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knfsd: nfsd: provide export lookup wrappers which take a svc_rqst

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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>
This commit is contained in:
J. Bruce Fields
2007-07-17 04:04:44 -07:00
committed by Linus Torvalds
parent 87548c37c8
commit 0989a78896
4 changed files with 38 additions and 7 deletions
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28
fs/nfsd/export.c
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@@ -1228,6 +1228,32 @@ exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv,
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 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp)
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))