58 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_should_use_dio()  local
59 	u32 dio_align = ext4_dio_alignment(inode);  in ext4_should_use_dio()
73 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_dio_read_iter()  local
76 		if (!inode_trylock_shared(inode))  in ext4_dio_read_iter()
79 		inode_lock_shared(inode);  in ext4_dio_read_iter()
83 		inode_unlock_shared(inode);  in ext4_dio_read_iter()
96 	inode_unlock_shared(inode);  in ext4_dio_read_iter()
105 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_dax_read_iter()  local
109 		if (!inode_trylock_shared(inode))  in ext4_dax_read_iter()
112 		inode_lock_shared(inode);  in ext4_dax_read_iter()
118 	if (!IS_DAX(inode)) {  in ext4_dax_read_iter()
119 		inode_unlock_shared(inode);  in ext4_dax_read_iter()
124 	inode_unlock_shared(inode);  in ext4_dax_read_iter()
133 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_file_read_iter()  local
135 	if (unlikely(ext4_forced_shutdown(inode->i_sb)))  in ext4_file_read_iter()
142 	if (IS_DAX(inode))  in ext4_file_read_iter()
155 	struct inode *inode = file_inode(in);  in ext4_file_splice_read()  local
157 	if (unlikely(ext4_forced_shutdown(inode->i_sb)))  in ext4_file_splice_read()
167 static int ext4_release_file(struct inode *inode, struct file *filp)  in ext4_release_file()  argument
169 	if (ext4_test_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE)) {  in ext4_release_file()
170 		ext4_alloc_da_blocks(inode);  in ext4_release_file()
171 		ext4_clear_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE);  in ext4_release_file()
175 			(atomic_read(&inode->i_writecount) == 1) &&  in ext4_release_file()
176 			!EXT4_I(inode)->i_reserved_data_blocks) {  in ext4_release_file()
177 		down_write(&EXT4_I(inode)->i_data_sem);  in ext4_release_file()
178 		ext4_discard_preallocations(inode);  in ext4_release_file()
179 		up_write(&EXT4_I(inode)->i_data_sem);  in ext4_release_file()
181 	if (is_dx(inode) && filp->private_data)  in ext4_release_file()
197 ext4_unaligned_io(struct inode *inode, struct iov_iter *from, loff_t pos)  in ext4_unaligned_io()  argument
199 	struct super_block *sb = inode->i_sb;  in ext4_unaligned_io()
209 ext4_extending_io(struct inode *inode, loff_t offset, size_t len)  in ext4_extending_io()  argument
211 	if (offset + len > i_size_read(inode) ||  in ext4_extending_io()
212 	    offset + len > EXT4_I(inode)->i_disksize)  in ext4_extending_io()
218 static bool ext4_overwrite_io(struct inode *inode,  in ext4_overwrite_io()  argument
222 	unsigned int blkbits = inode->i_blkbits;  in ext4_overwrite_io()
225 	if (pos + len > i_size_read(inode))  in ext4_overwrite_io()
232 	err = ext4_map_blocks(NULL, inode, &map, 0);  in ext4_overwrite_io()
247 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_generic_write_checks()  local
250 	if (unlikely(IS_IMMUTABLE(inode)))  in ext4_generic_write_checks()
261 	if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {  in ext4_generic_write_checks()
262 		struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);  in ext4_generic_write_checks()
290 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_buffered_write_iter()  local
295 	inode_lock(inode);  in ext4_buffered_write_iter()
303 	inode_unlock(inode);  in ext4_buffered_write_iter()
309 static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset,  in ext4_handle_inode_extension()  argument
314 	lockdep_assert_held_write(&inode->i_rwsem);  in ext4_handle_inode_extension()
315 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_handle_inode_extension()
319 	if (ext4_update_inode_size(inode, offset + written)) {  in ext4_handle_inode_extension()
320 		int ret = ext4_mark_inode_dirty(handle, inode);  in ext4_handle_inode_extension()
327 	if ((written == count) && inode->i_nlink)  in ext4_handle_inode_extension()
328 		ext4_orphan_del(handle, inode);  in ext4_handle_inode_extension()
338 static void ext4_inode_extension_cleanup(struct inode *inode, bool need_trunc)  in ext4_inode_extension_cleanup()  argument
340 	lockdep_assert_held_write(&inode->i_rwsem);  in ext4_inode_extension_cleanup()
342 		ext4_truncate_failed_write(inode);  in ext4_inode_extension_cleanup()
348 		if (inode->i_nlink)  in ext4_inode_extension_cleanup()
349 			ext4_orphan_del(NULL, inode);  in ext4_inode_extension_cleanup()
358 	if (ext4_inode_orphan_tracked(inode) && inode->i_nlink) {  in ext4_inode_extension_cleanup()
359 		handle_t *handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_inode_extension_cleanup()
367 			ext4_orphan_del(NULL, inode);  in ext4_inode_extension_cleanup()
370 		ext4_orphan_del(handle, inode);  in ext4_inode_extension_cleanup()
379 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_dio_write_end_io()  local
