void (*create)(struct nfs4_client *);
void (*remove)(struct nfs4_client *);
int (*check)(struct nfs4_client *);
- void (*grace_done)(struct net *, time_t);
+ void (*grace_done)(struct nfsd_net *, time_t);
};
/* Globals */
-static struct file *rec_file;
static char user_recovery_dirname[PATH_MAX] = "/var/lib/nfs/v4recovery";
-static struct nfsd4_client_tracking_ops *client_tracking_ops;
-static bool in_grace;
static int
nfs4_save_creds(const struct cred **original_creds)
struct dentry *dir, *dentry;
struct nfs4_client_reclaim *crp;
int status;
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
dprintk("NFSD: nfsd4_create_clid_dir for \"%s\"\n", dname);
if (test_and_set_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
return;
- if (!rec_file)
+ if (!nn->rec_file)
return;
status = nfs4_make_rec_clidname(dname, &clp->cl_name);
if (status < 0)
return;
- status = mnt_want_write_file(rec_file);
+ status = mnt_want_write_file(nn->rec_file);
if (status)
return;
- dir = rec_file->f_path.dentry;
+ dir = nn->rec_file->f_path.dentry;
/* lock the parent */
mutex_lock(&dir->d_inode->i_mutex);
out_unlock:
mutex_unlock(&dir->d_inode->i_mutex);
if (status == 0) {
- if (in_grace) {
- crp = nfs4_client_to_reclaim(dname);
+ if (nn->in_grace) {
+ crp = nfs4_client_to_reclaim(dname, nn);
if (crp)
crp->cr_clp = clp;
}
- vfs_fsync(rec_file, 0);
+ vfs_fsync(nn->rec_file, 0);
} else {
printk(KERN_ERR "NFSD: failed to write recovery record"
" (err %d); please check that %s exists"
" and is writeable", status,
user_recovery_dirname);
}
- mnt_drop_write_file(rec_file);
+ mnt_drop_write_file(nn->rec_file);
nfs4_reset_creds(original_cred);
}
-typedef int (recdir_func)(struct dentry *, struct dentry *);
+typedef int (recdir_func)(struct dentry *, struct dentry *, struct nfsd_net *);
struct name_list {
char name[HEXDIR_LEN];
}
static int
-nfsd4_list_rec_dir(recdir_func *f)
+nfsd4_list_rec_dir(recdir_func *f, struct nfsd_net *nn)
{
const struct cred *original_cred;
- struct dentry *dir = rec_file->f_path.dentry;
+ struct dentry *dir = nn->rec_file->f_path.dentry;
LIST_HEAD(names);
int status;
if (status < 0)
return status;
- status = vfs_llseek(rec_file, 0, SEEK_SET);
+ status = vfs_llseek(nn->rec_file, 0, SEEK_SET);
if (status < 0) {
nfs4_reset_creds(original_cred);
return status;
}
- status = vfs_readdir(rec_file, nfsd4_build_namelist, &names);
+ status = vfs_readdir(nn->rec_file, nfsd4_build_namelist, &names);
mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
while (!list_empty(&names)) {
struct name_list *entry;
status = PTR_ERR(dentry);
break;
}
- status = f(dir, dentry);
+ status = f(dir, dentry, nn);
dput(dentry);
}
list_del(&entry->list);
}
static int
-nfsd4_unlink_clid_dir(char *name, int namlen)
+nfsd4_unlink_clid_dir(char *name, int namlen, struct nfsd_net *nn)
{
struct dentry *dir, *dentry;
int status;
dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
- dir = rec_file->f_path.dentry;
+ dir = nn->rec_file->f_path.dentry;
mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_one_len(name, dir, namlen);
if (IS_ERR(dentry)) {
struct nfs4_client_reclaim *crp;
char dname[HEXDIR_LEN];
int status;
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
- if (!rec_file || !test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
+ if (!nn->rec_file || !test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
return;
status = nfs4_make_rec_clidname(dname, &clp->cl_name);
if (status)
return legacy_recdir_name_error(status);
- status = mnt_want_write_file(rec_file);
+ status = mnt_want_write_file(nn->rec_file);
if (status)
