Use struct path in struct svc_export
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
Linus Torvalds
Родитель
448678a0f3
Коммит
5477549161
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@ -332,10 +332,9 @@ static void nfsd4_fslocs_free(struct nfsd4_fs_locations *fsloc)
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static void svc_export_put(struct kref *ref)
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{
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struct svc_export *exp = container_of(ref, struct svc_export, h.ref);
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dput(exp->ex_dentry);
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mntput(exp->ex_mnt);
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path_put(&exp->ex_path);
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auth_domain_put(exp->ex_client);
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kfree(exp->ex_path);
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kfree(exp->ex_pathname);
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nfsd4_fslocs_free(&exp->ex_fslocs);
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kfree(exp);
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}
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@ -349,7 +348,7 @@ static void svc_export_request(struct cache_detail *cd,
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char *pth;
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qword_add(bpp, blen, exp->ex_client->name);
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pth = d_path(exp->ex_dentry, exp->ex_mnt, *bpp, *blen);
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pth = d_path(exp->ex_path.dentry, exp->ex_path.mnt, *bpp, *blen);
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if (IS_ERR(pth)) {
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/* is this correct? */
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(*bpp)[0] = '\n';
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@ -508,7 +507,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
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int an_int;
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nd.path.dentry = NULL;
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exp.ex_path = NULL;
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exp.ex_pathname = NULL;
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/* fs locations */
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exp.ex_fslocs.locations = NULL;
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@ -547,11 +546,11 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
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exp.h.flags = 0;
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exp.ex_client = dom;
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exp.ex_mnt = nd.path.mnt;
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exp.ex_dentry = nd.path.dentry;
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exp.ex_path = kstrdup(buf, GFP_KERNEL);
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exp.ex_path.mnt = nd.path.mnt;
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exp.ex_path.dentry = nd.path.dentry;
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exp.ex_pathname = kstrdup(buf, GFP_KERNEL);
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err = -ENOMEM;
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if (!exp.ex_path)
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if (!exp.ex_pathname)
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goto out;
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/* expiry */
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@ -628,7 +627,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
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out:
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nfsd4_fslocs_free(&exp.ex_fslocs);
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kfree(exp.ex_uuid);
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kfree(exp.ex_path);
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kfree(exp.ex_pathname);
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if (nd.path.dentry)
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path_put(&nd.path);
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out_no_path:
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@ -653,7 +652,7 @@ static int svc_export_show(struct seq_file *m,
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return 0;
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}
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exp = container_of(h, struct svc_export, h);
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seq_path(m, exp->ex_mnt, exp->ex_dentry, " \t\n\\");
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seq_path(m, exp->ex_path.mnt, exp->ex_path.dentry, " \t\n\\");
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seq_putc(m, '\t');
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seq_escape(m, exp->ex_client->name, " \t\n\\");
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seq_putc(m, '(');
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@ -680,8 +679,8 @@ static int svc_export_match(struct cache_head *a, struct cache_head *b)
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struct svc_export *orig = container_of(a, struct svc_export, h);
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struct svc_export *new = container_of(b, struct svc_export, h);
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return orig->ex_client == new->ex_client &&
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orig->ex_dentry == new->ex_dentry &&
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orig->ex_mnt == new->ex_mnt;
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orig->ex_path.dentry == new->ex_path.dentry &&
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orig->ex_path.mnt == new->ex_path.mnt;
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}
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static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
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@ -691,9 +690,9 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
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kref_get(&item->ex_client->ref);
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new->ex_client = item->ex_client;
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new->ex_dentry = dget(item->ex_dentry);
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new->ex_mnt = mntget(item->ex_mnt);
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new->ex_path = NULL;
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new->ex_path.dentry = dget(item->ex_path.dentry);
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new->ex_path.mnt = mntget(item->ex_path.mnt);
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new->ex_pathname = NULL;
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new->ex_fslocs.locations = NULL;
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new->ex_fslocs.locations_count = 0;
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new->ex_fslocs.migrated = 0;
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@ -711,8 +710,8 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem)
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new->ex_fsid = item->ex_fsid;
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new->ex_uuid = item->ex_uuid;
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item->ex_uuid = NULL;
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new->ex_path = item->ex_path;
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item->ex_path = NULL;
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new->ex_pathname = item->ex_pathname;
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item->ex_pathname = NULL;
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new->ex_fslocs.locations = item->ex_fslocs.locations;
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item->ex_fslocs.locations = NULL;
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new->ex_fslocs.locations_count = item->ex_fslocs.locations_count;
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@ -755,8 +754,8 @@ svc_export_lookup(struct svc_export *exp)
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struct cache_head *ch;
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int hash;
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hash = hash_ptr(exp->ex_client, EXPORT_HASHBITS);
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hash ^= hash_ptr(exp->ex_dentry, EXPORT_HASHBITS);
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hash ^= hash_ptr(exp->ex_mnt, EXPORT_HASHBITS);
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hash ^= hash_ptr(exp->ex_path.dentry, EXPORT_HASHBITS);
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hash ^= hash_ptr(exp->ex_path.mnt, EXPORT_HASHBITS);
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ch = sunrpc_cache_lookup(&svc_export_cache, &exp->h,
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hash);
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@ -772,8 +771,8 @@ svc_export_update(struct svc_export *new, struct svc_export *old)
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struct cache_head *ch;
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int hash;
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hash = hash_ptr(old->ex_client, EXPORT_HASHBITS);
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hash ^= hash_ptr(old->ex_dentry, EXPORT_HASHBITS);
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hash ^= hash_ptr(old->ex_mnt, EXPORT_HASHBITS);
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hash ^= hash_ptr(old->ex_path.dentry, EXPORT_HASHBITS);
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hash ^= hash_ptr(old->ex_path.mnt, EXPORT_HASHBITS);
