46 static int iget_test(struct inode *inode, void *opaque)  in iget_test()  argument
48 	struct gfs2_inode *ip = GFS2_I(inode);  in iget_test()
53 		    inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) {  in iget_test()
62 static int iget_set(struct inode *inode, void *opaque)  in iget_set()  argument
64 	struct gfs2_inode *ip = GFS2_I(inode);  in iget_set()
69 	inode->i_ino = (unsigned long)(data->no_addr);  in iget_set()
74 struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr, int non_block)  in gfs2_ilookup()
85 static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr,  in gfs2_iget()
105 static void gfs2_set_iop(struct inode *inode)  in gfs2_set_iop()  argument
107 	struct gfs2_sbd *sdp = GFS2_SB(inode);  in gfs2_set_iop()
108 	umode_t mode = inode->i_mode;  in gfs2_set_iop()
111 		inode->i_op = &gfs2_file_iops;  in gfs2_set_iop()
113 			inode->i_fop = &gfs2_file_fops_nolock;  in gfs2_set_iop()
115 			inode->i_fop = &gfs2_file_fops;  in gfs2_set_iop()
117 		inode->i_op = &gfs2_dir_iops;  in gfs2_set_iop()
119 			inode->i_fop = &gfs2_dir_fops_nolock;  in gfs2_set_iop()
121 			inode->i_fop = &gfs2_dir_fops;  in gfs2_set_iop()
123 		inode->i_op = &gfs2_symlink_iops;  in gfs2_set_iop()
125 		inode->i_op = &gfs2_file_iops;  in gfs2_set_iop()
126 		init_special_inode(inode, inode->i_mode, inode->i_rdev);  in gfs2_set_iop()
140 struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,  in gfs2_inode_lookup()
143 	struct inode *inode;  in gfs2_inode_lookup()  local
148 	inode = gfs2_iget(sb, no_addr, non_block);  in gfs2_inode_lookup()
149 	ip = GFS2_I(inode);  in gfs2_inode_lookup()
151 	if (!inode)  in gfs2_inode_lookup()
154 	if (inode->i_state & I_NEW) {  in gfs2_inode_lookup()
155 		struct gfs2_sbd *sdp = GFS2_SB(inode);  in gfs2_inode_lookup()
178 			error = gfs2_inode_refresh(GFS2_I(inode));  in gfs2_inode_lookup()
182 			inode->i_mode = DT2IF(type);  in gfs2_inode_lookup()
185 		gfs2_set_iop(inode);  in gfs2_inode_lookup()
186 		unlock_new_inode(inode);  in gfs2_inode_lookup()
189 	return inode;  in gfs2_inode_lookup()
202 	iget_failed(inode);  in gfs2_inode_lookup()
206 struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,  in gfs2_lookup_by_inum()
211 	struct inode *inode = NULL;  in gfs2_lookup_by_inum()  local
224 	inode = gfs2_inode_lookup(sb, DT_UNKNOWN, no_addr, 0, 1);  in gfs2_lookup_by_inum()
225 	if (IS_ERR(inode))  in gfs2_lookup_by_inum()
231 		if (GFS2_I(inode)->i_no_formal_ino != *no_formal_ino)  in gfs2_lookup_by_inum()
235 		if (GFS2_I(inode)->i_diskflags & GFS2_DIF_SYSTEM)  in gfs2_lookup_by_inum()
243 	return error ? ERR_PTR(error) : inode;  in gfs2_lookup_by_inum()
245 	iput(inode);  in gfs2_lookup_by_inum()
250 struct inode *gfs2_lookup_simple(struct inode *dip, const char *name)  in gfs2_lookup_simple()
253 	struct inode *inode;  in gfs2_lookup_simple()  local
255 	inode = gfs2_lookupi(dip, &qstr, 1);  in gfs2_lookup_simple()
261 	if (inode == NULL)  in gfs2_lookup_simple()
264 		return inode;  in gfs2_lookup_simple()
283 struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,  in gfs2_lookupi()
290 	struct inode *inode = NULL;  in gfs2_lookupi()  local
316 	inode = gfs2_dir_search(dir, name, false);  in gfs2_lookupi()
317 	if (IS_ERR(inode))  in gfs2_lookupi()
318 		error = PTR_ERR(inode);  in gfs2_lookupi()
324 	return inode ? inode : ERR_PTR(error);  in gfs2_lookupi()
358 			       struct inode *inode)  in munge_mode_uid_gid()  argument
363 		if (S_ISDIR(inode->i_mode))  in munge_mode_uid_gid()
364 			inode->i_mode |= S_ISUID;  in munge_mode_uid_gid()
366 			inode->i_mode &= ~07111;  in munge_mode_uid_gid()
367 		inode->i_uid = dip->i_inode.i_uid;  in munge_mode_uid_gid()
369 		inode->i_uid = current_fsuid();  in munge_mode_uid_gid()
372 		if (S_ISDIR(inode->i_mode))  in munge_mode_uid_gid()
373 			inode->i_mode |= S_ISGID;  in munge_mode_uid_gid()
374 		inode->i_gid = dip->i_inode.i_gid;  in munge_mode_uid_gid()
376 		inode->i_gid = current_fsgid();  in munge_mode_uid_gid()
555 static int gfs2_initxattrs(struct inode *inode, const struct xattr *xattr_array,  in gfs2_initxattrs()  argument
