67 static int ocfs2_init_file_private(struct inode *inode, struct file *file)  in ocfs2_init_file_private()  argument
83 static void ocfs2_free_file_private(struct inode *inode, struct file *file)  in ocfs2_free_file_private()  argument
86 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_free_file_private()
96 static int ocfs2_file_open(struct inode *inode, struct file *file)  in ocfs2_file_open()  argument
100 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_file_open()
102 	trace_ocfs2_file_open(inode, file, file->f_path.dentry,  in ocfs2_file_open()
103 			      (unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_file_open()
108 		dquot_initialize(inode);  in ocfs2_file_open()
115 	if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {  in ocfs2_file_open()
128 	status = ocfs2_init_file_private(inode, file);  in ocfs2_file_open()
143 static int ocfs2_file_release(struct inode *inode, struct file *file)  in ocfs2_file_release()  argument
145 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_file_release()
151 	trace_ocfs2_file_release(inode, file, file->f_path.dentry,  in ocfs2_file_release()
158 	ocfs2_free_file_private(inode, file);  in ocfs2_file_release()
163 static int ocfs2_dir_open(struct inode *inode, struct file *file)  in ocfs2_dir_open()  argument
165 	return ocfs2_init_file_private(inode, file);  in ocfs2_dir_open()
168 static int ocfs2_dir_release(struct inode *inode, struct file *file)  in ocfs2_dir_release()  argument
170 	ocfs2_free_file_private(inode, file);  in ocfs2_dir_release()
178 	struct inode *inode = file->f_mapping->host;  in ocfs2_sync_file()  local
179 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_sync_file()
180 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_sync_file()
186 	trace_ocfs2_sync_file(inode, file, file->f_path.dentry,  in ocfs2_sync_file()
187 			      OCFS2_I(inode)->ip_blkno,  in ocfs2_sync_file()
195 	err = filemap_write_and_wait_range(inode->i_mapping, start, end);  in ocfs2_sync_file()
205 		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);  in ocfs2_sync_file()
216 int ocfs2_should_update_atime(struct inode *inode,  in ocfs2_should_update_atime()  argument
220 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_should_update_atime()
225 	if ((inode->i_flags & S_NOATIME) ||  in ocfs2_should_update_atime()
226 	    ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode)))  in ocfs2_should_update_atime()
241 	    ((vfsmnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))  in ocfs2_should_update_atime()
245 		if ((timespec_compare(&inode->i_atime, &inode->i_mtime) <= 0) ||  in ocfs2_should_update_atime()
246 		    (timespec_compare(&inode->i_atime, &inode->i_ctime) <= 0))  in ocfs2_should_update_atime()
253 	if ((now.tv_sec - inode->i_atime.tv_sec <= osb->s_atime_quantum))  in ocfs2_should_update_atime()
259 int ocfs2_update_inode_atime(struct inode *inode,  in ocfs2_update_inode_atime()  argument
263 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_update_inode_atime()
274 	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh,  in ocfs2_update_inode_atime()
286 	inode->i_atime = CURRENT_TIME;  in ocfs2_update_inode_atime()
287 	di->i_atime = cpu_to_le64(inode->i_atime.tv_sec);  in ocfs2_update_inode_atime()
288 	di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);  in ocfs2_update_inode_atime()
289 	ocfs2_update_inode_fsync_trans(handle, inode, 0);  in ocfs2_update_inode_atime()
293 	ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);  in ocfs2_update_inode_atime()
299 				struct inode *inode,  in ocfs2_set_inode_size()  argument
