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authorPeter Staubach <staubach@redhat.com>2007-08-16 12:10:07 -0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2007-10-09 18:31:57 -0400
commit40ee5dc6af351c1b3de245abed4bd8e6a4a5646a (patch)
tree5558d5f2b3df23e745b152c439e731a7aeff7ab6 /include/linux/nfsd
parent21fcd02be34f73bbc94db267b4db6ccd7332923d (diff)
knfsd: 64 bit ino support for NFS server
Modify the NFS server code to support 64 bit ino's, as appropriate for the system and the NFS protocol version. The gist of the changes is to query the underlying file system for attributes and not just to use the cached attributes in the inode. For this specific purpose, the inode only contains an ino field which unsigned long, which is large enough on 64 bit platforms, but is not large enough on 32 bit platforms. I haven't been able to find any reason why ->getattr can't be called while i_mutex. The specification indicates that i_mutex is not required to be held in order to invoke ->getattr, but it doesn't say that i_mutex can't be held while invoking ->getattr. I also haven't come to any conclusions regarding the value of lease_get_mtime() and whether it should or should not be invoked by fill_post_wcc() too. I chose not to change this because I thought that it was safer to leave well enough alone. If we decide to make a change, it can be done separately. Signed-off-by: Peter Staubach <staubach@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Acked-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'include/linux/nfsd')
-rw-r--r--include/linux/nfsd/nfsfh.h42
-rw-r--r--include/linux/nfsd/xdr4.h4
2 files changed, 6 insertions, 40 deletions
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index 11e568ee0ee..d1941cb965e 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -150,17 +150,7 @@ typedef struct svc_fh {
struct timespec fh_pre_ctime; /* ctime before oper */
/* 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 */
#endif /* CONFIG_NFSD_V3 */
} svc_fh;
@@ -297,36 +287,12 @@ 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_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)
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 1b653267133..b0ddfb41c79 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -428,8 +428,8 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
cinfo->atomic = 1;
cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
- cinfo->after_ctime_sec = fhp->fh_post_ctime.tv_sec;
- cinfo->after_ctime_nsec = fhp->fh_post_ctime.tv_nsec;
+ cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
+ cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
}
int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);