goto out;
clear_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags);
if (status < 0)
goto out_drop_write;
- status = nfsd4_unlink_clid_dir(dname, HEXDIR_LEN-1);
+ status = nfsd4_unlink_clid_dir(dname, HEXDIR_LEN-1, nn);
nfs4_reset_creds(original_cred);
if (status == 0) {
- vfs_fsync(rec_file, 0);
- if (in_grace) {
+ vfs_fsync(nn->rec_file, 0);
+ if (nn->in_grace) {
/* remove reclaim record */
- crp = nfsd4_find_reclaim_client(dname);
+ crp = nfsd4_find_reclaim_client(dname, nn);
if (crp)
- nfs4_remove_reclaim_record(crp);
+ nfs4_remove_reclaim_record(crp, nn);
}
}
out_drop_write:
- mnt_drop_write_file(rec_file);
+ mnt_drop_write_file(nn->rec_file);
out:
if (status)
printk("NFSD: Failed to remove expired client state directory"
}
static int
-purge_old(struct dentry *parent, struct dentry *child)
+purge_old(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
{
int status;
- if (nfs4_has_reclaimed_state(child->d_name.name))
+ if (nfs4_has_reclaimed_state(child->d_name.name, nn))
return 0;
status = vfs_rmdir(parent->d_inode, child);
}
static void
-nfsd4_recdir_purge_old(struct net *net, time_t boot_time)
+nfsd4_recdir_purge_old(struct nfsd_net *nn, time_t boot_time)
{
int status;
- in_grace = false;
- if (!rec_file)
+ nn->in_grace = false;
+ if (!nn->rec_file)
return;
- status = mnt_want_write_file(rec_file);
+ status = mnt_want_write_file(nn->rec_file);
if (status)
goto out;
- status = nfsd4_list_rec_dir(purge_old);
+ status = nfsd4_list_rec_dir(purge_old, nn);
if (status == 0)
- vfs_fsync(rec_file, 0);
- mnt_drop_write_file(rec_file);
+ vfs_fsync(nn->rec_file, 0);
+ mnt_drop_write_file(nn->rec_file);
out:
- nfs4_release_reclaim();
+ nfs4_release_reclaim(nn);
if (status)
printk("nfsd4: failed to purge old clients from recovery"
- " directory %s\n", rec_file->f_path.dentry->d_name.name);
+ " directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
}
static int
-load_recdir(struct dentry *parent, struct dentry *child)
+load_recdir(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
{
if (child->d_name.len != HEXDIR_LEN - 1) {
printk("nfsd4: illegal name %s in recovery directory\n",
/* Keep trying; maybe the others are OK: */
return 0;
}
- nfs4_client_to_reclaim(child->d_name.name);
+ nfs4_client_to_reclaim(child->d_name.name, nn);
return 0;
}
static int
-nfsd4_recdir_load(void) {
+nfsd4_recdir_load(struct net *net) {
int status;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
- if (!rec_file)
+ if (!nn->rec_file)
return 0;
- status = nfsd4_list_rec_dir(load_recdir);
+ status = nfsd4_list_rec_dir(load_recdir, nn);
if (status)
printk("nfsd4: failed loading clients from recovery"
- " directory %s\n", rec_file->f_path.dentry->d_name.name);
+ " directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
return status;
}
*/
static int
-nfsd4_init_recdir(void)
+nfsd4_init_recdir(struct net *net)
{
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
const struct cred *original_cred;
int status;
printk("NFSD: Using %s as the NFSv4 state recovery directory\n",
user_recovery_dirname);
- BUG_ON(rec_file);
+ BUG_ON(nn->rec_file);
status = nfs4_save_creds(&original_cred);
if (status < 0) {
return status;
}
- rec_file = filp_open(user_recovery_dirname, O_RDONLY | O_DIRECTORY, 0);
- if (IS_ERR(rec_file)) {
+ nn->rec_file = filp_open(user_recovery_dirname, O_RDONLY | O_DIRECTORY, 0);
+ if (IS_ERR(nn->rec_file)) {
printk("NFSD: unable to find recovery directory %s\n",
user_recovery_dirname);
- status = PTR_ERR(rec_file);
- rec_file = NULL;
+ status = PTR_ERR(nn->rec_file);
+ nn->rec_file = NULL;
}