305 	i_size_write(inode, new_i_size);  in ocfs2_set_inode_size()
306 	inode->i_blocks = ocfs2_inode_sector_count(inode);  in ocfs2_set_inode_size()
307 	inode->i_ctime = inode->i_mtime = CURRENT_TIME;  in ocfs2_set_inode_size()
309 	status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);  in ocfs2_set_inode_size()
319 int ocfs2_simple_size_update(struct inode *inode,  in ocfs2_simple_size_update()  argument
324 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_simple_size_update()
334 	ret = ocfs2_set_inode_size(handle, inode, di_bh,  in ocfs2_simple_size_update()
339 	ocfs2_update_inode_fsync_trans(handle, inode, 0);  in ocfs2_simple_size_update()
345 static int ocfs2_cow_file_pos(struct inode *inode,  in ocfs2_cow_file_pos()  argument
350 	u32 phys, cpos = offset >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;  in ocfs2_cow_file_pos()
359 	if ((offset & (OCFS2_SB(inode->i_sb)->s_clustersize - 1)) == 0)  in ocfs2_cow_file_pos()
362 	status = ocfs2_get_clusters(inode, cpos, &phys,  in ocfs2_cow_file_pos()
372 	return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1);  in ocfs2_cow_file_pos()
379 				     struct inode *inode,  in ocfs2_orphan_for_truncate()  argument
393 	status = ocfs2_cow_file_pos(inode, fe_bh, new_i_size);  in ocfs2_orphan_for_truncate()
409 	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh,  in ocfs2_orphan_for_truncate()
419 	cluster_bytes = ocfs2_align_bytes_to_clusters(inode->i_sb, new_i_size);  in ocfs2_orphan_for_truncate()
420 	status = ocfs2_zero_range_for_truncate(inode, handle, new_i_size,  in ocfs2_orphan_for_truncate()
427 	i_size_write(inode, new_i_size);  in ocfs2_orphan_for_truncate()
428 	inode->i_ctime = inode->i_mtime = CURRENT_TIME;  in ocfs2_orphan_for_truncate()
432 	di->i_ctime = di->i_mtime = cpu_to_le64(inode->i_ctime.tv_sec);  in ocfs2_orphan_for_truncate()
433 	di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);  in ocfs2_orphan_for_truncate()
434 	ocfs2_update_inode_fsync_trans(handle, inode, 0);  in ocfs2_orphan_for_truncate()
444 int ocfs2_truncate_file(struct inode *inode,  in ocfs2_truncate_file()  argument
450 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_truncate_file()
456 	trace_ocfs2_truncate_file((unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_truncate_file()
460 	mlog_bug_on_msg(le64_to_cpu(fe->i_size) != i_size_read(inode),  in ocfs2_truncate_file()
463 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_truncate_file()
464 			i_size_read(inode),  in ocfs2_truncate_file()
477 	down_write(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_truncate_file()
480 			   &OCFS2_I(inode)->ip_la_data_resv);  in ocfs2_truncate_file()
489 	unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1);  in ocfs2_truncate_file()
490 	truncate_inode_pages(inode->i_mapping, new_i_size);  in ocfs2_truncate_file()
492 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_truncate_file()
493 		status = ocfs2_truncate_inline(inode, di_bh, new_i_size,  in ocfs2_truncate_file()
494 					       i_size_read(inode), 1);  in ocfs2_truncate_file()
505 	status = ocfs2_orphan_for_truncate(osb, inode, di_bh, new_i_size);  in ocfs2_truncate_file()
511 	status = ocfs2_commit_truncate(osb, inode, di_bh);  in ocfs2_truncate_file()
519 	up_write(&OCFS2_I(inode)->ip_alloc_sem);  in ocfs2_truncate_file()
522 	if (!status && OCFS2_I(inode)->ip_clusters == 0)  in ocfs2_truncate_file()
523 		status = ocfs2_try_remove_refcount_tree(inode, di_bh);  in ocfs2_truncate_file()
539 			 struct inode *inode,  in ocfs2_add_inode_data()  argument
552 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), fe_bh);  in ocfs2_add_inode_data()
