Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  linux/fs/minix/file.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 1991, 1992 Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *  minix regular file handling primitives
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "minix.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * We have mostly NULLs here: the current defaults are OK for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * the minix filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) const struct file_operations minix_file_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	.llseek		= generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	.read_iter	= generic_file_read_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	.write_iter	= generic_file_write_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	.mmap		= generic_file_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	.fsync		= generic_file_fsync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	.splice_read	= generic_file_splice_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static int minix_setattr(struct dentry *dentry, struct iattr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	struct inode *inode = d_inode(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	error = setattr_prepare(dentry, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	if ((attr->ia_valid & ATTR_SIZE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	    attr->ia_size != i_size_read(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		error = inode_newsize_ok(inode, attr->ia_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		truncate_setsize(inode, attr->ia_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		minix_truncate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	setattr_copy(inode, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) const struct inode_operations minix_file_inode_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	.setattr	= minix_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	.getattr	= minix_getattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };