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)  *  coda_fs_i.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 1998 Carnegie Mellon University
^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) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #ifndef _LINUX_CODA_FS_I
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define _LINUX_CODA_FS_I
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/coda.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * coda fs inode data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * c_cached_perm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * vfs_inode is set only when the inode is created and never changes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * c_fid is set when the inode is created and should be considered immutable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct coda_inode_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	struct CodaFid	   c_fid;	/* Coda identifier */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	u_short	           c_flags;     /* flags (see below) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	unsigned int	   c_mapcount;  /* nr of times this inode is mapped */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	unsigned int	   c_cached_epoch; /* epoch for cached permissions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	kuid_t		   c_uid;	/* fsuid for cached permissions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	unsigned int       c_cached_perm; /* cached access permissions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	spinlock_t	   c_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	struct inode	   vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^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)  * coda fs file private data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define CODA_MAGIC 0xC0DAC0DA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct coda_file_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	int		   cfi_magic;	  /* magic number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	struct file	  *cfi_container; /* container file for this cnode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	bool		   cfi_access_intent; /* is access intent supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define C_VATTR       0x1   /* Validity of vattr in inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define C_FLUSH       0x2   /* used after a flush */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define C_DYING       0x4   /* from venus (which died) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define C_PURGE       0x8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct inode *coda_cnode_makectl(struct super_block *sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct coda_file_info *coda_ftoc(struct file *file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif