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