nfsd: support ext4 i_version

[safe/jmp/linux-2.6] / include / linux / nfsd / nfsfh.h

diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index 11e568e..8f641c9 100644 (file)
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -14,9 +14,8 @@
 #ifndef _LINUX_NFSD_FH_H
 #define _LINUX_NFSD_FH_H
 
-#include <asm/types.h>
-#ifdef __KERNEL__
 # include <linux/types.h>
+#ifdef __KERNEL__
 # include <linux/string.h>
 # include <linux/fs.h>
 #endif
@@ -68,6 +67,10 @@ struct nfs_fhbase_old {
  *     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
@@ -148,19 +151,15 @@ typedef struct svc_fh {
        __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;
@@ -276,6 +275,13 @@ fh_copy(struct svc_fh *dst, struct svc_fh *src)
        return dst;
 }
 
+static inline void
+fh_copy_shallow(struct knfsd_fh *dst, struct knfsd_fh *src)
+{
+       dst->fh_size = src->fh_size;
+       memcpy(&dst->fh_base, &src->fh_base, src->fh_size);
+}
+
 static __inline__ struct svc_fh *
 fh_init(struct svc_fh *fhp, int maxsize)
 {
@@ -297,36 +303,13 @@ fill_pre_wcc(struct svc_fh *fhp)
        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;
+               fhp->fh_pre_size  = inode->i_size;
+               fhp->fh_pre_change = inode->i_version;
+               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;
-}
+extern void fill_post_wcc(struct svc_fh *);
 #else
 #define        fill_pre_wcc(ignored)
 #define fill_post_wcc(notused)