cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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coda_fs_i.h (1971B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 *  coda_fs_i.h
      4 *
      5 *  Copyright (C) 1998 Carnegie Mellon University
      6 *
      7 */
      8
      9#ifndef _LINUX_CODA_FS_I
     10#define _LINUX_CODA_FS_I
     11
     12#include <linux/types.h>
     13#include <linux/list.h>
     14#include <linux/spinlock.h>
     15#include <linux/coda.h>
     16
     17/*
     18 * coda fs inode data
     19 * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
     20 * c_cached_perm.
     21 * vfs_inode is set only when the inode is created and never changes.
     22 * c_fid is set when the inode is created and should be considered immutable.
     23 */
     24struct coda_inode_info {
     25	struct CodaFid	   c_fid;	/* Coda identifier */
     26	u_short	           c_flags;     /* flags (see below) */
     27	unsigned int	   c_mapcount;  /* nr of times this inode is mapped */
     28	unsigned int	   c_cached_epoch; /* epoch for cached permissions */
     29	kuid_t		   c_uid;	/* fsuid for cached permissions */
     30	unsigned int       c_cached_perm; /* cached access permissions */
     31	spinlock_t	   c_lock;
     32	struct inode	   vfs_inode;
     33};
     34
     35/*
     36 * coda fs file private data
     37 */
     38#define CODA_MAGIC 0xC0DAC0DA
     39struct coda_file_info {
     40	int		   cfi_magic;	  /* magic number */
     41	struct file	  *cfi_container; /* container file for this cnode */
     42	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
     43	bool		   cfi_access_intent; /* is access intent supported */
     44};
     45
     46/* flags */
     47#define C_VATTR       0x1   /* Validity of vattr in inode */
     48#define C_FLUSH       0x2   /* used after a flush */
     49#define C_DYING       0x4   /* from venus (which died) */
     50#define C_PURGE       0x8
     51
     52struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
     53struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
     54struct inode *coda_cnode_makectl(struct super_block *sb);
     55struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
     56struct coda_file_info *coda_ftoc(struct file *file);
     57void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
     58
     59#endif