Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* RomFS internal definitions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright © 2007 Red Hat, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Written by David Howells (dhowells@redhat.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/romfs_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct romfs_inode_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	struct inode	vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	unsigned long	i_metasize;	/* size of non-data area */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	unsigned long	i_dataoffset;	/* from the start of fs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static inline size_t romfs_maxsize(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	return (size_t) (unsigned long) sb->s_fs_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static inline struct romfs_inode_info *ROMFS_I(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	return container_of(inode, struct romfs_inode_info, vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * mmap-nommu.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #if !defined(CONFIG_MMU) && defined(CONFIG_ROMFS_ON_MTD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern const struct file_operations romfs_ro_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define romfs_ro_fops	generic_ro_fops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  * storage.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) extern int romfs_dev_read(struct super_block *sb, unsigned long pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 			  void *buf, size_t buflen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) extern ssize_t romfs_dev_strnlen(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 				 unsigned long pos, size_t maxlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) extern int romfs_dev_strcmp(struct super_block *sb, unsigned long pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			    const char *str, size_t size);