->d_inode->i_nlink); + if (!rc && d_really_is_positive(dentry)) + clear_nlink(d_inode(dentry)); + fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry)); + set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink); unlock_dir(lower_dir_dentry); if (!rc) d_drop(dentry); @@ -584,17 +584,17 @@ ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev lower_dentry = ecryptfs_dentry_to_lower(dentry); lower_dir_dentry = lock_parent(lower_dentry); - rc = vfs_mknod(lower_dir_dentry->d_inode, lower_dentry, mode, dev); - if (rc || !lower_dentry->d_inode) + rc = vfs_mknod(d_inode(lower_dir_dentry), lower_dentry, mode, dev); + if (rc || d_really_is_negative(lower_dentry)) goto out; rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb); if (rc) goto out; - fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); - fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry)); + fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry)); out: unlock_dir(lower_dir_dentry); - if (!dentry->d_inode) + if (d_really_is_negative(dentry)) d_drop(dentry); return rc; } @@ -617,7 +617,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, dget(lower_new_dentry); lower_old_dir_dentry = dget_parent(lower_old_dentry); lower_new_dir_dentry = dget_parent(lower_new_dentry); - target_inode = new_dentry->d_inode; + target_inode = d_inode(new_dentry); trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); /* source should not be ancestor of target */ if (trap == lower_old_dentry) { @@ -629,17 +629,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, rc = -ENOTEMPTY; goto out_lock; } - rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry, - lower_new_dir_dentry->d_inode, lower_new_dentry, + rc = vfs_rename(d_inode(lower_old_dir_dentry), lower_old_dentry, + d_inode(lower_new_dir_dentry), lower_new_dentry, NULL, 0); if (rc) goto out_lock; if (target_inode) fsstack_copy_attr_all(target_inode, ecryptfs_inode_to_lower(target_inode)); - fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode); + fsstack_copy_attr_all(new_dir, d_inode(lower_new_dir_dentry)); if (new_dir != old_dir) - fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode); + fsstack_copy_attr_all(old_dir, d_inode(lower_old_dir_dentry)); out_lock: unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry); dput(lower_new_dir_dentry); @@ -662,7 +662,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz) return ERR_PTR(-ENOMEM); old_fs = get_fs(); set_fs(get_ds()); - rc = lower_dentry->d_inode->i_op->readlink(lower_dentry, + rc = d_inode(lower_dentry)->i_op->readlink(lower_dentry, (char __user *)lower_buf, PATH_MAX); set_fs(old_fs); @@ -681,8 +681,8 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd) char *buf = ecryptfs_readlink_lower(dentry, &len); if (IS_ERR(buf)) goto out; - fsstack_copy_attr_atime(dentry->d_inode, - ecryptfs_dentry_to_lower(dentry)->d_inode); + fsstack_copy_attr_atime(d_inode(dentry), + d_inode(ecryptfs_dentry_to_lower(dentry))); buf[len] = '\0'; out: nd_set_link(nd, buf); @@ -738,7 +738,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia, struct iattr *lower_ia) { int rc = 0; - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct ecryptfs_crypt_stat *crypt_stat; loff_t i_size = i_size_read(inode); loff_t lower_size_before_truncate; @@ -751,7 +751,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia, rc = ecryptfs_get_lower_file(dentry, inode); if (rc) return rc; - crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat; + crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat; /* Switch on growing or shrinking file */ if (ia->ia_size > i_size) { char zero[] = { 0x00 }; @@ -858,7 +858,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) struct iattr lower_ia = { .ia_valid = 0 }; int rc; - rc = ecryptfs_inode_newsize_ok(dentry->d_inode, new_length); + rc = ecryptfs_inode_newsize_ok(d_inode(dentry), new_length); if (rc) return rc; @@ -866,9 +866,9 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) if (!rc && lower_ia.ia_valid & ATTR_SIZE) { struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); - mutex_lock(&lower_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dentry)->i_mutex); rc = notify_change(lower_dentry, &lower_ia, NULL); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_unlock(&d_inode(lower_dentry)->i_mutex); } return rc; } @@ -900,10 +900,10 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) struct inode *lower_inode; struct ecryptfs_crypt_stat *crypt_stat; - crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat; + crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat; if (!