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Use struct path in struct svc_export

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I'm embedding struct path into struct svc_export.

[akpm@linux-foundation.org: coding-style fixes]
[ezk@cs.sunysb.edu: NFSD: fix wrong mnt_writer count in rename]
Signed-off-by: Jan Blunck <jblunck@suse.de>
Acked-by: J. Bruce Fields <bfields@citi.umich.edu>
Acked-by: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Blunck 2008-02-14 19:38:39 -08:00 committed by Linus Torvalds
parent 448678a0f3
commit 5477549161
9 changed files with 67 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
fs/nfsd/export.c
View File

@ -332,10 +332,9 @@ static void nfsd4_fslocs_free(struct nfsd4_fs_locations *fsloc)
static void svc_export_put(struct kref *ref)
{
struct svc_export *exp = container_of(ref, struct svc_export, h.ref);
dput(exp->ex_dentry);
mntput(exp->ex_mnt);
path_put(&exp->ex_path);
auth_domain_put(exp->ex_client);
kfree(exp->ex_path);
kfree(exp->ex_pathname);
nfsd4_fslocs_free(&exp->ex_fslocs);
kfree(exp);
}
@ -349,7 +348,7 @@ static void svc_export_request(struct cache_detail *cd,
char *pth;
qword_add(bpp, blen, exp->ex_client->name);
pth = d_path(exp->ex_dentry, exp->ex_mnt, *bpp, *blen);
pth = d_path(exp->ex_path.dentry, exp->ex_path.mnt, *bpp, *blen);
if (IS_ERR(pth)) {
/* is this correct? */
(*bpp)[0] = '\n';
@ -508,7 +507,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
int an_int;
nd.path.dentry = NULL;
exp.ex_path = NULL;
exp.ex_pathname = NULL;
/* fs locations */
exp.ex_fslocs.locations = NULL;
@ -547,11 +546,11 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
exp.h.flags = 0;
exp.ex_client = dom;
exp.ex_mnt = nd.path.mnt;
exp.ex_dentry = nd.path.dentry;
exp.ex_path = kstrdup(buf, GFP_KERNEL);
exp.ex_path.mnt = nd.path.mnt;
exp.ex_path.dentry = nd.path.dentry;
exp.ex_pathname = kstrdup(buf, GFP_KERNEL);
err = -ENOMEM;
if (!exp.ex_path)
if (!exp.ex_pathname)
goto out;
/* expiry */
@ -628,7 +627,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
out:
nfsd4_fslocs_free(&exp.ex_fslocs);
kfree(exp.ex_uuid);
kfree(exp.ex_path);
kfree(exp.ex_pathname);
if (nd.path.dentry)
path_put(&nd.path);
out_no_path:
@ -653,7 +652,7 @@ static int svc_export_show(struct seq_file *m,
return 0;
}
exp = container_of(h, struct svc_export, h);
seq_path(m, exp->ex_mnt, exp->ex_dentry, " \t\n\\");
seq_path(m, exp->ex_path.mnt, exp->ex_path.dentry, " \t\n\\");
seq_putc(m, '\t');
seq_escape(m, exp->ex_client->name, " \t\n\\");
seq_putc(m, '(');
@ -680,8 +679,8 @@ static int svc_export_match(struct cache_head *a, struct cache_head *b)
struct svc_export *orig = container_of(a, struct svc_export, h);
struct svc_export *new = container_of(b, struct svc_export, h);
return orig->ex_client == new->ex_client &&
orig->ex_dentry == new->ex_dentry &&
orig->ex_mnt == new->ex_mnt;
orig->ex_path.dentry == new->ex_path.dentry &&
orig->ex_path.mnt == new->ex_path.mnt;
}
static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
@ -691,9 +690,9 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
kref_get(&item->ex_client->ref);
new->ex_client = item->ex_client;
new->ex_dentry = dget(item->ex_dentry);
new->ex_mnt = mntget(item->ex_mnt);
new->ex_path = NULL;
new->ex_path.dentry = dget(item->ex_path.dentry);
new->ex_path.mnt = mntget(item->ex_path.mnt);
new->ex_pathname = NULL;
new->ex_fslocs.locations = NULL;
new->ex_fslocs.locations_count = 0;
new->ex_fslocs.migrated = 0;
@ -711,8 +710,8 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem)
new->ex_fsid = item->ex_fsid;
new->ex_uuid = item->ex_uuid;
item->ex_uuid = NULL;
new->ex_path = item->ex_path;
