diff options
| author | Neil Brown <neilb@cse.unsw.edu.au> | 2002-10-11 05:34:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-10-11 05:34:28 -0700 |
| commit | bbe0c3d99f33fa97db37a1c4e393c79965666752 (patch) | |
| tree | cd2bbbfb0dcb297e25d030e02ba8970de652e213 | |
| parent | 38782482243a134ab8c87e384a8238aafe12903d (diff) | |
[PATCH] kNFSd: New routine exp_pseudoroot() to find 'root' filehandle for nfsv4
NFSv4 has a concept of a 'root' filehandle (from which all other can
be found via LOOKUP, so no need for mountd).
This patch defines exp_pseudoroot(), which is used to set the filehandle
for the root of the pseudofs. The root is defined to be the export
point with fsid == 0.
| -rw-r--r-- | fs/nfsd/export.c | 17 | ||||
| -rw-r--r-- | include/linux/nfsd/export.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index 8b451ba42aa6..9474463e981b 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -550,6 +550,23 @@ out: return err; } +/* + * Called when we need the filehandle for the root of the pseudofs, + * for a given NFSv4 client. The root is defined to be the + * export point with fsid==0 + */ +int +exp_pseudoroot(struct svc_client *clp, struct svc_fh *fhp) +{ + struct svc_export *exp; + + exp = exp_get_fsid(clp, 0); + if (!exp) + return nfserr_perm; + + dget(exp->ex_dentry); + return fh_compose(fhp, exp, exp->ex_dentry, NULL); +} /* * Find a valid client given an inet address. We always move the most diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h index 8c79deb497ee..9c50603cd671 100644 --- a/include/linux/nfsd/export.h +++ b/include/linux/nfsd/export.h @@ -100,6 +100,7 @@ struct svc_export * exp_parent(struct svc_client *clp, struct vfsmount *mnt, struct dentry *dentry); int exp_rootfh(struct svc_client *, char *path, struct knfsd_fh *, int maxsize); +int exp_pseudoroot(struct svc_client *, struct svc_fh *fhp); int nfserrno(int errno); static inline struct svc_export * |