(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED)) ecryptfs_init_crypt_stat(crypt_stat); - inode = dentry->d_inode; + inode = d_inode(dentry); lower_inode = ecryptfs_inode_to_lower(inode); lower_dentry = ecryptfs_dentry_to_lower(dentry); mutex_lock(&crypt_stat->cs_mutex); @@ -967,9 +967,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) lower_ia.ia_valid &= ~ATTR_MODE; - mutex_lock(&lower_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dentry)->i_mutex); rc = notify_change(lower_dentry, &lower_ia, NULL); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_unlock(&d_inode(lower_dentry)->i_mutex); out: fsstack_copy_attr_all(inode, lower_inode); return rc; @@ -983,7 +983,7 @@ static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry, mount_crypt_stat = &ecryptfs_superblock_to_private( dentry->d_sb)->mount_crypt_stat; - generic_fillattr(dentry->d_inode, stat); + generic_fillattr(d_inode(dentry), stat); if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) { char *target; size_t targetsiz; @@ -1007,9 +1007,9 @@ static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry, rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat); if (!rc) { - fsstack_copy_attr_all(dentry->d_inode, - ecryptfs_inode_to_lower(dentry->d_inode)); - generic_fillattr(dentry->d_inode, stat); + fsstack_copy_attr_all(d_inode(dentry), + ecryptfs_inode_to_lower(d_inode(dentry))); + generic_fillattr(d_inode(dentry), stat); stat->blocks = lower_stat.blocks; } return rc; @@ -1023,14 +1023,14 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, struct dentry *lower_dentry; lower_dentry = ecryptfs_dentry_to_lower(dentry); - if (!lower_dentry->d_inode->i_op->setxattr) { + if (!d_inode(lower_dentry)->i_op->setxattr) { rc = -EOPNOTSUPP; goto out; } rc = vfs_setxattr(lower_dentry, name, value, size, flags); - if (!rc && dentry->d_inode) - fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode); + if (!rc && d_really_is_positive(dentry)) + fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry)); out: return rc; } @@ -1041,14 +1041,14 @@ ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name, { int rc = 0; - if (!lower_dentry->d_inode->i_op->getxattr) { + if (!d_inode(lower_dentry)->i_op->getxattr) { rc = -EOPNOTSUPP; goto out; } - mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = lower_dentry->d_inode->i_op->getxattr(lower_dentry, name, value, + mutex_lock(&d_inode(lower_dentry)->i_mutex); + rc = d_inode(lower_dentry)->i_op->getxattr(lower_dentry, name, value, size); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_unlock(&d_inode(lower_dentry)->i_mutex); out: return rc; } @@ -1068,13 +1068,13 @@ ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size) struct dentry *lower_dentry; lower_dentry = ecryptfs_dentry_to_lower(dentry); - if (!lower_dentry->d_inode->i_op->listxattr) { + if (!d_inode(lower_dentry)->i_op->listxattr) { rc = -EOPNOTSUPP; goto out; } - mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = lower_dentry->d_inode->i_op->listxattr(lower_dentry, list, size); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dentry)->i_mutex); + rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size); + mutex_unlock(&d_inode(lower_dentry)->i_mutex); out: return rc; } @@ -1085,13 +1085,13 @@ static int ecryptfs_removexattr(struct dentry *dentry, const char *name) struct dentry *lower_dentry; lower_dentry = ecryptfs_dentry_to_lower(dentry); - if (!lower_dentry->d_inode->i_op->removexattr) { + if (!d_inode(lower_dentry)->i_op->removexattr) { rc = -EOPNOTSUPP; goto out; } - mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = lower_dentry->d_inode->i_op->removexattr(lower_dentry, name); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_lock(&d_inode(lower_dentry)->i_mutex); + rc = d_inode(lower_dentry)->i_op->removexattr(lower_dentry, name); + mutex_unlock(&d_inode(lower_dentry)->i_mutex); out: return rc; } |