560 static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,  in __ocfs2_extend_allocation()  argument
573 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in __ocfs2_extend_allocation()
583 	status = ocfs2_read_inode_block(inode, &bh);  in __ocfs2_extend_allocation()
591 	BUG_ON(le32_to_cpu(fe->i_clusters) != OCFS2_I(inode)->ip_clusters);  in __ocfs2_extend_allocation()
593 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), bh);  in __ocfs2_extend_allocation()
594 	status = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,  in __ocfs2_extend_allocation()
612 		(unsigned long long)OCFS2_I(inode)->ip_blkno,  in __ocfs2_extend_allocation()
613 		(unsigned long long)i_size_read(inode),  in __ocfs2_extend_allocation()
617 	status = dquot_alloc_space_nodirty(inode,  in __ocfs2_extend_allocation()
626 	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh,  in __ocfs2_extend_allocation()
633 	prev_clusters = OCFS2_I(inode)->ip_clusters;  in __ocfs2_extend_allocation()
636 				      inode,  in __ocfs2_extend_allocation()
650 	ocfs2_update_inode_fsync_trans(handle, inode, 1);  in __ocfs2_extend_allocation()
653 	spin_lock(&OCFS2_I(inode)->ip_lock);  in __ocfs2_extend_allocation()
654 	clusters_to_add -= (OCFS2_I(inode)->ip_clusters - prev_clusters);  in __ocfs2_extend_allocation()
655 	spin_unlock(&OCFS2_I(inode)->ip_lock);  in __ocfs2_extend_allocation()
657 	dquot_free_space(inode,  in __ocfs2_extend_allocation()
680 	trace_ocfs2_extend_allocation_end(OCFS2_I(inode)->ip_blkno,  in __ocfs2_extend_allocation()
683 	     OCFS2_I(inode)->ip_clusters,  in __ocfs2_extend_allocation()
684 	     (unsigned long long)i_size_read(inode));  in __ocfs2_extend_allocation()
688 		dquot_free_space(inode,  in __ocfs2_extend_allocation()
712 int ocfs2_extend_allocation(struct inode *inode, u32 logical_start,  in ocfs2_extend_allocation()  argument
715 	return __ocfs2_extend_allocation(inode, logical_start,  in ocfs2_extend_allocation()
723 static handle_t *ocfs2_zero_start_ordered_transaction(struct inode *inode,  in ocfs2_zero_start_ordered_transaction()  argument
726 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_zero_start_ordered_transaction()
730 	if (!ocfs2_should_order_data(inode))  in ocfs2_zero_start_ordered_transaction()
740 	ret = ocfs2_jbd2_file_inode(handle, inode);  in ocfs2_zero_start_ordered_transaction()
746 	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh,  in ocfs2_zero_start_ordered_transaction()
750 	ocfs2_update_inode_fsync_trans(handle, inode, 1);  in ocfs2_zero_start_ordered_transaction()
764 static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,  in ocfs2_write_zero_page()  argument
767 	struct address_space *mapping = inode->i_mapping;  in ocfs2_write_zero_page()
777 	BUG_ON(abs_from & (inode->i_blkbits - 1));  in ocfs2_write_zero_page()
779 	handle = ocfs2_zero_start_ordered_transaction(inode, di_bh);  in ocfs2_write_zero_page()
799 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_write_zero_page()
807 		block_end = block_start + (1 << inode->i_blkbits);  in ocfs2_write_zero_page()
836 	i_size_write(inode, abs_to);  in ocfs2_write_zero_page()
837 	inode->i_blocks = ocfs2_inode_sector_count(inode);  in ocfs2_write_zero_page()
838 	di->i_size = cpu_to_le64((u64)i_size_read(inode));  in ocfs2_write_zero_page()
839 	inode->i_mtime = inode->i_ctime = CURRENT_TIME;  in ocfs2_write_zero_page()
840 	di->i_mtime = di->i_ctime = cpu_to_le64(inode->i_mtime.tv_sec);  in ocfs2_write_zero_page()
841 	di->i_ctime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);  in ocfs2_write_zero_page()
