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Diffstat (limited to 'fs/afs/super.c')
-rw-r--r--fs/afs/super.c68
1 files changed, 42 insertions, 26 deletions
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 9e5d7966621c..4d3e274207fb 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -48,6 +48,8 @@ struct file_system_type afs_fs_type = {
};
MODULE_ALIAS_FS("afs");
+int afs_net_id;
+
static const struct super_operations afs_super_ops = {
.statfs = afs_statfs,
.alloc_inode = afs_alloc_inode,
@@ -117,7 +119,7 @@ int __init afs_fs_init(void)
/*
* clean up the filesystem
*/
-void __exit afs_fs_exit(void)
+void afs_fs_exit(void)
{
_enter("");
@@ -351,14 +353,19 @@ static int afs_test_super(struct super_block *sb, void *data)
struct afs_super_info *as1 = data;
struct afs_super_info *as = AFS_FS_S(sb);
- return (as->net == as1->net &&
+ return (as->net_ns == as1->net_ns &&
as->volume &&
- as->volume->vid == as1->volume->vid);
+ as->volume->vid == as1->volume->vid &&
+ !as->dyn_root);
}
static int afs_dynroot_test_super(struct super_block *sb, void *data)
{
- return false;
+ struct afs_super_info *as1 = data;
+ struct afs_super_info *as = AFS_FS_S(sb);
+
+ return (as->net_ns == as1->net_ns &&
+ as->dyn_root);
}
static int afs_set_super(struct super_block *sb, void *data)
@@ -418,10 +425,14 @@ static int afs_fill_super(struct super_block *sb,
if (!sb->s_root)
goto error;
- if (params->dyn_root)
+ if (as->dyn_root) {
sb->s_d_op = &afs_dynroot_dentry_operations;
- else
+ ret = afs_dynroot_populate(sb);
+ if (ret < 0)
+ goto error;
+ } else {
sb->s_d_op = &afs_fs_dentry_operations;
+ }
_leave(" = 0");
return 0;
@@ -437,7 +448,7 @@ static struct afs_super_info *afs_alloc_sbi(struct afs_mount_params *params)
as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL);
if (as) {
- as->net = afs_get_net(params->net);
+ as->net_ns = get_net(params->net_ns);
if (params->dyn_root)
as->dyn_root = true;
else
@@ -450,12 +461,31 @@ static void afs_destroy_sbi(struct afs_super_info *as)
{
if (as) {
afs_put_volume(as->cell, as->volume);
- afs_put_cell(as->net, as->cell);
- afs_put_net(as->net);
+ afs_put_cell(afs_net(as->net_ns), as->cell);
+ put_net(as->net_ns);
kfree(as);
}
}
+static void afs_kill_super(struct super_block *sb)
+{
+ struct afs_super_info *as = AFS_FS_S(sb);
+ struct afs_net *net = afs_net(as->net_ns);
+
+ if (as->dyn_root)
+ afs_dynroot_depopulate(sb);
+
+ /* Clear the callback interests (which will do ilookup5) before
+ * deactivating the superblock.
+ */
+ if (as->volume)
+ afs_clear_callback_interests(net, as->volume->servers);
+ kill_anon_super(sb);
+ if (as->volume)
+ afs_deactivate_volume(as->volume);
+ afs_destroy_sbi(as);
+}
+
/*
* get an AFS superblock
*/
@@ -472,12 +502,13 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
_enter(",,%s,%p", dev_name, options);
memset(&params, 0, sizeof(params));
- params.net = &__afs_net;
ret = -EINVAL;
if (current->nsproxy->net_ns != &init_net)
goto error;
-
+ params.net_ns = current->nsproxy->net_ns;
+ params.net = afs_net(params.net_ns);
+
/* parse the options and device name */
if (options) {
ret = afs_parse_options(&params, options, &dev_name);
@@ -563,21 +594,6 @@ error:
return ERR_PTR(ret);
}
-static void afs_kill_super(struct super_block *sb)
-{
- struct afs_super_info *as = AFS_FS_S(sb);
-
- /* Clear the callback interests (which will do ilookup5) before
- * deactivating the superblock.
- */
- if (as->volume)
- afs_clear_callback_interests(as->net, as->volume->servers);
- kill_anon_super(sb);
- if (as->volume)
- afs_deactivate_volume(as->volume);
- afs_destroy_sbi(as);
-}
-
/*
* Initialise an inode cache slab element prior to any use. Note that
* afs_alloc_inode() *must* reset anything that could incorrectly leak from one