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#ifndef _NFS_FS_i
#define _NFS_FS_I
#include <linux/list.h>
#include <linux/nfs.h>
#include <linux/pipe_fs_i.h>
/*
* nfs fs inode data in memory
*/
struct nfs_inode_info {
/*
* This is a place holder so named pipes on NFS filesystems
* work (more or less correctly). This must be first in the
* struct because the data is really accessed via inode->u.pipe_i.
*/
struct pipe_inode_info pipeinfo;
/*
* The 64bit fileid
*/
__u64 fsid;
__u64 fileid;
/*
* NFS file handle
*/
struct nfs_fh fh;
/*
* Various flags
*/
unsigned short flags;
/*
* read_cache_jiffies is when we started read-caching this inode,
* and read_cache_mtime is the mtime of the inode at that time.
* attrtimeo is for how long the cached information is assumed
* to be valid. A successful attribute revalidation doubles
* attrtimeo (up to acregmax/acdirmax), a failure resets it to
* acregmin/acdirmin.
*
* We need to revalidate the cached attrs for this inode if
*
* jiffies - read_cache_jiffies > attrtimeo
*
* and invalidate any cached data/flush out any dirty pages if
* we find that
*
* mtime != read_cache_mtime
*/
unsigned long read_cache_jiffies;
__u64 read_cache_ctime;
__u64 read_cache_mtime;
__u64 read_cache_atime;
__u64 read_cache_isize;
unsigned long attrtimeo;
unsigned long attrtimeo_timestamp;
/*
* This is the cookie verifier used for NFSv3 readdir
* operations
*/
__u32 cookieverf[2];
/*
* This is the list of dirty pages.
*/
struct list_head read;
struct list_head dirty;
struct list_head commit;
struct list_head writeback;
unsigned int nread,
ndirty,
ncommit,
npages;
/* Flush daemon info */
struct inode *hash_next,
*hash_prev;
unsigned long nextscan;
};
/*
* Legal inode flag values
*/
#define NFS_INO_STALE 0x0001 /* We suspect inode is stale */
#define NFS_INO_ADVISE_RDPLUS 0x0002 /* advise readdirplus */
#define NFS_INO_REVALIDATING 0x0004 /* in nfs_revalidate() */
#define NFS_IS_SNAPSHOT 0x0010 /* a snapshot file */
#define NFS_INO_FLUSH 0x0040 /* inode is due for flushing */
/*
* NFS ACL info.
* This information will be used by nfs_permission() in the obvious fashion,
* but also helps the RPC engine to select whether to try the operation first
* with the effective or real uid/gid first.
*
* For NFSv2, this info is obtained by just trying the operation in
* question and updating the ACL info according to the result.
* For NFSv3, the access() call is used to fill in the permission bits.
*
* Not yet used.
*/
struct nfs_acl_info {
struct nfs_acl_info * acl_next;
unsigned long acl_read_time;
uid_t acl_uid;
gid_t acl_gid;
unsigned int acl_bits;
};
/*
* NFS lock info
*/
struct nfs_lock_info {
u32 state;
u32 flags;
struct nlm_host *host;
};
/*
* Lock flag values
*/
#define NFS_LCK_GRANTED 0x0001 /* lock has been granted */
#endif
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