562 		err = __gfs2_xattr_set(inode, xattr->name, xattr->value,  in gfs2_initxattrs()
584 static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,  in gfs2_create_inode()
592 	struct inode *inode = NULL;  in gfs2_create_inode()  local
620 	inode = gfs2_dir_search(dir, &dentry->d_name, !S_ISREG(mode) || excl);  in gfs2_create_inode()
621 	error = PTR_ERR(inode);  in gfs2_create_inode()
622 	if (!IS_ERR(inode)) {  in gfs2_create_inode()
623 		if (S_ISDIR(inode->i_mode)) {  in gfs2_create_inode()
624 			iput(inode);  in gfs2_create_inode()
625 			inode = ERR_PTR(-EISDIR);  in gfs2_create_inode()
628 		d_instantiate(dentry, inode);  in gfs2_create_inode()
631 			if (S_ISREG(inode->i_mode))  in gfs2_create_inode()
646 	inode = new_inode(sdp->sd_vfs);  in gfs2_create_inode()
648 	if (!inode)  in gfs2_create_inode()
655 	ip = GFS2_I(inode);  in gfs2_create_inode()
660 	inode->i_mode = mode;  in gfs2_create_inode()
661 	set_nlink(inode, S_ISDIR(mode) ? 2 : 1);  in gfs2_create_inode()
662 	inode->i_rdev = dev;  in gfs2_create_inode()
663 	inode->i_size = size;  in gfs2_create_inode()
664 	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;  in gfs2_create_inode()
665 	gfs2_set_inode_blocks(inode, 1);  in gfs2_create_inode()
666 	munge_mode_uid_gid(dip, inode);  in gfs2_create_inode()
680 		gfs2_set_aops(inode);  in gfs2_create_inode()
688 	gfs2_set_inode_flags(inode);  in gfs2_create_inode()
701 	gfs2_set_inode_blocks(inode, blocks);  in gfs2_create_inode()
733 	gfs2_set_iop(inode);  in gfs2_create_inode()
734 	insert_inode_hash(inode);  in gfs2_create_inode()
737 		error = gfs2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);  in gfs2_create_inode()
742 			error = gfs2_set_acl(inode, acl, ACL_TYPE_ACCESS);  in gfs2_create_inode()
758 	mark_inode_dirty(inode);  in gfs2_create_inode()
759 	d_instantiate(dentry, inode);  in gfs2_create_inode()
790 	if (inode && !IS_ERR(inode)) {  in gfs2_create_inode()
791 		clear_nlink(inode);  in gfs2_create_inode()
793 			mark_inode_dirty(inode);  in gfs2_create_inode()
795 			&GFS2_I(inode)->i_flags);  in gfs2_create_inode()
796 		iput(inode);  in gfs2_create_inode()
811 static int gfs2_create(struct inode *dir, struct dentry *dentry,  in gfs2_create()
828 static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,  in __gfs2_lookup()
831 	struct inode *inode;  in __gfs2_lookup()  local
837 	inode = gfs2_lookupi(dir, &dentry->d_name, 0);  in __gfs2_lookup()
838 	if (inode == NULL) {  in __gfs2_lookup()
842 	if (IS_ERR(inode))  in __gfs2_lookup()
843 		return ERR_CAST(inode);  in __gfs2_lookup()
845 	gl = GFS2_I(inode)->i_gl;  in __gfs2_lookup()
848 		iput(inode);  in __gfs2_lookup()
852 	d = d_splice_alias(inode, dentry);  in __gfs2_lookup()
857 	if (file && S_ISREG(inode->i_mode))  in __gfs2_lookup()
868 static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,  in gfs2_lookup()
886 static int gfs2_link(struct dentry *old_dentry, struct inode *dir,  in gfs2_link()
891 	struct inode *inode = d_inode(old_dentry);  in gfs2_link()  local
892 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_link()
898 	if (S_ISDIR(inode->i_mode))  in gfs2_link()
917 	if (inode->i_nlink == 0)  in gfs2_link()
941 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))  in gfs2_link()
984 	ihold(inode);  in gfs2_link()
985 	d_instantiate(dentry, inode);  in gfs2_link()
986 	mark_inode_dirty(inode);  in gfs2_link()
1058 	struct inode *inode = d_inode(dentry);  in gfs2_unlink_inode()  local
1059 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_unlink_inode()
1067 	inode->i_ctime = CURRENT_TIME;  in gfs2_unlink_inode()
1068 	if (S_ISDIR(inode->i_mode))  in gfs2_unlink_inode()
1069 		clear_nlink(inode);  in gfs2_unlink_inode()
1071 		drop_nlink(inode);  in gfs2_unlink_inode()
1072 	mark_inode_dirty(inode);  in gfs2_unlink_inode()
1073 	if (inode->i_nlink == 0)  in gfs2_unlink_inode()
1074 		gfs2_unlink_di(inode);  in gfs2_unlink_inode()
1090 static int gfs2_unlink(struct inode *dir, struct dentry *dentry)  in gfs2_unlink()