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ch = sunrpc_cache_update(&svc_export_cache, &new->h,
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&old->h,
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@ -815,8 +814,8 @@ static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
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key.ek_client = clp;
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key.ek_fsidtype = fsid_type;
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memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
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key.ek_mnt = exp->ex_mnt;
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key.ek_dentry = exp->ex_dentry;
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key.ek_mnt = exp->ex_path.mnt;
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key.ek_dentry = exp->ex_path.dentry;
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key.h.expiry_time = NEVER;
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key.h.flags = 0;
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@ -870,8 +869,8 @@ static svc_export *exp_get_by_name(svc_client *clp, struct vfsmount *mnt,
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return ERR_PTR(-ENOENT);
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key.ex_client = clp;
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key.ex_mnt = mnt;
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key.ex_dentry = dentry;
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key.ex_path.mnt = mnt;
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key.ex_path.dentry = dentry;
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exp = svc_export_lookup(&key);
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if (exp == NULL)
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@ -968,7 +967,7 @@ static int exp_fsid_hash(svc_client *clp, struct svc_export *exp)
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static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
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{
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u32 fsid[2];
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struct inode *inode = exp->ex_dentry->d_inode;
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struct inode *inode = exp->ex_path.dentry->d_inode;
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dev_t dev = inode->i_sb->s_dev;
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if (old_valid_dev(dev)) {
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@ -982,7 +981,7 @@ static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
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static void exp_unhash(struct svc_export *exp)
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{
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struct svc_expkey *ek;
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struct inode *inode = exp->ex_dentry->d_inode;
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struct inode *inode = exp->ex_path.dentry->d_inode;
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ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino);
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if (!IS_ERR(ek)) {
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@ -1064,12 +1063,11 @@ exp_export(struct nfsctl_export *nxp)
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new.h.expiry_time = NEVER;
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new.h.flags = 0;
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new.ex_path = kstrdup(nxp->ex_path, GFP_KERNEL);
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if (!new.ex_path)
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new.ex_pathname = kstrdup(nxp->ex_path, GFP_KERNEL);
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if (!new.ex_pathname)
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goto finish;
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new.ex_client = clp;
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new.ex_mnt = nd.path.mnt;
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new.ex_dentry = nd.path.dentry;
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new.ex_path = nd.path;
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new.ex_flags = nxp->ex_flags;
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new.ex_anon_uid = nxp->ex_anon_uid;
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new.ex_anon_gid = nxp->ex_anon_gid;
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@ -1090,8 +1088,7 @@ exp_export(struct nfsctl_export *nxp)
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} else
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err = 0;
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finish:
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if (new.ex_path)
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kfree(new.ex_path);
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kfree(new.ex_pathname);
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if (exp)
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exp_put(exp);
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if (fsid_key && !IS_ERR(fsid_key))
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@ -1360,7 +1357,7 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp)
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exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
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if (IS_ERR(exp))
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return nfserrno(PTR_ERR(exp));
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rv = fh_compose(fhp, exp, exp->ex_dentry, NULL);
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rv = fh_compose(fhp, exp, exp->ex_path.dentry, NULL);
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if (rv)
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goto out;
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rv = check_nfsd_access(exp, rqstp);
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@ -67,7 +67,7 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
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if (nfserr)
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RETURN_STATUS(nfserr);
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err = vfs_getattr(resp->fh.fh_export->ex_mnt,
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err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
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resp->fh.fh_dentry, &resp->stat);
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nfserr = nfserrno(err);
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@ -218,7 +218,7 @@ encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
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int err;
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struct kstat stat;
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err = vfs_getattr(fhp->fh_export->ex_mnt, dentry, &stat);
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err = vfs_getattr(fhp->fh_export->ex_path.mnt, dentry, &stat);
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if (!err) {
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*p++ = xdr_one; /* attributes follow */
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lease_get_mtime(dentry->d_inode, &stat.mtime);
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@ -270,7 +270,7 @@ void fill_post_wcc(struct svc_fh *fhp)
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if (fhp->fh_post_saved)
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printk("nfsd: inode locked twice during operation.\n");
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err = vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry,
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err = vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry,
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&fhp->fh_post_attr);
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if (err)
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fhp->fh_post_saved = 0;
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@ -1330,9 +1330,9 @@ static char *nfsd4_path(struct svc_rqst *rqstp, struct svc_export *exp, __be32 *
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*stat = exp_pseudoroot(rqstp, &tmp_fh);
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if (*stat)
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return NULL;
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rootpath = tmp_fh.fh_export->ex_path;
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rootpath = tmp_fh.fh_export->ex_pathname;
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path = exp->ex_path;
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path = exp->ex_pathname;
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if (strncmp(path, rootpath, strlen(rootpath))) {
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dprintk("nfsd: fs_locations failed;"
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@ -1481,7 +1481,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
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goto out;
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}
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err = vfs_getattr(exp->ex_mnt, dentry, &stat);
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err = vfs_getattr(exp->ex_path.mnt, dentry, &stat);
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if (err)
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goto out_nfserr;
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if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
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@ -1838,9 +1838,9 @@ out_acl:
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* and this is the root of a cross-mounted filesystem.