nfs4_reset_creds(original_cred);
if (!status)
- in_grace = true;
+ nn->in_grace = true;
return status;
}
+
+static int
+nfs4_legacy_state_init(struct net *net)
+{
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ int i;
+
+ nn->reclaim_str_hashtbl = kmalloc(sizeof(struct list_head) *
+ CLIENT_HASH_SIZE, GFP_KERNEL);
+ if (!nn->reclaim_str_hashtbl)
+ return -ENOMEM;
+
+ for (i = 0; i < CLIENT_HASH_SIZE; i++)
+ INIT_LIST_HEAD(&nn->reclaim_str_hashtbl[i]);
+ nn->reclaim_str_hashtbl_size = 0;
+
+ return 0;
+}
+
+static void
+nfs4_legacy_state_shutdown(struct net *net)
+{
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ kfree(nn->reclaim_str_hashtbl);
+}
+
static int
nfsd4_load_reboot_recovery_data(struct net *net)
{
int status;
+ status = nfsd4_init_recdir(net);
+ if (!status)
+ status = nfsd4_recdir_load(net);
+ if (status)
+ printk(KERN_ERR "NFSD: Failure reading reboot recovery data\n");
+ return status;
+}
+
+static int
+nfsd4_legacy_tracking_init(struct net *net)
+{
+ int status;
+
/* XXX: The legacy code won't work in a container */
if (net != &init_net) {
WARN(1, KERN_ERR "NFSD: attempt to initialize legacy client "
return -EINVAL;
}
- nfs4_lock_state();
- status = nfsd4_init_recdir();
- if (!status)
- status = nfsd4_recdir_load();
- nfs4_unlock_state();
+ status = nfs4_legacy_state_init(net);
if (status)
- printk(KERN_ERR "NFSD: Failure reading reboot recovery data\n");
+ return status;
+
+ status = nfsd4_load_reboot_recovery_data(net);
+ if (status)
+ goto err;
+ return 0;
+
+err:
+ nfs4_legacy_state_shutdown(net);
return status;
}
static void
-nfsd4_shutdown_recdir(void)
+nfsd4_shutdown_recdir(struct nfsd_net *nn)
{
- if (!rec_file)
+ if (!nn->rec_file)
return;
- fput(rec_file);
- rec_file = NULL;
+ fput(nn->rec_file);
+ nn->rec_file = NULL;
}
static void
nfsd4_legacy_tracking_exit(struct net *net)
{
- nfs4_release_reclaim();
- nfsd4_shutdown_recdir();
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ nfs4_release_reclaim(nn);
+ nfsd4_shutdown_recdir(nn);
+ nfs4_legacy_state_shutdown(net);
}
/*
int status;
char dname[HEXDIR_LEN];
struct nfs4_client_reclaim *crp;
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
/* did we already find that this client is stable? */
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
}
/* look for it in the reclaim hashtable otherwise */
- crp = nfsd4_find_reclaim_client(dname);
+ crp = nfsd4_find_reclaim_client(dname, nn);
if (crp) {
set_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags);
crp->cr_clp = clp;
}
static struct nfsd4_client_tracking_ops nfsd4_legacy_tracking_ops = {
- .init = nfsd4_load_reboot_recovery_data,
+ .init = nfsd4_legacy_tracking_init,
.exit = nfsd4_legacy_tracking_exit,
.create = nfsd4_create_clid_dir,
.remove = nfsd4_remove_clid_dir,
}
static void
-nfsd4_cld_grace_done(struct net *net, time_t boot_time)
+nfsd4_cld_grace_done(struct nfsd_net *nn, time_t boot_time)
{
int ret;
struct cld_upcall *cup;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
struct cld_net *cn = nn->cld_net;
cup = alloc_cld_upcall(cn);
}
static void
-nfsd4_umh_cltrack_grace_done(struct net __attribute__((unused)) *net,
+nfsd4_umh_cltrack_grace_done(struct nfsd_net __attribute__((unused)) *nn,
time_t boot_time)
{
char *legacy;
{
int status;
struct path path;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
/* just run the init if it the method is already decided */
- if (client_tracking_ops)
+ if (nn->client_tracking_ops)
goto do_init;
/*
* First, try a UMH upcall. It should succeed or fail quickly, so
* there's little harm in trying that first.