item->ex_path = NULL;
new->ex_pathname = item->ex_pathname;
item->ex_pathname = NULL;
new->ex_fslocs.locations = item->ex_fslocs.locations;
item->ex_fslocs.locations = NULL;
new->ex_fslocs.locations_count = item->ex_fslocs.locations_count;
@ -755,8 +754,8 @@ svc_export_lookup(struct svc_export *exp)
struct cache_head *ch;
int hash;
hash = hash_ptr(exp->ex_client, EXPORT_HASHBITS);
hash ^= hash_ptr(exp->ex_dentry, EXPORT_HASHBITS);
hash ^= hash_ptr(exp->ex_mnt, EXPORT_HASHBITS);
hash ^= hash_ptr(exp->ex_path.dentry, EXPORT_HASHBITS);
hash ^= hash_ptr(exp->ex_path.mnt, EXPORT_HASHBITS);
ch = sunrpc_cache_lookup(&svc_export_cache, &exp->h,
hash);
@ -772,8 +771,8 @@ svc_export_update(struct svc_export *new, struct svc_export *old)
struct cache_head *ch;
int hash;
hash = hash_ptr(old->ex_client, EXPORT_HASHBITS);
hash ^= hash_ptr(old->ex_dentry, EXPORT_HASHBITS);
hash ^= hash_ptr(old->ex_mnt, EXPORT_HASHBITS);
hash ^= hash_ptr(old->ex_path.dentry, EXPORT_HASHBITS);
hash ^= hash_ptr(old->ex_path.mnt, EXPORT_HASHBITS);
ch = sunrpc_cache_update(&svc_export_cache, &new->h,
&old->h,
@ -815,8 +814,8 @@ static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
key.ek_client = clp;
key.ek_fsidtype = fsid_type;
memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
key.ek_mnt = exp->ex_mnt;
key.ek_dentry = exp->ex_dentry;
key.ek_mnt = exp->ex_path.mnt;
key.ek_dentry = exp->ex_path.dentry;
key.h.expiry_time = NEVER;
key.h.flags = 0;
@ -870,8 +869,8 @@ static svc_export *exp_get_by_name(svc_client *clp, struct vfsmount *mnt,
return ERR_PTR(-ENOENT);
key.ex_client = clp;
key.ex_mnt = mnt;
key.ex_dentry = dentry;
key.ex_path.mnt = mnt;
key.ex_path.dentry = dentry;
exp = svc_export_lookup(&key);
if (exp == NULL)
@ -968,7 +967,7 @@ static int exp_fsid_hash(svc_client *clp, struct svc_export *exp)
static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
{
u32 fsid[2];
struct inode *inode = exp->ex_dentry->d_inode;
struct inode *inode = exp->ex_path.dentry->d_inode;
dev_t dev = inode->i_sb->s_dev;
if (old_valid_dev(dev)) {
@ -982,7 +981,7 @@ static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
static void exp_unhash(struct svc_export *exp)
{
struct svc_expkey *ek;
struct inode *inode = exp->ex_dentry->d_inode;
struct inode *inode = exp->ex_path.dentry->d_inode;
ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino);
if (!IS_ERR(ek)) {
@ -1064,12 +1063,11 @@ exp_export(struct nfsctl_export *nxp)
new.h.expiry_time = NEVER;
new.h.flags = 0;
new.ex_path = kstrdup(nxp->ex_path, GFP_KERNEL);
if (!new.ex_path)
new.ex_pathname = kstrdup(nxp->ex_path, GFP_KERNEL);
if (!new.ex_pathname)
goto finish;
new.ex_client = clp;
new.ex_mnt = nd.path.mnt;
new.ex_dentry = nd.path.dentry;
new.ex_path = nd.path;
new.ex_flags = nxp->ex_flags;
new.ex_anon_uid = nxp->ex_anon_uid;
new.ex_anon_gid = nxp->ex_anon_gid;
@ -1090,8 +1088,7 @@ exp_export(struct nfsctl_export *nxp)
} else
err = 0;
finish:
if (new.ex_path)
kfree(new.ex_path);
kfree(new.ex_pathname);
if (exp)
exp_put(exp);
if (fsid_key && !IS_ERR(fsid_key))
@ -1360,7 +1357,7 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp)
exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
if (IS_ERR(exp))
return nfserrno(PTR_ERR(exp));
rv = fh_compose(fhp, exp, exp->ex_dentry, NULL);
rv = fh_compose(fhp, exp, exp->ex_path.dentry, NULL);
if (rv)
goto out;
rv = check_nfsd_access(exp, rqstp);

2
fs/nfsd/nfs3proc.c
View File

@ -67,7 +67,7 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
if (nfserr)
RETURN_STATUS(nfserr);
err = vfs_getattr(resp->fh.fh_export->ex_mnt,
err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry, &resp->stat);
nfserr = nfserrno(err);