1094 	struct inode *inode = d_inode(dentry);  in gfs2_unlink()  local
1095 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_unlink()
1125 	if (inode->i_nlink == 0)  in gfs2_unlink()
1128 	if (S_ISDIR(inode->i_mode)) {  in gfs2_unlink()
1130 		if (ip->i_entries > 2 || inode->i_nlink > 2)  in gfs2_unlink()
1173 static int gfs2_symlink(struct inode *dir, struct dentry *dentry,  in gfs2_symlink()
1195 static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in gfs2_mkdir()
1211 static int gfs2_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,  in gfs2_mknod()
1229 static int gfs2_atomic_open(struct inode *dir, struct dentry *dentry,  in gfs2_atomic_open()
1273 	struct inode *dir = &to->i_inode;  in gfs2_ok_to_move()
1275 	struct inode *tmp;  in gfs2_ok_to_move()
1319 static int gfs2_rename(struct inode *odir, struct dentry *odentry,  in gfs2_rename()
1320 		       struct inode *ndir, struct dentry *ndentry)  in gfs2_rename()
1606 int gfs2_permission(struct inode *inode, int mask)  in gfs2_permission()  argument
1614 	ip = GFS2_I(inode);  in gfs2_permission()
1624 	if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))  in gfs2_permission()
1627 		error = generic_permission(inode, mask);  in gfs2_permission()
1634 static int __gfs2_setattr_simple(struct inode *inode, struct iattr *attr)  in __gfs2_setattr_simple()  argument
1636 	setattr_copy(inode, attr);  in __gfs2_setattr_simple()
1637 	mark_inode_dirty(inode);  in __gfs2_setattr_simple()
1649 int gfs2_setattr_simple(struct inode *inode, struct iattr *attr)  in gfs2_setattr_simple()  argument
1654 		return __gfs2_setattr_simple(inode, attr);  in gfs2_setattr_simple()
1656 	error = gfs2_trans_begin(GFS2_SB(inode), RES_DINODE, 0);  in gfs2_setattr_simple()
1660 	error = __gfs2_setattr_simple(inode, attr);  in gfs2_setattr_simple()
1661 	gfs2_trans_end(GFS2_SB(inode));  in gfs2_setattr_simple()
1665 static int setattr_chown(struct inode *inode, struct iattr *attr)  in setattr_chown()  argument
1667 	struct gfs2_inode *ip = GFS2_I(inode);  in setattr_chown()
1668 	struct gfs2_sbd *sdp = GFS2_SB(inode);  in setattr_chown()
1674 	ouid = inode->i_uid;  in setattr_chown()
1675 	ogid = inode->i_gid;  in setattr_chown()
1684 	error = get_write_access(inode);  in setattr_chown()
1713 	error = gfs2_setattr_simple(inode, attr);  in setattr_chown()
1728 	put_write_access(inode);  in setattr_chown()
1745 	struct inode *inode = d_inode(dentry);  in gfs2_setattr()  local
1746 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_setattr()
1759 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))  in gfs2_setattr()
1762 	error = inode_change_ok(inode, attr);  in gfs2_setattr()
1767 		error = gfs2_setattr_size(inode, attr->ia_size);  in gfs2_setattr()
1769 		error = setattr_chown(inode, attr);  in gfs2_setattr()
1771 		error = gfs2_setattr_simple(inode, attr);  in gfs2_setattr()
1773 			error = posix_acl_chmod(inode, inode->i_mode);  in gfs2_setattr()
1778 		mark_inode_dirty(inode);  in gfs2_setattr()
1801 	struct inode *inode = d_inode(dentry);  in gfs2_getattr()  local
1802 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_getattr()
1814 	generic_fillattr(inode, stat);  in gfs2_getattr()
1824 	struct inode *inode = d_inode(dentry);  in gfs2_setxattr()  local
1825 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_setxattr()
1844 	struct inode *inode = d_inode(dentry);  in gfs2_getxattr()  local
1845 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_getxattr()
1865 	struct inode *inode = d_inode(dentry);  in gfs2_removexattr()  local
1866 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_removexattr()
1882 static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,  in gfs2_fiemap()  argument
1885 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_fiemap()
1893 	mutex_lock(&inode->i_mutex);  in gfs2_fiemap()
1900 		u64 phys = ip->i_no_addr << inode->i_blkbits;  in gfs2_fiemap()
1901 		u64 size = i_size_read(inode);  in gfs2_fiemap()
1914 		ret = __generic_block_fiemap(inode, fieinfo, start, len,  in gfs2_fiemap()
1920 	mutex_unlock(&inode->i_mutex);  in gfs2_fiemap()