*/
- client_tracking_ops = &nfsd4_umh_tracking_ops;
- status = client_tracking_ops->init(net);
+ nn->client_tracking_ops = &nfsd4_umh_tracking_ops;
+ status = nn->client_tracking_ops->init(net);
if (!status)
return status;
* See if the recoverydir exists and is a directory. If it is,
* then use the legacy ops.
*/
- client_tracking_ops = &nfsd4_legacy_tracking_ops;
+ nn->client_tracking_ops = &nfsd4_legacy_tracking_ops;
status = kern_path(nfs4_recoverydir(), LOOKUP_FOLLOW, &path);
if (!status) {
status = S_ISDIR(path.dentry->d_inode->i_mode);
}
/* Finally, try to use nfsdcld */
- client_tracking_ops = &nfsd4_cld_tracking_ops;
+ nn->client_tracking_ops = &nfsd4_cld_tracking_ops;
printk(KERN_WARNING "NFSD: the nfsdcld client tracking upcall will be "
"removed in 3.10. Please transition to using "
"nfsdcltrack.\n");
do_init:
- status = client_tracking_ops->init(net);
+ status = nn->client_tracking_ops->init(net);
if (status) {
printk(KERN_WARNING "NFSD: Unable to initialize client "
"recovery tracking! (%d)\n", status);
- client_tracking_ops = NULL;
+ nn->client_tracking_ops = NULL;
}
return status;
}
void
nfsd4_client_tracking_exit(struct net *net)
{
- if (client_tracking_ops) {
- if (client_tracking_ops->exit)
- client_tracking_ops->exit(net);
- client_tracking_ops = NULL;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
+ if (nn->client_tracking_ops) {
+ if (nn->client_tracking_ops->exit)
+ nn->client_tracking_ops->exit(net);
+ nn->client_tracking_ops = NULL;
}
}
void
nfsd4_client_record_create(struct nfs4_client *clp)
{
- if (client_tracking_ops)
- client_tracking_ops->create(clp);
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
+
+ if (nn->client_tracking_ops)
+ nn->client_tracking_ops->create(clp);
}
void
nfsd4_client_record_remove(struct nfs4_client *clp)
{
- if (client_tracking_ops)
- client_tracking_ops->remove(clp);
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
+
+ if (nn->client_tracking_ops)
+ nn->client_tracking_ops->remove(clp);
}
int
nfsd4_client_record_check(struct nfs4_client *clp)
{
- if (client_tracking_ops)
- return client_tracking_ops->check(clp);
+ struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
+
+ if (nn->client_tracking_ops)
+ return nn->client_tracking_ops->check(clp);
return -EOPNOTSUPP;
}
void
-nfsd4_record_grace_done(struct net *net, time_t boot_time)
+nfsd4_record_grace_done(struct nfsd_net *nn, time_t boot_time)
{
- if (client_tracking_ops)
- client_tracking_ops->grace_done(net, boot_time);
+ if (nn->client_tracking_ops)
+ nn->client_tracking_ops->grace_done(nn, boot_time);
}
static int
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff