#ifndef _LINUX_NFSD_FH_H
#define _LINUX_NFSD_FH_H
-#include <asm/types.h>
-#ifdef __KERNEL__
# include <linux/types.h>
-# include <linux/string.h>
-# include <linux/fs.h>
+#ifdef __KERNEL__
+# include <linux/sunrpc/svc.h>
#endif
#include <linux/nfsd/const.h>
-#include <linux/nfsd/debug.h>
/*
* This is the old "dentry style" Linux NFSv2 file handle.
* 1 - 4 byte user specified identifier
* 2 - 4 byte major, 4 byte minor, 4 byte inode number - DEPRECATED
* 3 - 4 byte device id, encoded for user-space, 4 byte inode number
+ * 4 - 4 byte inode number and 4 byte uuid
+ * 5 - 8 byte uuid
+ * 6 - 16 byte uuid
+ * 7 - 8 byte inode number and 16 byte uuid
*
* The fileid_type identified how the file within the filesystem is encoded.
* This is (will be) passed to, and set by, the underlying filesystem if it supports
__u64 fh_pre_size; /* size before operation */
struct timespec fh_pre_mtime; /* mtime before oper */
struct timespec fh_pre_ctime; /* ctime before oper */
+ /*
+ * pre-op nfsv4 change attr: note must check IS_I_VERSION(inode)
+ * to find out if it is valid.
+ */
+ u64 fh_pre_change;
/* Post-op attributes saved in fh_unlock */
- umode_t fh_post_mode; /* i_mode */
- nlink_t fh_post_nlink; /* i_nlink */
- uid_t fh_post_uid; /* i_uid */
- gid_t fh_post_gid; /* i_gid */
- __u64 fh_post_size; /* i_size */
- unsigned long fh_post_blocks; /* i_blocks */
- unsigned long fh_post_blksize;/* i_blksize */
- __be32 fh_post_rdev[2];/* i_rdev */
- struct timespec fh_post_atime; /* i_atime */
- struct timespec fh_post_mtime; /* i_mtime */
- struct timespec fh_post_ctime; /* i_ctime */
+ struct kstat fh_post_attr; /* full attrs after operation */
+ u64 fh_post_change; /* nfsv4 change; see above */
#endif /* CONFIG_NFSD_V3 */
} svc_fh;
-static inline void mk_fsid_v0(u32 *fsidv, dev_t dev, ino_t ino)
-{
- fsidv[0] = htonl((MAJOR(dev)<<16) |
- MINOR(dev));
- fsidv[1] = ino_t_to_u32(ino);
-}
-
-static inline void mk_fsid_v1(u32 *fsidv, u32 fsid)
-{
- fsidv[0] = fsid;
-}
-
-static inline void mk_fsid_v2(u32 *fsidv, dev_t dev, ino_t ino)
-{
- fsidv[0] = htonl(MAJOR(dev));
- fsidv[1] = htonl(MINOR(dev));
- fsidv[2] = ino_t_to_u32(ino);
-}
-
-static inline void mk_fsid_v3(u32 *fsidv, dev_t dev, ino_t ino)
-{
- fsidv[0] = new_encode_dev(dev);
- fsidv[1] = ino_t_to_u32(ino);
-}
-
-static inline int key_len(int type)
-{
- switch(type) {
- case 0: return 8;
- case 1: return 4;
- case 2: return 12;
- case 3: return 8;
- default: return 0;
- }
-}
-
-/*
- * Shorthand for dprintk()'s
- */
-extern char * SVCFH_fmt(struct svc_fh *fhp);
-
-/*
- * Function prototypes
- */
-__be32 fh_verify(struct svc_rqst *, struct svc_fh *, int, int);
-__be32 fh_compose(struct svc_fh *, struct svc_export *, struct dentry *, struct svc_fh *);
-__be32 fh_update(struct svc_fh *);