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*/
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if (ignore_crossmnt == 0 &&
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exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
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err = vfs_getattr(exp->ex_mnt->mnt_parent,
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exp->ex_mnt->mnt_mountpoint, &stat);
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exp->ex_path.mnt->mnt_root->d_inode == dentry->d_inode) {
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err = vfs_getattr(exp->ex_path.mnt->mnt_parent,
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exp->ex_path.mnt->mnt_mountpoint, &stat);
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if (err)
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goto out_nfserr;
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}
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@ -47,7 +47,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
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return 1;
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tdentry = dget(dentry);
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while (tdentry != exp->ex_dentry && ! IS_ROOT(tdentry)) {
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while (tdentry != exp->ex_path.dentry && !IS_ROOT(tdentry)) {
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/* make sure parents give x permission to user */
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int err;
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parent = dget_parent(tdentry);
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@ -59,9 +59,9 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
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dput(tdentry);
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tdentry = parent;
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}
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if (tdentry != exp->ex_dentry)
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if (tdentry != exp->ex_path.dentry)
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dprintk("nfsd_acceptable failed at %p %s\n", tdentry, tdentry->d_name.name);
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rv = (tdentry == exp->ex_dentry);
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rv = (tdentry == exp->ex_path.dentry);
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dput(tdentry);
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return rv;
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}
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@ -209,9 +209,9 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
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fileid_type = fh->fh_fileid_type;
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if (fileid_type == FILEID_ROOT)
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dentry = dget(exp->ex_dentry);
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dentry = dget(exp->ex_path.dentry);
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else {
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dentry = exportfs_decode_fh(exp->ex_mnt, fid,
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dentry = exportfs_decode_fh(exp->ex_path.mnt, fid,
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data_left, fileid_type,
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nfsd_acceptable, exp);
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}
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@ -299,7 +299,7 @@ out:
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static void _fh_update(struct svc_fh *fhp, struct svc_export *exp,
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struct dentry *dentry)
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{
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if (dentry != exp->ex_dentry) {
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if (dentry != exp->ex_path.dentry) {
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struct fid *fid = (struct fid *)
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(fhp->fh_handle.fh_auth + fhp->fh_handle.fh_size/4 - 1);
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int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
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@ -344,12 +344,12 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
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struct inode * inode = dentry->d_inode;
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struct dentry *parent = dentry->d_parent;
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__u32 *datap;
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dev_t ex_dev = exp->ex_dentry->d_inode->i_sb->s_dev;
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int root_export = (exp->ex_dentry == exp->ex_dentry->d_sb->s_root);
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dev_t ex_dev = exp->ex_path.dentry->d_inode->i_sb->s_dev;
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int root_export = (exp->ex_path.dentry == exp->ex_path.dentry->d_sb->s_root);
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dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %s/%s, ino=%ld)\n",
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MAJOR(ex_dev), MINOR(ex_dev),
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(long) exp->ex_dentry->d_inode->i_ino,
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(long) exp->ex_path.dentry->d_inode->i_ino,
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parent->d_name.name, dentry->d_name.name,
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(inode ? inode->i_ino : 0));
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@ -391,7 +391,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
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/* FALL THROUGH */
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case FSID_MAJOR_MINOR:
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case FSID_ENCODE_DEV:
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if (!(exp->ex_dentry->d_inode->i_sb->s_type->fs_flags
|
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if (!(exp->ex_path.dentry->d_inode->i_sb->s_type->fs_flags
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& FS_REQUIRES_DEV))
|
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goto retry;
|
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break;
|
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|
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@ -454,7 +454,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
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fhp->fh_handle.ofh_dev = old_encode_dev(ex_dev);
|
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fhp->fh_handle.ofh_xdev = fhp->fh_handle.ofh_dev;
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fhp->fh_handle.ofh_xino =
|
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ino_t_to_u32(exp->ex_dentry->d_inode->i_ino);
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ino_t_to_u32(exp->ex_path.dentry->d_inode->i_ino);
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fhp->fh_handle.ofh_dirino = ino_t_to_u32(parent_ino(dentry));
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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;
|
||||
|
|
|
|||
|
|
@ -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));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -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;
|
||||
|
|
|
|||
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