knfsd: nfsd: provide export lookup wrappers which take a svc_rqst
Split the callers of exp_get_by_name(), exp_find(), and exp_parent() into
those that are processing requests and those that are doing other stuff (like
looking up filehandles for mountd).
No change in behavior, just a (fairly pointless, on its own) cleanup.
(Note this has the effect of making nfsd_cross_mnt() pass rqstp->rq_client
instead of exp->ex_client into exp_find_by_name(). However, the two should
have the same value at this point.)
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index af6abb2..9b569af 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1228,6 +1228,32 @@
return exp;
}
+/*
+ * Called from functions that handle requests; functions that do work on
+ * behalf of mountd are passed a single client name to use, and should
+ * use exp_get_by_name() or exp_find().
+ */
+struct svc_export *
+rqst_exp_get_by_name(struct svc_rqst *rqstp, struct vfsmount *mnt,
+ struct dentry *dentry)
+{
+ return exp_get_by_name(rqstp->rq_client, mnt, dentry,
+ &rqstp->rq_chandle);
+}
+
+struct svc_export *
+rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv)
+{
+ return exp_find(rqstp->rq_client, fsid_type, fsidv,
+ &rqstp->rq_chandle);
+}
+
+struct svc_export *
+rqst_exp_parent(struct svc_rqst *rqstp, struct vfsmount *mnt,
+ struct dentry *dentry)
+{
+ return exp_parent(rqstp->rq_client, mnt, dentry, &rqstp->rq_chandle);
+}
/*
* Called when we need the filehandle for the root of the pseudofs,
@@ -1243,7 +1269,7 @@
mk_fsid(FSID_NUM, fsidv, 0, 0, 0, NULL);
- exp = exp_find(rqstp->rq_client, FSID_NUM, fsidv, rqstp->rq_chandle);
+ exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
if (PTR_ERR(exp) == -ENOENT)
return nfserr_perm;
if (IS_ERR(exp))