4
fs/nfsd/nfs3xdr.c
View File

@ -218,7 +218,7 @@ encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
int err;
struct kstat stat;
err = vfs_getattr(fhp->fh_export->ex_mnt, dentry, &stat);
err = vfs_getattr(fhp->fh_export->ex_path.mnt, dentry, &stat);
if (!err) {
*p++ = xdr_one; /* attributes follow */
lease_get_mtime(dentry->d_inode, &stat.mtime);
@ -270,7 +270,7 @@ void fill_post_wcc(struct svc_fh *fhp)
if (fhp->fh_post_saved)
printk("nfsd: inode locked twice during operation.\n");
err = vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry,
err = vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry,
&fhp->fh_post_attr);
if (err)
fhp->fh_post_saved = 0;

12
fs/nfsd/nfs4xdr.c
View File

@ -1330,9 +1330,9 @@ static char *nfsd4_path(struct svc_rqst *rqstp, struct svc_export *exp, __be32 *
*stat = exp_pseudoroot(rqstp, &tmp_fh);
if (*stat)
return NULL;
rootpath = tmp_fh.fh_export->ex_path;
rootpath = tmp_fh.fh_export->ex_pathname;
path = exp->ex_path;
path = exp->ex_pathname;
if (strncmp(path, rootpath, strlen(rootpath))) {
dprintk("nfsd: fs_locations failed;"
@ -1481,7 +1481,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
goto out;
}
err = vfs_getattr(exp->ex_mnt, dentry, &stat);
err = vfs_getattr(exp->ex_path.mnt, dentry, &stat);
if (err)
goto out_nfserr;
if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
@ -1838,9 +1838,9 @@ out_acl:
* and this is the root of a cross-mounted filesystem.
*/
if (ignore_crossmnt == 0 &&
exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
err = vfs_getattr(exp->ex_mnt->mnt_parent,
exp->ex_mnt->mnt_mountpoint, &stat);
exp->ex_path.mnt->mnt_root->d_inode == dentry->d_inode) {
err = vfs_getattr(exp->ex_path.mnt->mnt_parent,
exp->ex_path.mnt->mnt_mountpoint, &stat);
if (err)
goto out_nfserr;
}

26
fs/nfsd/nfsfh.c
View File

@ -47,7 +47,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
return 1;
tdentry = dget(dentry);
while (tdentry != exp->ex_dentry && ! IS_ROOT(tdentry)) {
while (tdentry != exp->ex_path.dentry && !IS_ROOT(tdentry)) {
/* make sure parents give x permission to user */
int err;
parent = dget_parent(tdentry);
@ -59,9 +59,9 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
dput(tdentry);
tdentry = parent;
}
if (tdentry != exp->ex_dentry)
if (tdentry != exp->ex_path.dentry)
dprintk("nfsd_acceptable failed at %p %s\n", tdentry, tdentry->d_name.name);
rv = (tdentry == exp->ex_dentry);
rv = (tdentry == exp->ex_path.dentry);
dput(tdentry);
return rv;
}
@ -209,9 +209,9 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
fileid_type = fh->fh_fileid_type;
if (fileid_type == FILEID_ROOT)
dentry = dget(exp->ex_dentry);
dentry = dget(exp->ex_path.dentry);
else {
dentry = exportfs_decode_fh(exp->ex_mnt, fid,
dentry = exportfs_decode_fh(exp->ex_path.mnt, fid,
data_left, fileid_type,
nfsd_acceptable, exp);
}
@ -299,7 +299,7 @@ out:
static void _fh_update(struct svc_fh *fhp, struct svc_export *exp,
struct dentry *dentry)
{
if (dentry != exp->ex_dentry) {
if (dentry != exp->ex_path.dentry) {
struct fid *fid = (struct fid *)
(fhp->fh_handle.fh_auth + fhp->fh_handle.fh_size/4 - 1);
int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
@ -344,12 +344,12 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
struct inode * inode = dentry->d_inode;
struct dentry *parent = dentry->d_parent;
__u32 *datap;
dev_t ex_dev = exp->ex_dentry->d_inode->i_sb->s_dev;
int root_export = (exp->ex_dentry == exp->ex_dentry->d_sb->s_root);
dev_t ex_dev = exp->ex_path.dentry->d_inode->i_sb->s_dev;
int root_export = (exp->ex_path.dentry == exp->ex_path.dentry->d_sb->s_root);
dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %s/%s, ino=%ld)\n",
MAJOR(ex_dev), MINOR(ex_dev),
(long) exp->ex_dentry->d_inode->i_ino,
(long) exp->ex_path.dentry->d_inode->i_ino,
parent->d_name.name, dentry->d_name.name,
(inode ? inode->i_ino : 0));
@ -391,7 +391,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
/* FALL THROUGH */
case FSID_MAJOR_MINOR:
case FSID_ENCODE_DEV:
if (!(exp->ex_dentry->d_inode->i_sb->s_type->fs_flags
if (!(exp->ex_path.dentry->d_inode->i_sb->s_type->fs_flags
& FS_REQUIRES_DEV))
goto retry;
break;
@ -454,7 +454,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
fhp->fh_handle.ofh_dev = old_encode_dev(ex_dev);
fhp->fh_handle.ofh_xdev = fhp->fh_handle.ofh_dev;
fhp->fh_handle.ofh_xino =
ino_t_to_u32(exp->ex_dentry->d_inode->i_ino);
ino_t_to_u32(exp->ex_path.dentry->d_inode->i_ino);
fhp->fh_handle.ofh_dirino = ino_t_to_u32(parent_ino(dentry));
if (inode)
_fh_update_old(dentry, exp, &fhp->fh_handle);
@ -465,7 +465,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
datap = fhp->fh_handle.fh_auth+0;
fhp->fh_handle.fh_fsid_type = fsid_type;
mk_fsid(fsid_type, datap, ex_dev,
exp->ex_dentry->d_inode->i_ino,
exp->ex_path.dentry->d_inode->i_ino,
exp->ex_fsid, exp->ex_uuid);
len = key_len(fsid_type);
@ -571,7 +571,7 @@ enum fsid_source fsid_source(struct svc_fh *fhp)
case FSID_DEV:
case FSID_ENCODE_DEV:
case FSID_MAJOR_MINOR:
if (fhp->fh_export->ex_dentry->d_inode->i_sb->s_type->fs_flags
if (fhp->fh_export->ex_path.dentry->d_inode->i_sb->s_type->fs_flags
& FS_REQUIRES_DEV)
return FSIDSOURCE_DEV;
break;