845 		ocfs2_update_inode_fsync_trans(handle, inode, 1);  in ocfs2_write_zero_page()
853 		ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);  in ocfs2_write_zero_page()
870 static int ocfs2_zero_extend_get_range(struct inode *inode,  in ocfs2_zero_extend_get_range()  argument
878 		zero_start >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;  in ocfs2_zero_extend_get_range()
879 	u32 last_cpos = ocfs2_clusters_for_bytes(inode->i_sb, zero_end);  in ocfs2_zero_extend_get_range()
884 		rc = ocfs2_get_clusters(inode, zero_cpos, &p_cpos,  in ocfs2_zero_extend_get_range()
906 		rc = ocfs2_get_clusters(inode, zero_cpos + zero_clusters,  in ocfs2_zero_extend_get_range()
924 		rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos,  in ocfs2_zero_extend_get_range()
932 	*range_start = ocfs2_clusters_to_bytes(inode->i_sb, zero_cpos);  in ocfs2_zero_extend_get_range()
933 	*range_end = ocfs2_clusters_to_bytes(inode->i_sb,  in ocfs2_zero_extend_get_range()
944 static int ocfs2_zero_extend_range(struct inode *inode, u64 range_start,  in ocfs2_zero_extend_range()  argument
952 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_zero_extend_range()
961 		rc = ocfs2_write_zero_page(inode, zero_pos, next_pos, di_bh);  in ocfs2_zero_extend_range()
978 int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,  in ocfs2_zero_extend()  argument
983 	struct super_block *sb = inode->i_sb;  in ocfs2_zero_extend()
985 	zero_start = ocfs2_align_bytes_to_blocks(sb, i_size_read(inode));  in ocfs2_zero_extend()
986 	trace_ocfs2_zero_extend((unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_zero_extend()
988 				(unsigned long long)i_size_read(inode));  in ocfs2_zero_extend()
990 		ret = ocfs2_zero_extend_get_range(inode, di_bh, zero_start,  in ocfs2_zero_extend()
1006 		ret = ocfs2_zero_extend_range(inode, range_start,  in ocfs2_zero_extend()
1018 int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,  in ocfs2_extend_no_holes()  argument
1023 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extend_no_holes()
1032 	clusters_to_add = ocfs2_clusters_for_bytes(inode->i_sb, new_i_size);  in ocfs2_extend_no_holes()
1039 		ret = __ocfs2_extend_allocation(inode, oi->ip_clusters,  in ocfs2_extend_no_holes()
1052 	ret = ocfs2_zero_extend(inode, di_bh, zero_to);  in ocfs2_extend_no_holes()
1060 static int ocfs2_extend_file(struct inode *inode,  in ocfs2_extend_file()  argument
1065 	struct ocfs2_inode_info *oi = OCFS2_I(inode);  in ocfs2_extend_file()
1073 	if (i_size_read(inode) == new_i_size)  in ocfs2_extend_file()
1075 	BUG_ON(new_i_size < i_size_read(inode));  in ocfs2_extend_file()
1096 		ret = ocfs2_convert_inline_data_to_extents(inode, di_bh);  in ocfs2_extend_file()
1104 	if (ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)))  in ocfs2_extend_file()
1105 		ret = ocfs2_zero_extend(inode, di_bh, new_i_size);  in ocfs2_extend_file()
1107 		ret = ocfs2_extend_no_holes(inode, di_bh, new_i_size,  in ocfs2_extend_file()
1118 	ret = ocfs2_simple_size_update(inode, di_bh, new_i_size);  in ocfs2_extend_file()
1129 	struct inode *inode = d_inode(dentry);  in ocfs2_setattr()  local
1130 	struct super_block *sb = inode->i_sb;  in ocfs2_setattr()
1137 	trace_ocfs2_setattr(inode, dentry,  in ocfs2_setattr()
1138 			    (unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_setattr()
1145 	if (S_ISLNK(inode->i_mode))  in ocfs2_setattr()
1153 	status = inode_change_ok(inode, attr);  in ocfs2_setattr()
1157 	if (is_quota_modification(inode, attr))  in ocfs2_setattr()
1158 		dquot_initialize(inode);  in ocfs2_setattr()
