linux_dsm_epyc7002/fs/coda/coda_fs_i.h
Fabian Frederick 5bb44810f4 coda: ftoc validity check integration
This patch moves cfi check in coda_ftoc() instead of repeating it in the
wild.

  Module size
     text	   data	    bss	    dec	    hex	filename
    28297	   1040	    700	  30037	   7555	fs/coda/coda.ko.before
    28263	    980	    700	  29943	   74f7	fs/coda/coda.ko.after

Link: http://lkml.kernel.org/r/a2c27663ec4547018c92d71c63b1dff4650b6546.1558117389.git.jaharkes@cs.cmu.edu
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Yann Droneaud <ydroneaud@opteya.com>
Cc: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-16 19:23:23 -07:00

59 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* coda_fs_i.h
*
* Copyright (C) 1998 Carnegie Mellon University
*
*/
#ifndef _LINUX_CODA_FS_I
#define _LINUX_CODA_FS_I
#include <linux/types.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/coda.h>
/*
* coda fs inode data
* c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
* c_cached_perm.
* vfs_inode is set only when the inode is created and never changes.
* c_fid is set when the inode is created and should be considered immutable.
*/
struct coda_inode_info {
struct CodaFid c_fid; /* Coda identifier */
u_short c_flags; /* flags (see below) */
unsigned int c_mapcount; /* nr of times this inode is mapped */
unsigned int c_cached_epoch; /* epoch for cached permissions */
kuid_t c_uid; /* fsuid for cached permissions */
unsigned int c_cached_perm; /* cached access permissions */
spinlock_t c_lock;
struct inode vfs_inode;
};
/*
* coda fs file private data
*/
#define CODA_MAGIC 0xC0DAC0DA
struct coda_file_info {
int cfi_magic; /* magic number */
struct file *cfi_container; /* container file for this cnode */
unsigned int cfi_mapcount; /* nr of times this file is mapped */
};
/* flags */
#define C_VATTR 0x1 /* Validity of vattr in inode */
#define C_FLUSH 0x2 /* used after a flush */
#define C_DYING 0x4 /* from venus (which died) */
#define C_PURGE 0x8
struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
struct inode *coda_cnode_makectl(struct super_block *sb);
struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
struct coda_file_info *coda_ftoc(struct file *file);
void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
#endif