6
fs/nfsd/nfsproc.c
View File

@ -41,7 +41,7 @@ static __be32
nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp)
{
if (err) return err;
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}
@ -49,7 +49,7 @@ static __be32
nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
{
if (err) return err;
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}
@ -164,7 +164,7 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
&resp->count);
if (nfserr) return nfserr;
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}

2
fs/nfsd/nfsxdr.c
View File

@ -207,7 +207,7 @@ encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
__be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
struct kstat stat;
vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry, &stat);
vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry, &stat);
return encode_fattr(rqstp, p, fhp, &stat);
}

13
fs/nfsd/vfs.c
View File

@ -101,7 +101,7 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
{
struct svc_export *exp = *expp, *exp2 = NULL;
struct dentry *dentry = *dpp;
struct vfsmount *mnt = mntget(exp->ex_mnt);
struct vfsmount *mnt = mntget(exp->ex_path.mnt);
struct dentry *mounts = dget(dentry);
int err = 0;
@ -156,15 +156,15 @@ nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (isdotent(name, len)) {
if (len==1)
dentry = dget(dparent);
else if (dparent != exp->ex_dentry) {
else if (dparent != exp->ex_path.dentry)
dentry = dget_parent(dparent);
} else if (!EX_NOHIDE(exp))
else if (!EX_NOHIDE(exp))
dentry = dget(dparent); /* .. == . just like at / */
else {
/* checking mountpoint crossing is very different when stepping up */
struct svc_export *exp2 = NULL;
struct dentry *dp;
struct vfsmount *mnt = mntget(exp->ex_mnt);
struct vfsmount *mnt = mntget(exp->ex_path.mnt);
dentry = dget(dparent);
while(dentry == mnt->mnt_root && follow_up(&mnt, &dentry))
;
@ -721,7 +721,8 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
DQUOT_INIT(inode);
}
*filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_mnt), flags);
*filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_path.mnt),
flags);
if (IS_ERR(*filp))
host_err = PTR_ERR(*filp);
out_nfserr:
@ -1462,7 +1463,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
if (!inode->i_op || !inode->i_op->readlink)
goto out;
touch_atime(fhp->fh_export->ex_mnt, dentry);
touch_atime(fhp->fh_export->ex_path.mnt, dentry);
/* N.B. Why does this call need a get_fs()??
* Remove the set_fs and watch the fireworks:-) --okir
*/

5
include/linux/nfsd/export.h
View File

@ -84,9 +84,8 @@ struct svc_export {
struct cache_head h;
struct auth_domain * ex_client;
int ex_flags;
struct vfsmount * ex_mnt;
struct dentry * ex_dentry;
char * ex_path;
struct path ex_path;
char *ex_pathname;
uid_t ex_anon_uid;
gid_t ex_anon_gid;
int ex_fsid;