1159 	size_change = S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE;  in ocfs2_setattr()
1161 		status = ocfs2_rw_lock(inode, 1);  in ocfs2_setattr()
1168 	status = ocfs2_inode_lock(inode, &bh, 1);  in ocfs2_setattr()
1176 		status = inode_newsize_ok(inode, attr->ia_size);  in ocfs2_setattr()
1180 		inode_dio_wait(inode);  in ocfs2_setattr()
1182 		if (i_size_read(inode) >= attr->ia_size) {  in ocfs2_setattr()
1183 			if (ocfs2_should_order_data(inode)) {  in ocfs2_setattr()
1184 				status = ocfs2_begin_ordered_truncate(inode,  in ocfs2_setattr()
1189 			status = ocfs2_truncate_file(inode, bh, attr->ia_size);  in ocfs2_setattr()
1191 			status = ocfs2_extend_file(inode, bh, attr->ia_size);  in ocfs2_setattr()
1200 	if ((attr->ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||  in ocfs2_setattr()
1201 	    (attr->ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {  in ocfs2_setattr()
1207 		if (attr->ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)  in ocfs2_setattr()
1216 		if (attr->ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid)  in ocfs2_setattr()
1232 		status = __dquot_transfer(inode, transfer_to);  in ocfs2_setattr()
1244 	setattr_copy(inode, attr);  in ocfs2_setattr()
1245 	mark_inode_dirty(inode);  in ocfs2_setattr()
1247 	status = ocfs2_mark_inode_dirty(handle, inode, bh);  in ocfs2_setattr()
1254 	ocfs2_inode_unlock(inode, 1);  in ocfs2_setattr()
1257 		ocfs2_rw_unlock(inode, 1);  in ocfs2_setattr()
1265 		status = ocfs2_acl_chmod(inode, bh);  in ocfs2_setattr()
1278 	struct inode *inode = d_inode(dentry);  in ocfs2_getattr()  local
1290 	generic_fillattr(inode, stat);  in ocfs2_getattr()
1299 int ocfs2_permission(struct inode *inode, int mask)  in ocfs2_permission()  argument
1306 	ret = ocfs2_inode_lock(inode, NULL, 0);  in ocfs2_permission()
1313 	ret = generic_permission(inode, mask);  in ocfs2_permission()
1315 	ocfs2_inode_unlock(inode, 0);  in ocfs2_permission()
1320 static int __ocfs2_write_remove_suid(struct inode *inode,  in __ocfs2_write_remove_suid()  argument
1325 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in __ocfs2_write_remove_suid()
1329 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in __ocfs2_write_remove_suid()
1330 			inode->i_mode);  in __ocfs2_write_remove_suid()
1339 	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh,  in __ocfs2_write_remove_suid()
1346 	inode->i_mode &= ~S_ISUID;  in __ocfs2_write_remove_suid()
1347 	if ((inode->i_mode & S_ISGID) && (inode->i_mode & S_IXGRP))  in __ocfs2_write_remove_suid()
1348 		inode->i_mode &= ~S_ISGID;  in __ocfs2_write_remove_suid()
1351 	di->i_mode = cpu_to_le16(inode->i_mode);  in __ocfs2_write_remove_suid()
1352 	ocfs2_update_inode_fsync_trans(handle, inode, 0);  in __ocfs2_write_remove_suid()
1366 static int ocfs2_check_range_for_holes(struct inode *inode, loff_t pos,  in ocfs2_check_range_for_holes()  argument
1372 	struct super_block *sb = inode->i_sb;  in ocfs2_check_range_for_holes()
1378 		ret = ocfs2_get_clusters(inode, cpos, &phys_cpos, &extent_len,  in ocfs2_check_range_for_holes()
1400 static int ocfs2_write_remove_suid(struct inode *inode)  in ocfs2_write_remove_suid()  argument
1405 	ret = ocfs2_read_inode_block(inode, &bh);  in ocfs2_write_remove_suid()
1411 	ret =  __ocfs2_write_remove_suid(inode, bh);  in ocfs2_write_remove_suid()
1422 static int ocfs2_allocate_unwritten_extents(struct inode *inode,  in ocfs2_allocate_unwritten_extents()  argument
1430 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_allocate_unwritten_extents()
1431 		ret = ocfs2_read_inode_block(inode, &di_bh);  in ocfs2_allocate_unwritten_extents()
1444 		ret = ocfs2_convert_inline_data_to_extents(inode, di_bh);  in ocfs2_allocate_unwritten_extents()
1454 	cpos = start >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;  in ocfs2_allocate_unwritten_extents()
1455 	clusters = ocfs2_clusters_for_bytes(inode->i_sb, start + len);  in ocfs2_allocate_unwritten_extents()
1459 		ret = ocfs2_get_clusters(inode, cpos, &phys_cpos,  in ocfs2_allocate_unwritten_extents()
1481 		ret = __ocfs2_extend_allocation(inode, cpos, alloc_size, 1);  in ocfs2_allocate_unwritten_extents()
1504 static void ocfs2_truncate_cluster_pages(struct inode *inode, u64 byte_start,  in ocfs2_truncate_cluster_pages()  argument
1507 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_truncate_cluster_pages()
1509 	struct address_space *mapping = inode->i_mapping;  in ocfs2_truncate_cluster_pages()
1511 	start = (loff_t)ocfs2_align_bytes_to_clusters(inode->i_sb, byte_start);  in ocfs2_truncate_cluster_pages()
1521 static int ocfs2_zero_partial_clusters(struct inode *inode,  in ocfs2_zero_partial_clusters()  argument
1526 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_zero_partial_clusters()
1538 		(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_zero_partial_clusters()
1566 	ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend);  in ocfs2_zero_partial_clusters()
1581 		ret = ocfs2_zero_range_for_truncate(inode, handle, start, end);  in ocfs2_zero_partial_clusters()
1585 	ocfs2_update_inode_fsync_trans(handle, inode, 1);  in ocfs2_zero_partial_clusters()
1616 static void ocfs2_calc_trunc_pos(struct inode *inode,  in ocfs2_calc_trunc_pos()  argument
1655 				ocfs2_clusters_to_blocks(inode->i_sb, coff);  in ocfs2_calc_trunc_pos()
1672 static int ocfs2_remove_inode_range(struct inode *inode,  in ocfs2_remove_inode_range()  argument
1679 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_remove_inode_range()
1681 	struct address_space *mapping = inode->i_mapping;  in ocfs2_remove_inode_range()
1689 	ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh);  in ocfs2_remove_inode_range()
1693 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_remove_inode_range()
1700 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_remove_inode_range()
1701 		ret = ocfs2_truncate_inline(inode, di_bh, byte_start,  in ocfs2_remove_inode_range()
1724 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) {  in ocfs2_remove_inode_range()
1726 		ret = ocfs2_cow_file_pos(inode, di_bh, byte_start);  in ocfs2_remove_inode_range()
1732 		ret = ocfs2_cow_file_pos(inode, di_bh, byte_start + byte_len);  in ocfs2_remove_inode_range()
1743 	ret = ocfs2_zero_partial_clusters(inode, byte_start, byte_len);  in ocfs2_remove_inode_range()
1758 		ret = ocfs2_find_path(INODE_CACHE(inode), path,  in ocfs2_remove_inode_range()
1775 			ret = ocfs2_find_cpos_for_left_leaf(inode->i_sb,  in ocfs2_remove_inode_range()
1803 		ocfs2_calc_trunc_pos(inode, el, rec, trunc_start, &trunc_cpos,  in ocfs2_remove_inode_range()
1809 		phys_cpos = ocfs2_blocks_to_clusters(inode->i_sb, blkno);  in ocfs2_remove_inode_range()
1811 		ret = ocfs2_remove_btree_range(inode, &et, trunc_cpos,  in ocfs2_remove_inode_range()
1824 	ocfs2_truncate_cluster_pages(inode, byte_start, byte_len);  in ocfs2_remove_inode_range()
1837 static int __ocfs2_change_file_space(struct file *file, struct inode *inode,  in __ocfs2_change_file_space()  argument
1845 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in __ocfs2_change_file_space()
1848 	unsigned long long max_off = inode->i_sb->s_maxbytes;  in __ocfs2_change_file_space()
1853 	mutex_lock(&inode->i_mutex);  in __ocfs2_change_file_space()
