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nfsd struct path use: exp_get_by_name() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2009-04-18 02:04:46 -04:00
parent dd5cae6e97
commit 55430e2ece
1 changed files with 18 additions and 20 deletions
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38
fs/nfsd/export.c
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@ -847,9 +847,8 @@ exp_get_fsid_key(svc_client *clp, int fsid)
return exp_find_key(clp, FSID_NUM, fsidv, NULL);
}
static svc_export *exp_get_by_name(svc_client *clp, struct vfsmount *mnt,
struct dentry *dentry,
struct cache_req *reqp)
static svc_export *exp_get_by_name(svc_client *clp, const struct path *path,
struct cache_req *reqp)
{
struct svc_export *exp, key;
int err;
@ -858,8 +857,7 @@ static svc_export *exp_get_by_name(svc_client *clp, struct vfsmount *mnt,
return ERR_PTR(-ENOENT);
key.ex_client = clp;
key.ex_path.mnt = mnt;
key.ex_path.dentry = dentry;
key.ex_path = *path;
exp = svc_export_lookup(&key);
if (exp == NULL)
@ -877,20 +875,19 @@ static struct svc_export *exp_parent(svc_client *clp, struct vfsmount *mnt,
struct dentry *dentry,
struct cache_req *reqp)
{
struct path path = {.mnt = mnt, .dentry = dentry};
svc_export *exp;
dget(dentry);
exp = exp_get_by_name(clp, mnt, dentry, reqp);
dget(path.dentry);
exp = exp_get_by_name(clp, &path, reqp);
while (PTR_ERR(exp) == -ENOENT && !IS_ROOT(dentry)) {
struct dentry *parent;
parent = dget_parent(dentry);
dput(dentry);
dentry = parent;
exp = exp_get_by_name(clp, mnt, dentry, reqp);
while (PTR_ERR(exp) == -ENOENT && !IS_ROOT(path.dentry)) {
struct dentry *parent = dget_parent(path.dentry);
dput(path.dentry);
path.dentry = parent;
exp = exp_get_by_name(clp, &path, reqp);
}
dput(dentry);
dput(path.dentry);
return exp;
}
@ -1018,7 +1015,7 @@ exp_export(struct nfsctl_export *nxp)
goto out_put_clp;
err = -EINVAL;
exp = exp_get_by_name(clp, path.mnt, path.dentry, NULL);
exp = exp_get_by_name(clp, &path, NULL);
memset(&new, 0, sizeof(new));
@ -1135,7 +1132,7 @@ exp_unexport(struct nfsctl_export *nxp)
goto out_domain;
err = -EINVAL;
exp = exp_get_by_name(dom, path.mnt, path.dentry, NULL);
exp = exp_get_by_name(dom, &path, NULL);
path_put(&path);
if (IS_ERR(exp))
goto out_domain;
@ -1207,7 +1204,7 @@ static struct svc_export *exp_find(struct auth_domain *clp, int fsid_type,
if (IS_ERR(ek))
return ERR_CAST(ek);
exp = exp_get_by_name(clp, ek->ek_path.mnt, ek->ek_path.dentry, reqp);
exp = exp_get_by_name(clp, &ek->ek_path, reqp);
cache_put(&ek->h, &svc_expkey_cache);
if (IS_ERR(exp))
@ -1251,12 +1248,13 @@ rqst_exp_get_by_name(struct svc_rqst *rqstp, struct vfsmount *mnt,
struct dentry *dentry)
{
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
struct path path = {.mnt = mnt, .dentry = dentry};
if (rqstp->rq_client == NULL)
goto gss;
/* First try the auth_unix client: */
exp = exp_get_by_name(rqstp->rq_client, mnt, dentry,
exp = exp_get_by_name(rqstp->rq_client, &path,
&rqstp->rq_chandle);
if (PTR_ERR(exp) == -ENOENT)
goto gss;
@ -1269,7 +1267,7 @@ gss:
/* Otherwise, try falling back on gss client */
if (rqstp->rq_gssclient == NULL)
return exp;
gssexp = exp_get_by_name(rqstp->rq_gssclient, mnt, dentry,
gssexp = exp_get_by_name(rqstp->rq_gssclient, &path,
&rqstp->rq_chandle);
if (PTR_ERR(gssexp) == -ENOENT)
return exp;