Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 4fda18d..b71a39d 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* net/sunrpc/rpc_pipe.c
*
@@ -13,6 +14,7 @@
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/mount.h>
+#include <linux/fs_context.h>
#include <linux/namei.h>
#include <linux/fsnotify.h>
#include <linux/kernel.h>
@@ -202,18 +204,11 @@
}
static void
-rpc_i_callback(struct rcu_head *head)
+rpc_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(rpc_inode_cachep, RPC_I(inode));
}
-static void
-rpc_destroy_inode(struct inode *inode)
-{
- call_rcu(&inode->i_rcu, rpc_i_callback);
-}
-
static int
rpc_pipe_open(struct inode *inode, struct file *filp)
{
@@ -604,6 +599,8 @@
dget(dentry);
ret = simple_rmdir(dir, dentry);
+ if (!ret)
+ fsnotify_rmdir(dir, dentry);
d_delete(dentry);
dput(dentry);
return ret;
@@ -615,6 +612,8 @@
dget(dentry);
ret = simple_unlink(dir, dentry);
+ if (!ret)
+ fsnotify_unlink(dir, dentry);
d_delete(dentry);
dput(dentry);
return ret;
@@ -1123,7 +1122,7 @@
*/
static const struct super_operations s_ops = {
.alloc_inode = rpc_alloc_inode,
- .destroy_inode = rpc_destroy_inode,
+ .free_inode = rpc_free_inode,
.statfs = simple_statfs,
};
@@ -1266,7 +1265,7 @@
* that this file will be there and have a certain format.
*/
static int
-rpc_show_dummy_info(struct seq_file *m, void *v)
+rpc_dummy_info_show(struct seq_file *m, void *v)
{
seq_printf(m, "RPC server: %s\n", utsname()->nodename);
seq_printf(m, "service: foo (1) version 0\n");
@@ -1275,25 +1274,12 @@
seq_printf(m, "port: 0\n");
return 0;
}
-
-static int
-rpc_dummy_info_open(struct inode *inode, struct file *file)
-{
- return single_open(file, rpc_show_dummy_info, NULL);
-}
-
-static const struct file_operations rpc_dummy_info_operations = {
- .owner = THIS_MODULE,
- .open = rpc_dummy_info_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rpc_dummy_info);
static const struct rpc_filelist gssd_dummy_info_file[] = {
[0] = {
.name = "info",
- .i_fop = &rpc_dummy_info_operations,
+ .i_fop = &rpc_dummy_info_fops,
.mode = S_IFREG | 0400,
},
};
@@ -1367,11 +1353,11 @@
}
static int
-rpc_fill_super(struct super_block *sb, void *data, int silent)
+rpc_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct inode *inode;
struct dentry *root, *gssd_dentry;
- struct net *net = get_net(sb->s_fs_info);
+ struct net *net = sb->s_fs_info;
struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
int err;
@@ -1428,12 +1414,28 @@
}
EXPORT_SYMBOL_GPL(gssd_running);
-static struct dentry *
-rpc_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int rpc_fs_get_tree(struct fs_context *fc)
{
- struct net *net = current->nsproxy->net_ns;
- return mount_ns(fs_type, flags, data, net, net->user_ns, rpc_fill_super);
+ return get_tree_keyed(fc, rpc_fill_super, get_net(fc->net_ns));
+}
+
+static void rpc_fs_free_fc(struct fs_context *fc)
+{
+ if (fc->s_fs_info)
+ put_net(fc->s_fs_info);
+}
+
+static const struct fs_context_operations rpc_fs_context_ops = {
+ .free = rpc_fs_free_fc,
+ .get_tree = rpc_fs_get_tree,
+};
+
+static int rpc_init_fs_context(struct fs_context *fc)
+{
+ put_user_ns(fc->user_ns);
+ fc->user_ns = get_user_ns(fc->net_ns->user_ns);
+ fc->ops = &rpc_fs_context_ops;
+ return 0;
}
static void rpc_kill_sb(struct super_block *sb)
@@ -1461,7 +1463,7 @@
static struct file_system_type rpc_pipe_fs_type = {
.owner = THIS_MODULE,
.name = "rpc_pipefs",
- .mount = rpc_mount,
+ .init_fs_context = rpc_init_fs_context,
.kill_sb = rpc_kill_sb,
};
MODULE_ALIAS_FS("rpc_pipefs");