1858 	ret = ocfs2_rw_lock(inode, 1);  in __ocfs2_change_file_space()
1864 	ret = ocfs2_inode_lock(inode, &di_bh, 1);  in __ocfs2_change_file_space()
1870 	if (inode->i_flags & (S_IMMUTABLE|S_APPEND)) {  in __ocfs2_change_file_space()
1882 		sr->l_start += i_size_read(inode);  in __ocfs2_change_file_space()
1910 		ret = __ocfs2_write_remove_suid(inode, di_bh);  in __ocfs2_change_file_space()
1917 	down_write(&OCFS2_I(inode)->ip_alloc_sem);  in __ocfs2_change_file_space()
1925 		ret = ocfs2_allocate_unwritten_extents(inode, sr->l_start,  in __ocfs2_change_file_space()
1930 		ret = ocfs2_remove_inode_range(inode, di_bh, sr->l_start,  in __ocfs2_change_file_space()
1936 	up_write(&OCFS2_I(inode)->ip_alloc_sem);  in __ocfs2_change_file_space()
1952 	if (change_size && i_size_read(inode) < size)  in __ocfs2_change_file_space()
1953 		i_size_write(inode, size);  in __ocfs2_change_file_space()
1955 	inode->i_ctime = inode->i_mtime = CURRENT_TIME;  in __ocfs2_change_file_space()
1956 	ret = ocfs2_mark_inode_dirty(handle, inode, di_bh);  in __ocfs2_change_file_space()
1967 	ocfs2_inode_unlock(inode, 1);  in __ocfs2_change_file_space()
1969 	ocfs2_rw_unlock(inode, 1);  in __ocfs2_change_file_space()
1972 	mutex_unlock(&inode->i_mutex);  in __ocfs2_change_file_space()
1979 	struct inode *inode = file_inode(file);  in ocfs2_change_file_space()  local
1980 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_change_file_space()
1990 	if (!S_ISREG(inode->i_mode))  in ocfs2_change_file_space()
1999 	ret = __ocfs2_change_file_space(file, inode, file->f_pos, cmd, sr, 0);  in ocfs2_change_file_space()
2007 	struct inode *inode = file_inode(file);  in ocfs2_fallocate()  local
2008 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_fallocate()
2028 	return __ocfs2_change_file_space(NULL, inode, offset, cmd, &sr,  in ocfs2_fallocate()
2032 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,  in ocfs2_check_range_for_refcount()  argument
2038 	struct super_block *sb = inode->i_sb;  in ocfs2_check_range_for_refcount()
2040 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)) ||  in ocfs2_check_range_for_refcount()
2041 	    !(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) ||  in ocfs2_check_range_for_refcount()
2042 	    OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)  in ocfs2_check_range_for_refcount()
2049 		ret = ocfs2_get_clusters(inode, cpos, &phys_cpos, &extent_len,  in ocfs2_check_range_for_refcount()
2071 static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos)  in ocfs2_is_io_unaligned()  argument
2073 	int blockmask = inode->i_sb->s_blocksize - 1;  in ocfs2_is_io_unaligned()
2081 static int ocfs2_prepare_inode_for_refcount(struct inode *inode,  in ocfs2_prepare_inode_for_refcount()  argument
2088 	u32 cpos = pos >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;  in ocfs2_prepare_inode_for_refcount()
2090 		ocfs2_clusters_for_bytes(inode->i_sb, pos + count) - cpos;  in ocfs2_prepare_inode_for_refcount()
2092 	ret = ocfs2_inode_lock(inode, &di_bh, 1);  in ocfs2_prepare_inode_for_refcount()
2100 	ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);  in ocfs2_prepare_inode_for_refcount()
2117 	struct inode *inode = d_inode(dentry);  in ocfs2_prepare_inode_for_write()  local
2119 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_prepare_inode_for_write()
2128 		ret = ocfs2_inode_lock(inode, NULL, meta_level);  in ocfs2_prepare_inode_for_write()
2146 				ocfs2_inode_unlock(inode, meta_level);  in ocfs2_prepare_inode_for_write()
2151 			ret = ocfs2_write_remove_suid(inode);  in ocfs2_prepare_inode_for_write()