-void fh_put(struct svc_fh *);
-
-static __inline__ struct svc_fh *
-fh_copy(struct svc_fh *dst, struct svc_fh *src)
-{
- WARN_ON(src->fh_dentry || src->fh_locked);
-
- *dst = *src;
- return dst;
-}
-
-static __inline__ struct svc_fh *
-fh_init(struct svc_fh *fhp, int maxsize)
-{
- memset(fhp, 0, sizeof(*fhp));
- fhp->fh_maxsize = maxsize;
- return fhp;
-}
-
-#ifdef CONFIG_NFSD_V3
-/*
- * Fill in the pre_op attr for the wcc data
- */
-static inline void
-fill_pre_wcc(struct svc_fh *fhp)
-{
- struct inode *inode;
-
- inode = fhp->fh_dentry->d_inode;
- if (!fhp->fh_pre_saved) {
- fhp->fh_pre_mtime = inode->i_mtime;
- fhp->fh_pre_ctime = inode->i_ctime;
- fhp->fh_pre_size = inode->i_size;
- fhp->fh_pre_saved = 1;
- }
-}
-
-/*
- * Fill in the post_op attr for the wcc data
- */
-static inline void
-fill_post_wcc(struct svc_fh *fhp)
-{
- struct inode *inode = fhp->fh_dentry->d_inode;
-
- if (fhp->fh_post_saved)
- printk("nfsd: inode locked twice during operation.\n");
-
- fhp->fh_post_mode = inode->i_mode;
- fhp->fh_post_nlink = inode->i_nlink;
- fhp->fh_post_uid = inode->i_uid;
- fhp->fh_post_gid = inode->i_gid;
- fhp->fh_post_size = inode->i_size;
- fhp->fh_post_blksize = BLOCK_SIZE;
- fhp->fh_post_blocks = inode->i_blocks;
- fhp->fh_post_rdev[0] = htonl((u32)imajor(inode));
- fhp->fh_post_rdev[1] = htonl((u32)iminor(inode));
- fhp->fh_post_atime = inode->i_atime;
- fhp->fh_post_mtime = inode->i_mtime;
- fhp->fh_post_ctime = inode->i_ctime;
- fhp->fh_post_saved = 1;
-}
-#else
-#define fill_pre_wcc(ignored)
-#define fill_post_wcc(notused)
-#endif /* CONFIG_NFSD_V3 */
-
-
-/*
- * Lock a file handle/inode
- * NOTE: both fh_lock and fh_unlock are done "by hand" in
- * vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once
- * so, any changes here should be reflected there.
- */
-
-static inline void
-fh_lock_nested(struct svc_fh *fhp, unsigned int subclass)
-{
- struct dentry *dentry = fhp->fh_dentry;
- struct inode *inode;
-
- dfprintk(FILEOP, "nfsd: fh_lock(%s) locked = %d\n",
- SVCFH_fmt(fhp), fhp->fh_locked);
-
- BUG_ON(!dentry);
-
- if (fhp->fh_locked) {
- printk(KERN_WARNING "fh_lock: %s/%s already locked!\n",
- dentry->d_parent->d_name.name, dentry->d_name.name);
- return;
- }
-
- inode = dentry->d_inode;
- mutex_lock_nested(&inode->i_mutex, subclass);
- fill_pre_wcc(fhp);
- fhp->fh_locked = 1;
-}
-
-static inline void
-fh_lock(struct svc_fh *fhp)
-{
- fh_lock_nested(fhp, I_MUTEX_NORMAL);
-}
-
-/*
- * Unlock a file handle/inode
- */
-static inline void
-fh_unlock(struct svc_fh *fhp)
-{
- BUG_ON(!fhp->fh_dentry);
-
- if (fhp->fh_locked) {
- fill_post_wcc(fhp);
- mutex_unlock(&fhp->fh_dentry->d_inode->i_mutex);
- fhp->fh_locked = 0;
- }
-}
#endif /* __KERNEL__ */
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