384 		error = ext4_convert_unwritten_extents_atomic(NULL, inode, pos,  in ext4_dio_write_end_io()
387 		error = ext4_convert_unwritten_extents(NULL, inode, pos, size);  in ext4_dio_write_end_io()
399 	if (pos + size <= READ_ONCE(EXT4_I(inode)->i_disksize) &&  in ext4_dio_write_end_io()
400 	    pos + size <= i_size_read(inode))  in ext4_dio_write_end_io()
402 	error = ext4_handle_inode_extension(inode, pos, size, size);  in ext4_dio_write_end_io()
431 	struct inode *inode = file_inode(file);  in ext4_dio_write_checks()  local
445 	unaligned_io = ext4_unaligned_io(inode, from, offset);  in ext4_dio_write_checks()
446 	*extend = ext4_extending_io(inode, offset, count);  in ext4_dio_write_checks()
447 	overwrite = ext4_overwrite_io(inode, offset, count, &unwritten);  in ext4_dio_write_checks()
461 	    ((!IS_NOSEC(inode) || *extend || !overwrite ||  in ext4_dio_write_checks()
467 		inode_unlock_shared(inode);  in ext4_dio_write_checks()
469 		inode_lock(inode);  in ext4_dio_write_checks()
486 			inode_dio_wait(inode);  in ext4_dio_write_checks()
497 		inode_unlock_shared(inode);  in ext4_dio_write_checks()
499 		inode_unlock(inode);  in ext4_dio_write_checks()
507 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_dio_write_iter()  local
519 	if (offset + count > i_size_read(inode))  in ext4_dio_write_iter()
524 			if (!inode_trylock_shared(inode))  in ext4_dio_write_iter()
527 			if (!inode_trylock(inode))  in ext4_dio_write_iter()
532 			inode_lock_shared(inode);  in ext4_dio_write_iter()
534 			inode_lock(inode);  in ext4_dio_write_iter()
540 			inode_unlock_shared(inode);  in ext4_dio_write_iter()
542 			inode_unlock(inode);  in ext4_dio_write_iter()
553 	ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);  in ext4_dio_write_iter()
564 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_dio_write_iter()
570 		ret = ext4_orphan_add(handle, inode);  in ext4_dio_write_iter()
588 		ext4_inode_extension_cleanup(inode, ret < 0);  in ext4_dio_write_iter()
593 		inode_unlock_shared(inode);  in ext4_dio_write_iter()
595 		inode_unlock(inode);  in ext4_dio_write_iter()
642 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_dax_write_iter()  local
645 		if (!inode_trylock(inode))  in ext4_dax_write_iter()
648 		inode_lock(inode);  in ext4_dax_write_iter()
658 	if (offset + count > EXT4_I(inode)->i_disksize) {  in ext4_dax_write_iter()
659 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_dax_write_iter()
665 		ret = ext4_orphan_add(handle, inode);  in ext4_dax_write_iter()
678 		ret = ext4_handle_inode_extension(inode, offset, ret, count);  in ext4_dax_write_iter()
679 		ext4_inode_extension_cleanup(inode, ret < (ssize_t)count);  in ext4_dax_write_iter()
682 	inode_unlock(inode);  in ext4_dax_write_iter()
693 	struct inode *inode = file_inode(iocb->ki_filp);  in ext4_file_write_iter()  local
695 	ret = ext4_emergency_state(inode->i_sb);  in ext4_file_write_iter()
700 	if (IS_DAX(inode))  in ext4_file_write_iter()
707 		if (len < EXT4_SB(inode->i_sb)->s_awu_min ||  in ext4_file_write_iter()
708 		    len > EXT4_SB(inode->i_sb)->s_awu_max)  in ext4_file_write_iter()
729 	struct inode *inode = file_inode(vmf->vma->vm_file);  in ext4_dax_huge_fault()  local
730 	struct super_block *sb = inode->i_sb;  in ext4_dax_huge_fault()
807 	struct inode *inode = file->f_mapping->host;  in ext4_file_mmap_prepare()  local
808 	struct dax_device *dax_dev = EXT4_SB(inode->i_sb)->s_daxdev;  in ext4_file_mmap_prepare()
811 		ret = ext4_emergency_state(inode->i_sb);  in ext4_file_mmap_prepare()
813 		ret = ext4_forced_shutdown(inode->i_sb) ? -EIO : 0;  in ext4_file_mmap_prepare()
885 static int ext4_file_open(struct inode *inode, struct file *filp)  in ext4_file_open()  argument
890 		ret = ext4_emergency_state(inode->i_sb);  in ext4_file_open()
892 		ret = ext4_forced_shutdown(inode->i_sb) ? -EIO : 0;  in ext4_file_open()
896 	ret = ext4_sample_last_mounted(inode->i_sb, filp->f_path.mnt);  in ext4_file_open()
900 	ret = fscrypt_file_open(inode, filp);  in ext4_file_open()
904 	ret = fsverity_file_open(inode, filp);  in ext4_file_open()
913 		ret = ext4_inode_attach_jinode(inode);  in ext4_file_open()
918 	if (ext4_inode_can_atomic_write(inode))  in ext4_file_open()
922 	return dquot_file_open(inode, filp);  in ext4_file_open()
932 	struct inode *inode = file->f_mapping->host;  in ext4_llseek()  local
933 	loff_t maxbytes = ext4_get_maxbytes(inode);  in ext4_llseek()
938 						maxbytes, i_size_read(inode));  in ext4_llseek()
940 		inode_lock_shared(inode);  in ext4_llseek()
941 		offset = iomap_seek_hole(inode, offset,  in ext4_llseek()
943 		inode_unlock_shared(inode);  in ext4_llseek()
946 		inode_lock_shared(inode);  in ext4_llseek()
947 		offset = iomap_seek_data(inode, offset,  in ext4_llseek()
949 		inode_unlock_shared(inode);  in ext4_llseek()