2160 		ret = ocfs2_check_range_for_refcount(inode, pos, count);  in ocfs2_prepare_inode_for_write()
2162 			ocfs2_inode_unlock(inode, meta_level);  in ocfs2_prepare_inode_for_write()
2165 			ret = ocfs2_prepare_inode_for_refcount(inode,  in ocfs2_prepare_inode_for_write()
2192 		if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {  in ocfs2_prepare_inode_for_write()
2203 		if (end > i_size_read(inode) && !full_coherency) {  in ocfs2_prepare_inode_for_write()
2211 		if (end > i_size_read(inode) &&  in ocfs2_prepare_inode_for_write()
2223 		ret = ocfs2_check_range_for_holes(inode, pos, count);  in ocfs2_prepare_inode_for_write()
2239 	trace_ocfs2_prepare_inode_for_write(OCFS2_I(inode)->ip_blkno,  in ocfs2_prepare_inode_for_write()
2244 		ocfs2_inode_unlock(inode, meta_level);  in ocfs2_prepare_inode_for_write()
2261 	struct inode *inode = file_inode(file);  in ocfs2_file_write_iter()  local
2262 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);  in ocfs2_file_write_iter()
2268 	trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry,  in ocfs2_file_write_iter()
2269 		(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_file_write_iter()
2280 	mutex_lock(&inode->i_mutex);  in ocfs2_file_write_iter()
2298 	ret = ocfs2_rw_lock(inode, rw_level);  in ocfs2_file_write_iter()
2314 		ret = ocfs2_inode_lock(inode, NULL, 1);  in ocfs2_file_write_iter()
2320 		ocfs2_inode_unlock(inode, 1);  in ocfs2_file_write_iter()
2341 		unaligned_dio = ocfs2_is_io_unaligned(inode, count, iocb->ki_pos);  in ocfs2_file_write_iter()
2348 		ocfs2_rw_unlock(inode, rw_level);  in ocfs2_file_write_iter()
2365 		mutex_lock(&OCFS2_I(inode)->ip_unaligned_aio);  in ocfs2_file_write_iter()
2374 	old_size = i_size_read(inode);  in ocfs2_file_write_iter()
2375 	old_clusters = OCFS2_I(inode)->ip_clusters;  in ocfs2_file_write_iter()
2388 	    IS_SYNC(inode) || dropped_dio) {  in ocfs2_file_write_iter()
2425 		mutex_unlock(&OCFS2_I(inode)->ip_unaligned_aio);  in ocfs2_file_write_iter()
2430 		ocfs2_rw_unlock(inode, rw_level);  in ocfs2_file_write_iter()
2436 	mutex_unlock(&inode->i_mutex);  in ocfs2_file_write_iter()
2450 	struct inode *inode = file_inode(in);  in ocfs2_file_splice_read()  local
2452 	trace_ocfs2_file_splice_read(inode, in, in->f_path.dentry,  in ocfs2_file_splice_read()
2453 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_file_splice_read()
2460 	ret = ocfs2_inode_lock_atime(inode, in->f_path.mnt, &lock_level);  in ocfs2_file_splice_read()
2465 	ocfs2_inode_unlock(inode, lock_level);  in ocfs2_file_splice_read()
2478 	struct inode *inode = file_inode(filp);  in ocfs2_file_read_iter()  local
2480 	trace_ocfs2_file_aio_read(inode, filp, filp->f_path.dentry,  in ocfs2_file_read_iter()
2481 			(unsigned long long)OCFS2_I(inode)->ip_blkno,  in ocfs2_file_read_iter()
2487 	if (!inode) {  in ocfs2_file_read_iter()
2503 		ret = ocfs2_rw_lock(inode, 0);  in ocfs2_file_read_iter()
2522 	ret = ocfs2_inode_lock_atime(inode, filp->f_path.mnt, &lock_level);  in ocfs2_file_read_iter()
2527 	ocfs2_inode_unlock(inode, lock_level);  in ocfs2_file_read_iter()
2546 		ocfs2_rw_unlock(inode, rw_level);  in ocfs2_file_read_iter()
2554 	struct inode *inode = file->f_mapping->host;  in ocfs2_file_llseek()  local
2557 	mutex_lock(&inode->i_mutex);  in ocfs2_file_llseek()
2566 		ret = ocfs2_inode_lock(inode, NULL, 0);  in ocfs2_file_llseek()
2571 		offset += i_size_read(inode);  in ocfs2_file_llseek()
2572 		ocfs2_inode_unlock(inode, 0);  in ocfs2_file_llseek()
2592 	offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);  in ocfs2_file_llseek()
2595 	mutex_unlock(&inode->i_mutex);  in ocfs2_file_llseek()